JPH07500727A - Clear and low melting konjac glucomannan - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] 7. Claim 1, 2.3.4.5 or 6, characterized in that it consists of an aqueous sol. A transparent konjac according to any one of the claims.

8. Claim 1.2.3.4.5 or 6, characterized in that it consists of an aqueous sol. A transparent konjac according to any one of the claims.

9. Mixture with at least one additional hydrocolloid before the gel is formed The transparent konjac according to claim 8, characterized in that it consists of:

10. Is there additional hydrocolloid in carrageenan, xanthan and agarose? The transparent konjac according to claim 9, which is selected from the following.

11. The weight ratio of clear konjac to hydrocolloid in the gel mixture is from 0.1 to 10. The transparent konjac according to claim 10, wherein: 1.

12. The gel may consist of a mixture with at least an additional hydrocolloid before it is formed. characterized by Substantially contains no insoluble impurities; has a nitrogen content of 0.60 wt% or less: 1. Using the Lumadine turbidity standard. 20 turbidity units when measured at Ow/v% concentration Konjac-derived glucomannan with lower aqueous sol turbidity potential? Transparent konnyaku.

+3. Additional hydrocolloids are selected from carrageenan, xanthan, and agarose. The transparent konjac gel according to claim 12, characterized in that it is transparent.

14. The weight ratio of clear konjac to hydrocolloid in the mixture is about 0.1 to 101. The transparent konjac gel according to claim 12, characterized in that:

15. It is in the form of a water-insoluble, spongy, dimensionally stable mass. The transparent konjac according to claim 1, characterized by:

16. It is in the form of a water-insoluble, spongy, dimensionally stable mass. substantially free of insoluble impurities; containing 0.60 wt% or less nitrogen; and using a formatin turbidity standard: 1. Measured by Ow/V% concentration Derived from konnyaku, which has an aqueous sol turbidity potential lower than 20 turbidity. Transparent konnyaku made of glucomannan.

At temperatures between 17.5°C and 0°C, it melts into a sol that passes through at temperatures above about 5°C. Transparent konjac according to claim 1, characterized in that it is an aqueous low melting gel at temperature. .

At temperatures between 18.5°C and 0°C, it melts into a sol that passes through at temperatures above about 5°C. Characterized by being an aqueous low-melting gel at temperatures substantially free of insoluble impurities Without: having a nitrogen content of 0.60wj% or less, and formalin turbidity standard Using 1. Aqueous sol turbidity point of 20 turbidity units when measured at Ow/v% concentration Transparent konjac made from konjac-derived glucomannan with tensile properties.

At temperatures between 18.5°C and 0°C, it melts into the sol that passes through it, but at temperatures above 5°C. Characterized by being an aqueous low-melting gel at temperatures substantially free of insoluble impurities No nitrogen content below 0.60wt%, and formalin turbidity standard Using 1. Aqueous sol mixtures with less than 20 turbidity units when measured at Ow/v% concentration Transparent konjac made from konjac-derived glucomannan with turbidity potential nine.

19.Next continuous process [a.] Preparing an aqueous sol of crude konnyaku containing insoluble impurities and glucomannan the law of nature, [b] This crude konjac sol is treated with an effective extraction amount of a reagent capable of extracting insoluble impurities. contact, [C]] insoluble impurities are precipitated and removed, and [d] the remaining aqueous sol is treatment with a coagulant present in an amount to coagulate substantially all the glucomannan therein. [e] Remove glucomannan coagulum and dry to obtain dry transparent glucomannan. collect naan, A method for producing transparent konjac characterized by a process comprising:

20, Kill-1・Agent: Soluble salt; Insoluble salt, Ion exchange agent: Organic solvent: Hot water: Also 1. Selecting an extractant among the means for adjusting the pH of the sol. 9. The method described in 9.

2+, an extractant or an insoluble salt.

22. Claim 19, characterized in that the coagulant is isopropyl alcohol. the method of.

23. It is characterized by treating the aqueous crude konjac fine powder with a viscosity reducing agent before extraction. 20. The method according to claim 19.

24. Treating the aqueous sol remaining after extraction with a viscosity reducing agent before treating with a coagulant. The method according to claim I9, characterized in that:

25. Purification of dry transparent glucomannan or its aqueous sol before purification with a viscosity reducing agent 20. Process according to claim 19, characterized in that the treatment is carried out during or after purification.

26. A claim characterized in that the viscosity reducing agent is an acid simultaneously used as an extracting agent. The method according to claim 19.

27. The method according to claim 19, characterized in that it is a viscosity reducing agent or gamma ray radiation. Law.

28. Cool the transparent konjac aqueous sol to freezing temperature or slightly lower temperature, and then 16. The sponge-like, dimensional stabilizer according to claim 15, characterized in that the sponge-like, dimensional stable material is A method of producing a fixed mass.

29. Cool the transparent konjac aqueous sol to freezing temperature or lower temperature, and then 17. The sponge-like, dimensionally stable material according to claim 16, wherein the sponge-like and dimensionally stable material is A method of producing a fixed mass.

30, the pH of the clear konjac aqueous sol was adjusted between approximately 96 and 123 before gel formation. 18. The method for producing a low-melting gel according to claim 17, comprising:

31, Patent No. 30 characterized in that the pH is adjusted between 10.0 and 11.5. How to put it on.

32. The gel formation is performed during heating at a temperature of 50-120°C for 5-60 minutes. 31. The method according to claim 30, characterized in that:

33. The gel formation is carried out during heating at a temperature of 80-90 °C for 20-30 minutes. 32. A method according to claim 31, characterized in that:

34. Adjust the transparent konjac aqueous sol between 9.6 and 12.3 before gel formation. The method for producing a low melting gel according to claim 18.

35, the pH is adjusted between 1O90 and 11.5. Method described.

36. The gel formation is carried out during heating at a temperature of 50-120 °C for 5-60 minutes. 35. The method according to claim 34, characterized in that:

37. The gel formation is carried out during heating at a temperature of 80-90 °C for 20-30 minutes. 36. The method according to claim 35, characterized in that:

Engraving (no changes to the content) Specification Transparent and low melting konjac glucomannan (pure konjac derived from konjac) Glucomannan) transparent konjac and its production method. Ru. The present invention includes transparent konjac powder and the sols and gels produced therefrom. nothing. Transparent Hunyaku glucomannan has high purity and low nitrogen content, and its liquids and gels have low turbidity. The present invention also provides transparent coatings containing low melting products. It is also concerned with the field of Nnyaku, and the method of manufacturing the said product as well as the transparent coating. It also relates to the method of changing the viscosity of nnyaku.

Konjac (Amorphophallus konjac) is a type of plant. Its tuber power is a well-known food product in Okinawa and Japan, namely konnyaku powder. is the source of This fine powder contains various insoluble substances described below as well as large amounts of the desired Contains water-soluble substances and when reconstituted with water glucomannan and soluble starch Constitutes a highly viscous sol. The main soluble components are glucomannan, D-glucose and It is a polysaccharide consisting of D-mannose and D-mannose, and this component is found in various foods. Useful as a component as well as in films, oil drilling fluids and coatings. It is useful as a component for the eel industry.

Crude (natural, non-transparent) fine konjac powder contains many impurities, mainly insoluble starch. Nitrogen-containing substances are present, including cellulose, cellulose, and proteins.

Many of these impurities are found in the sac that encloses fine konjac powder inside the tuber. It arises from As a result, the sol and gel of crude konjac powder (water have a markedly cloudy, milky or cloudy appearance (attributable to expanded particulate impurities). One.

No. 3,928,322 to Sugiyama et al. (and its continuing application, U.S. Pat. Patent No. 3,973.008 first discloses that an insoluble konjak powder sol is extracted from an aqueous fine powder sol. sexual impurities are removed by sifting or other conventional methods, and the sol is then dialyzed; The resulting liquid is then freeze-dried to create a powder that is difficult to grind and hardly soluble in water. Crude konjac powder by obtaining a cloudy, flocculent, low-density fibrous product Konjac mannan polysaccharide light, consisting mainly of fine konjac powder, A method for producing glucomannan is described.

Japanese Patent Publication No. 1-49657 (published on March 1, 1989) is 0.2 Konjac mannan products containing less than 96 nitrogenous components are described. deer However, methods to achieve this reduced nitrogen content are either not described or not available. This is clearly due to sample dilution.

U.S. Pat. No. 2,144,522 describes a gummy sol in the presence of aluminum sulfate. Locust bean gum (locust b) Method for decolorizing and clarifying galactomannan gum sol such as ean gum) is listed. Aluminum sulfate is originally sodium sulfate that exists in activated carbon. and a sufficient amount to form the double salt Al-Na.

U.S. Pat. No. 3,346.556 discloses that the A method for preventing the degradation of tomannans, such as locust beans, is described. This method is Polar organic oxygen-containing hydrophilic stabilizers for water-based gums, such as alcohols and glycols. , ketones or the like.

Accompanying this method, locusts are A method for clarifying blister gum is described in one example (Example 5).

Japanese Patent Publication No. 59-227.267 (published December 20, 1984) Publication) and Specification No. 58-165,758 (published on September 3, 1983) are crude concrete The aqueous sol of Nyaku fine powder is treated with some kind of salt at a pH of 0 or lower. , obtain konnyaku in insoluble form for use as mainly insoluble food products The method is described.

Japanese Patent Publication No. 63-68054 (published on March 26, 1988) Describes a reversibly soluble konjac gel product that remains present in the product Removal of insoluble matter is not described.

Is it a combination of glucomannan obtained from crude konjac and other hydrocolloids? Gums formed from polysaccharides, especially polysaccharides such as carrageenan or xanthan gum The ids are well known in the art. For example, U.S. Pat. No. 27,704.

The present invention provides dry transparent konjac glucomannan with low nitrogen content, its aqueous sol and Gels and methods of making each of these products are provided. present invention Furthermore, a method for changing the viscosity potential of transparent konjac, transparent konjac co-processed hydrogen formed by combining selected hydrocolloid gums with Drocolloids, low melting transparent konjac gels, and further methods and products Provide changes.

The term "clarified J konnyaku" used in this specification is Contains virtually no insoluble impurities, contains less nitrogen than opaque konnyaku. and less opaque than konnyaku when formed into an aqueous sol or gel. It refers to konjac glucomannan, which has a high degree of turbidity. This statement will be used The term ``crude'' refers to glucomannan or naturally occurring If there are any other impurities that may still be present in the sac, ku means natural fine konnyaku powder.

Generally, the present invention provides that the clear konnyaku is substantially free of insoluble impurities, Associated with the aqueous sol turbidity potential of 0 turbidity units is O~0°60% by weight. (wt%) and aqueous sol turbidity between 70 and 100 turbidity units. A continuum of nitrogen content from 0 to 25 percent is associated with the potential. It is characterized by consisting of glucomannan obtained from konnyaku with This includes transparent konjac.

In a first group of embodiments, the invention provides that the transparent konjac is substantially free of impurities. , [A] Nitrogen content of more than 0.25 to about 0.60 wt% and formadi using a turbidity standard (Pormazin Tubidity 5 standard). 1. Aqueous sol turbidity of 20 to 70 turbidity units when measured at Ow/v% concentration degree potential, and [B] nitrogen content of 0.25 wt% or less and 20-100 turbidity when measured at I, Ow/v% concentration using Madin turbidity standard. has a continuum of aqueous sol turbidity potential in turbidity units, of which [B] is preferred; transparent konnyaku characterized by comprising glucomannan obtained from konnyaku provide food. More preferably, the transparent konnyaku contains 75 wt% or less of O, L and nitrogen. characterized by aqueous sol turbidity potential of 20 to 70 turbidity units. . More preferably, the clear konjac has a nitrogen content of 0.15 wt% or less and 20 Characterized by an aqueous sol turbidity potential of ~60 turbidity units. This embodiment The first group consists of transparent konjac sols and gels, low melting and porous products, and A method for manufacturing these is provided.

In a second group of embodiments, the invention provides that the clear konjac is substantially free of insoluble impurities. free of nitrogen, has a nitrogen content of approximately 0.60 wt% or less, and has a formalin turbidity standard. Using 1. Aqueous sol mixtures with turbidity below 20 when measured at Ow/v% concentration It is characterized by being composed of konjac-derived glucomannan with turbidity potential. Provide transparent konnyaku. Preferably, the clear konjac contains about 0.25% or less. It is characterized by a low nitrogen content. More preferably, the clear konjac has a content of about 0. Characterized by a nitrogen content of no more than 175%. A second group of embodiments is this transparent Konjac sol and gel and a method for producing the same are provided.

The transparent konjac of the present invention is also available from Brookfield. 1 when measured at 25° and 2 Orpm using viscometer model LVTDV-n. Aqueous sol viscosity potential of about 50-25,0000 cps at a concentration of % w/v, preferred It is preferably characterized by a viscosity of i,ooo to 25,000 cps.

Generally, the method for producing transparent konnyaku of the present invention includes the following sequential steps: [a] insoluble An aqueous sol of crude konnyaku containing impurities and glucomannan is prepared [b] Extracting effective amount of reagent that can extract insoluble impurities from crude konnyaku sol [C] insoluble impurities are precipitated and removed, [d] the remaining aqueous sol is Coagulation present in sufficient amount to coagulate substantially all of the glucomannan in the glucomannan coagulate, and [e] the glucomannan From each step of removing the glucomannan coagulum, drying, and collecting dried transparent glucomannan, It is characterized by becoming.

In a first group of embodiments, the transparent konjac of the invention comprises fine konjac powder in water. and treating the resulting glucomannan dispersion with one or more reagents. It can be produced by extraction by condensation, precipitation or absorption of impurities present. Ru. Such impurities are primarily naturally occurring in konjac tubers and are Nitrogen-containing substances such as proteins, insoluble fibers, and starches. of extraction Later, impurities are separated from the dispersion and the resulting glucomannan is treated with alcohol. coagulate from the remaining dispersion by adding a water-miscible coagulant and the resulting coagulate The solids are dried and ground to form the clear konjac of the present invention in powder form.

These methods allow clear konjac to be produced significantly more quickly than previously known methods. It is particularly excellent in terms of

In a second group of embodiments, the method for producing transparent konjac includes the following steps: [a] Making an aqueous sol of crude konnyaku containing soluble impurities and glucomannan, [l]] Extract insoluble impurities from the obtained crude konnyaku sol by precipitation dicalcium phosphate, calcium phosphate, magnesium phosphate in an amount effective for , calcium sulfate and aluminum sulfate (preferably calcium sulfate and aluminum sulfate) Extraction salt selected from one or more types of gnesium, more preferably aluminum sulfate) in contact with [c] precipitate and remove insoluble impurities; [d] remove the remaining aqueous sol from the berries therein; Isopropyl present in sufficient quantity to coagulate qualitatively all the glucomannan glucomannan coagulum is formed by treatment with alcohol, and [e] Remove glucomannan coagulate and dry to collect transparent glucomannan It is characterized by consisting of each process.

Optionally, the transparent konjac sol, alone or together with other ingredients, can be prepared by any known method. can be further converted into the corresponding pure gel by addition of alkali. . The resulting gel can then be used in or as food products and also in paints and It can be used industrially as a component in other coating materials.

Clear konjac has the unique property of liquefying within a certain low temperature range.

This property is similar to that of most hydrocolloid gels, which are further cooled and then When cooled to room temperature, clear konjac becomes fibrous, porous, absorbent and gel-like. structures, and when compressed they also assume their original form. Therefore, this It can act as a ponge, absorbing liquid, and directing that liquid to the desired area. , for example into cells, seeds, calluses or plantlets placed within them. Wear.

The method of the present invention offers a variety of utilities over non-transparent (crude) konjac flour.

i.e. it provides improved odor, color, solubility and grindability. Crude konjac is It has a well-known characteristic odor and a light brown to dark brown color (as a dry powder). Sara In addition, crude konnyaku has irregular particles and cannot be ground at normal milling temperatures. Can not. Milling of crude konjac or such grinding produces high temperatures; This temperature significantly destroys its viscosity potential in the same way as dry pyrolysis and to change its color to black. On the contrary, the transparent konjac of the present invention has clear It is a white powder that forms particles and can be easily ground into uniform particle size. . Furthermore, transparent konnyaku has a more uniform size and glucomannan content; Avoid spreading and uncontrolled changes in viscosity or gel strength that occur in crude konnyaku. I can do it.

Other desirable properties of the transparent konjac powder of the present invention are that it is contrary to crude konjac powder. In contrast, clear konjac hydrates effortlessly and quickly in water and room temperature, which allows it to be used in a variety of preparations. Rapid formulation of sols of different viscosities while promoting the use of konnyaku in products promote.

Figure 1 shows the nitrogen and turbidity values of transparent konnyaku of the present invention obtained using various extractants. , compared with those of prior art products containing crude konjac.

FIG. 2 compares the UV absorbance of transparent konjac with crude konjac.

Unless otherwise indicated in the examples or otherwise indicated, the amounts of ingredients and parameters used herein All numbers expressing parameters or reaction conditions are expressed by the term "about" It should be understood that all examples are subject to change.

A more purified form of glucomannan than can be obtained from crude konjac. Purification of konnyaku to obtain various benefits. The most important one is Transparent konjac sol has a certain degree of turbidity, but transparent konjac sol It's something that's essentially understandable. Unexpectedly, this transparent condom Mix the hydrocolloid sols with other selected hydrocolloid sols and then mix this mixture. When gelled, there is a synergistic reaction that produces a thermally reversible gel. So A clear gel like clear gel or make a dessert if there is a profit. Sometimes useful in biotechnology applications. Collaboratively combined with transparent konnyaku Hydrocolloids useful in combination include clear xanthan, locust bean gum, and amyloid. Includes rose and amylopectin starch, and carragetin. agarose Gel-form hydrocolloids such as are merely additives, not synergists. . Crude xanthan and AMF (seaweed fine powder, sometimes solid as strained ginan) The combination is not suitable for this purpose as it does not produce the desired clear gel. It can be noted that it is not urgent. Only transparent konjac gel is crude konjac gel. Although it is less cloudy than before, it is still somewhat cloudy.

Another important advantage of transparent konjac over crude konjac is that it can be used as a dry powder. It is more stable. For example, raw konnyaku is heated to a temperature higher than room temperature ( 80% of its aqueous sol viscosity potential is lost when stored at 50°C for 4 weeks. Ru. In contrast, clear konnyaku's viscosity increases when stored for the same amount of time and at the same temperature. Only about 20% of the degree potential is lost. Increased storage stability of sol roughness by both initial heating and subsequent alcohol washing through a clearing process. It is believed that the cause is denaturation of enzymes present in the manufactured materials. Transparent konnyaku is coarse An additional benefit of clarification is that it can be rehydrated more easily than manufactured konjac. .

Crude konjac starting material The crude konjac flour starting material is an industrial product available from a number of sources.

One raw material and method for producing fine konjac powder is marine colloid plutin K. 1 (Marine Co11oids Bulletin K-1), rN UTRI COL Konjac Flour J (1989) (FMC Ko Products and reports of poration, Marine Co11oids Divi sion, Philadelphia, Pennsylvania, 19103. U, S, A) It is listed. Basically, this method uses Amorphophallous tubers (Amorphophalous tuber) ophallus tuber), sliced, dried, and wet or dry After milling, the resulting konnyaku is sieved and air sized. Including being ground into powder (fine powder).

As described in the above literature, the fine powder obtained is a fine, oval, whitish powder. It consists of particles containing "fine powder sacks". In other words, glucomannan is a protein/ Encased in a fiber coating. This fine powder is stirred and hydrated over time. When exposed, the encapsulated glucomannan is released and becomes highly viscous even at a concentration of 1%. , forming a sol that is characterized by substantial turbidity and high nitrogen content. 1% by weight Viscosity ranges from 8,000 cps for sol to 130,000 cps for 3 wt% sol. Brook-fielded RVT (Brook-field@RVT) Viscometer and 2 Or pm and a suitable spindle at 25°C (the viscometer is a Brutafield engine) Ginning Laboratories, Inc., Stoughton , Mass, , U, S, A) when heated (85 °C) and was obtained after a cooling cycle.

The conversion of Brutah yield centiboise (cps) reading to viscosity function is R M in heologica Acta, 21:207-209 (19B2) itschka P.

It is described by. As used here, centiboise (cps) Equal to Skull's Second (mP-s).

Crude konjac turbidity varies significantly depending on the concentration of the sol or 8°000c ps - 130,000 cps and the aforementioned viscosity range of 1% to 3% concentration, 10 Turbidity of 0 to 300 turbidity units or Forma-zin turbidity Environmental Standards (FTS) (EPA Environmental Monitoring Standards) rMe by ng and Support Lab; March, l 979 thods of Chemical Analysis Of Water a According to method 180.1 of nd Wastes J., at a concentration of 0.5 wt% Usually obtained. With these turbidity levels, the sol generally appears cloudy and very cloudy. It is cloudy.

The high nitrogen content of early crude konjac flour is essentially due to impurities, mainly the natural tarp of the tuber. It is a function of the amount of sac fibers that envelop the protein and glucomannan. dry coarse fine The nitrogen content of the flour is considered to be high, depending on the type of tuber used. However, a range of 0.3 to 1.3 wt96 of nitrogen is typical.

Product description The clear product of the present invention is primarily aqueous solution as the degree of significantly reduced amount of impurities present. The product is characterized by a low nitrogen content and low turbidity as a liquid or gel. Sol form The corresponding viscosity of the product at I don't accept it.

When produced by the various methods of the present invention, clear konjac is substantially free of insoluble impurities. and has the lowest possible nitrogen content and turbidity.

The 1096 aqueous sol according to the present invention is MacBeth Co1oreye Co mputer model 500 (Kollomorgen Corp, , Newburgh, N, Y, ) and 10 when measured with formalin standards. having a turbidity greater than 0 (preferably 70, more preferably 60) turbidity units and the nitrogen content (dry production used to produce the sol) 0.25 (preferably 0175, more preferably 0.15)w It should not be thicker than t%. In these ranges, transparent konjac sol is practically It is apparently transparent and suitable for a variety of applications, especially as transparent, particle-free gels. clear food and biotech materials when high viscosity materials are required or high viscosity materials are desired. It can be used for scientific or biomedical/diagnostic applications.

The product of the invention may have a weight of 1.0 wt depending on how the product is manufactured. % aqueous sol 50-25,000 centiboise (Brutafield Model L The viscosity of It can be described as having a wide range and no critical range. Generally, transparent products are 1. Due to its high viscosity, it is particularly useful for food preparation.　000~25,000 viscosity . However, this viscosity can be reduced to around 50 cps by the method described here. .

Turbidity of fines and product samples is usually determined by visible light, but ultraviolet light (UV) is also used to characterize transparent products and measure the effectiveness of transparent operations. It can be used to For this measurement, a 0.5% sol of the product is made and this sol is cured. -Put it in your pet and measure its UV absorption in the 200-320 nanometer (nm) range. This can be achieved by Impurities including DNA and proteins have a wavelength of 260 to 280 nm. It absorbs UV light and peaks in this range indicate their presence and associated amounts. figure As revealed in Table 2 and Table I, the crude konjac sample had a wide range in this range. Transparent konjac with broad peaks and lacking 260-280 peaks as a whole It has a higher absorption Hassline than the sample. This means that DNA or protein This is particularly important for biotechnological separation media when the presence of be.

Table■ Crude 0.5140 0.8781 0.9634 2.6115 Transparent 0.0 647 0.0967 0.1222 0.3118 Method description The transparent konjac of the present invention is an aqueous solution of crude konjac fine powder containing insoluble impurities. heating the sol and contacting the heated sol with an extraction effective amount of one or more extractants; It can be produced by an aqueous extraction method consisting of: Crude konnyaku is used to heat the sol. acts to break up the natural sac surrounding the glucomannan present in the The extractant helps remove protein impurities as well as the sac itself.

# for used here! [extracting] and [extracting] Extraction J is coagulation, adsorption, precipitation or konjac fine powder or berries. Konjac by other methods to make it qualitatively free of insoluble impurities. It means separating insoluble impurities from.

After extraction, the sol was passed through the mouth to remove insoluble impurities, and the resulting 0 solution was added to isopropylene. The glucomannan present is coagulated with a water-miscible coagulant such as pill alcohol. Collect. The coagulum is then dried and ground into particulate form according to the invention. The company manufactures transparent fine konnyaku powder.

The extraction process is more or less dependent on the nature of the extractant used and the viscosity of the desired end product. It can change. For example, if the extractant is a solid, the extractant is combined with the crude konjac starting material. , with a mouthwash as appropriate, and stir this dry mixture until thoroughly blended. Desired concentration and viscosity of transparent konjac glucomannan obtained by dispersing it in the amount of water 0 depending on the potential. Concentration of 1 to 10 (preferably 0.5 to 3) wt% get.

Alternatively, extractants can be used to adjust the viscosity of the resulting product, especially if the acid is If used, water is added either before or after aqueous dispersion of the flour. This variance can be carried out in water at room temperature, or preferably water speeds up the method. 70-100°C (preferably 85-100°C) for 15-60 minutes or longer time to temperature, time, mixing ratio and concentration of reactants. can be mechanically modified by a person skilled in the art to optimize their operating conditions. Ru.

The sol is then passed through the mouth to remove insoluble impurities, with or without a mouthwashing agent. . Any filter that will remove insoluble particles or one that is generally satisfactory Filters such as glass wool, paper, cloth & fibrous mats or this eye It can be used for the purpose. Isn't it important to use mouthwashing agents? It is preferable to use it in an amount of 1 to 5 times the weight of fine powder. Next, try the mouth cake. Wash with boiling water until clear konjac glucomannan remains. Or preferable.

The oral fluid is then treated with a water-miscible coagulant for glucomannan, the coagulum is collected, dry. Useful coagulants include lower alcohols such as methanol and ethanol. , or isopropyl alcohol, or polar organic substances such as acetone, methyl ketone, etc. solvents, or mixtures thereof. The amount of coagulant is not critical or gluco Sufficient amount to extract mannan from the sol, generally a coagulant/glucomannan It should be added in a ratio of 1 to 4:l by weight or a ratio of 2 to 3 l by volume.

Alternatively, instead of a coagulant, the dry product can be solvated by freeze-drying or spray-drying. can be taken directly from the source.

The coagulum must be dried until ground to a fine powder. This is room temperature in a high-intensity hot air oven or if viscosity reduction is desired. It can even be carried out at higher temperatures. The resulting dry product is then ground to give the desired pass through a screen of desired size, preferably 100 mesh (149 microns). Form into particles of desired size.

The clear and low nitrogen product is suitable in its dry granular form for e.g. absorbent or textile applications. Preferably, the product is prepared by redispersing the particles in water. used in sol form. The resulting clear sol is then processed in known manner and/or can be gelled by the methods described herein. Place of dry composition in sol or gel The desired percentage concentration is highly dependent on its intended use and its viscosity. . Generally, although not critical, from 0.1 to 10 (preferably) based on the total weight of the sol. For example, 0.5 to 3.0) wt% can be used. Additionally, if this method or the product The method described herein does not include a deliberate step to reduce the viscosity of the Very high viscosities will normally be maintained despite the various processing steps involved.

As a further advantage of the present invention, this transparent konjac sol can be Bruchfield viscometer, model LVTDV-II or When measured using a 2-orpm model RVT, 1. Ow/v% (Ig/]00m1 of water) concentration and 25°C in general! , 000-25. High in the range of 000cps Normally develops viscosity. Moreover, due to the rapid hydration properties of this transparent dry powder, this powder develops this viscosity quickly. For example, opaque konjac powder or water. The hydration step typically takes about 2 hours at room temperature to form the desired twt% sol. form a sol with a viscosity of In contrast, under substantially the same conditions, the production of the present invention Hydration of the product takes about 30 minutes to achieve the same viscosity. Optionally, if desired, the viscosity I It decreases by about 50 cps at 6B degrees w/yo and 25 degrees Celsius.

The obtained sol is added with an alkali such as Co by a well-known method, It can be easily converted into a gel by subsequent heating. If the degree of polymerization or treatment Unless intentionally modified throughout the process, these gels will is generally used with the Marine Colloid Gel Tester GT2 (FMC Corporation ion, Marine Co11oids Division, Ph1la Delphia.

pen13ylvania) at 85°C!　00～310　g It has 196 gel density/cm2.

Extracting agent and means In one embodiment, useful extractants include dicalcium phosphate, calcium phosphate, aluminum, magnesium phosphate or aluminum sulfate (preferred) One or more salts selected from:

Changing the pH of crude konjac to purify konjac in a suitable extractant For example, organic acids or inorganic acids such as HCI and Na There are bases like OH. The amount of extractant used is the effective amount for extraction, i.e. i.e. the pH within which the benefits of the products described are obtained is from 1 to 85, preferably 3. This is a sufficient amount to change the value to ~85. High alkaline pH means gluco In addition to being extracted, mannan immediately begins to gel. In contrast, highly acidic At pH, the viscosity of the resulting product decreases. However, if the viscosity of the latter decreases If desired, then extraction and viscosity reduction, both of which are beneficial, can be achieved virtually simultaneously. can be done.

Aqueous extraction of crude konnyaku also contains alkali metal hexametaphosphate, ethylene noa Mince I, chelates such as oxalic acid (EDTA) and nitrilotriacetic acid (NTA) This can be achieved by using an agent. The amount of Hegyle 1 used is chelating. An effective amount, preferably an amount of 1 to 50 wt% based on the weight of the crude konjac. It should be.

Other useful extractants for konjac purification processes are ion exchangers, e.g. cation exchangers. Ruboxymethylcellulose (CMC), anion-exchanged diethyl-[2-hydro Xypropylcoaminoethylcellulose (QAE) or diethylaminoethyl lucerrose (DEAE), desired in extractable amounts, preferably crude condensate. It is used in an amount of 5 to 15 wt% based on the weight of Nyaku.

Suitable salts that may also be used as extractants include neutral salts such as sodium chloride, vinegar basic salts such as sodium chloride, or acidic salts such as calcium chloride, or Wrapping a combination of Additionally, for this purpose - base sodium phosphate and Phosphate buffer produced by mixing with dibasic sodium phosphate, e.g. 0.0 05M buffer 1 pH 7.3 can be used.

When used, the soluble salt or buffer is added in an extraction effective amount, preferably crude konjac. It should be present in an amount of 5 to 50 wt% based on the weight of the liquid.

In another embodiment, an insoluble salt can be used as the extractant. For example, phosphoric acid dicalcium, aluminum sulfate, calcium phosphate, magnesium phosphate, etc. Among them, aluminum sulfate (alum) is preferred. If desired, these Salts of can be formed in situ through an extraction process by well known means. When to use The insoluble salt or extraction effective amount, preferably 1% based on the weight of the crude konjac. -25 (more preferably 5-15) wt% should be present.

An organic solvent containing a lower alcohol such as isopropyl alcohol was used in Example 15. It has also been shown that it can be used for this purpose, as shown in . use When the organic solvent is used, the organic solvent should be present in an extraction effective amount.

The use of only boiling water (at 65-100°C) was carried out under conditions of turbidity (Example 47). ), so it can be used as an extractant, although it is not particularly satisfactory. .

Certain uses of transparent konnyaku When blending into food products or industrial compositions, the amount of clear konjac used is It will change naturally. And this amount is based on the well-known usage of crude konnyaku. can be determined without the skill of a person skilled in the art. For example, in food products, the amount is 0.1 wt%. Can be used in cake-like mixtures. In contrast, film, oil drilling fluid (oil, drilling, fluids), and industrial products such as paints. Amounts in the range of 1-2% and higher can be used in applications.

Transparent glucose of the present invention in food products such as bread products, dessert gels and meats Applications of mannan provide improved superior properties. For example, for cake-like fresh bread The addition of refined substances also improves the texture, dampness and puffiness of the final product. Tarasu.

In its gel-like form, the product can be used as a food or food ingredient, as a film former and as a seed. useful for various biotechnological applications.

Viscosity reduction According to another aspect of the invention, the normally high viscosity of konjac gel can be reduced by The extraction process can be improved by treating the nanonan with various reagents or other means before the extraction process. The reduction may be reduced throughout the extraction process or after the extraction process, as desired. viscosity values can also be obtained. Such gels of reduced viscosity can be in biotechnology to produce gels and to control texture. Particularly useful in cosmetics. Besides, if the viscosity is before or during the extraction process Of course, if the subsequent sifting step is reduced to a normal The handling is greatly encouraged.

For use in biochemical or pharmaceutical applications and for ease of handling. , 1.096w of crude or clear konjac (typically 14,500cps) /v The viscosity of the aqueous sol is reduced by 50 cps to 3,500 cps by depolymerization. Means for reducing the can be used. The method is gamma radiation irradiation, gamma radiation such as actinic - Irradiation with radiation other than radiation; periodate - poronoid of oxidized polysaccharide Acid hydrolysis, including “Smith degradation” with reduction by hydride, followed by acid Mild hydrolysis CAAdvancesin Carbohydrate Che Mistry and Biochemistry, Academic Pr ess, New York, l 975. Volume 31. page 203 etseq, ); alkaline hydrolysis, catalytic hydrolysis, e.g. transition gold Iron EDTA (with or without the addition of metals) Hydrolysis using NTA (acid) or NTA (nitrilotriacetic acid), enzymatic hydrolysis: Canical shearing, dry or wet (aqueous sol) 80-120°C thermal depolymerization reactions, such as sustained heating, or other well known means. present invention Many well-known techniques and situations of polymer degradation useful in rElements of Polymer Degradation.

by Re1ch and 5tivala, McGraw Hill Boo K Co, New York, 197 1 J i. radiation The reduction in viscosity due to irradiation with radiation is 50 to 1200 kilorads (Krad) or more. The gamma rays generated from the This can be achieved by contacting Nyaku. In this case, as shown in the example below, As shown, there is a direct correlation between radiation dose and viscosity.

Alternatively, pyrolysis of crude or clear glucomannan can be used. For example, the desired glucomannan for the required time or number of days based on the degree of viscosity reduction. Satisfactory results may be obtained by heating the .

Among chemical means, acid decomposition, i.e. through acid extraction of crude konjac (sol) For example, contact with 5M MCI acid vapor. This produces a low viscosity konjac sol that can be passed through the mouth quickly.

This same method reduces the viscosity of the product collected after the sol is purified. It will be understood that it can also be used for. On the other hand, if the pH is 12.5 or higher In cases where the base reduces the viscosity, the resulting dry product may be discolored or is either insoluble in water or both, giving unsatisfactory results. arise. Additionally, the pH of the sol between 9 and 12.5 based on the base used is will gel immediately.

Low temperature melting gel/sol A heat-set gel formed from the transparent konjac sol of the present invention low temperature similar to the crude konnyaku described in the above-mentioned Japanese Patent Publication It was revealed that it exhibits melting characteristics. The big difference is that it is similar to transparent konjac sol. Similarly, low-melting transparent konnyaku gel forms a transparent liquid similar to a sol. be. Strong linear softening of the gel, especially when transparent konjac or when cooled from room temperature The gel strength is reduced. At 1OoC the gel showed visible softening and 5° C clearly becomes a liquid. These properties have not been measured. The liquid state is about O' Below that point, transparent konjac gradually freezes to a solid state (but only (not gel). By heating or warming a cooling liquid (5°C to 0°C) will reform into a gel.

Due to recooling, the reformation of the low-temperature molten sol has been observed at various times, and at some times the transparent core Nnyaku is converted from gel to liquid and back to gel at least three times.

Clear konjac is cooled to the freezing point or slightly below, then When brought to room temperature, it forms a clear, water-insoluble, spongy expanse. Form a certain mass. Is this decrease caused by crude konnyaku? It is known that the spongy lumps formed by transparent konnyaku are extremely Light in color and free of proteins or other impurities found in crude konjac It does not have the characteristic odor of crude konnyaku. For this reason, transparent containers The spongy mass produced from Nyaku can be used in various medical applications such as transplantation and drug carriers. scientific applications and bioindustrial applications where the absence of such contaminants is required. Appropriate for

Transparent konnyaku gel has this "cold-melt" characteristic. This is done under certain controlled conditions, primarily pH 1 and is formed under controlled conditions with respect to the time to form a gel at any given temperature. It is very important to. Other factors that influence a gel's ability to melt at low temperatures are ions Including content and ionic type. For example, when the glucomannan concentration increases, the gel was found to melt more slowly. However, for some reason, the transparent gel in the gel The concentration of lucomannan is not critical and is between 0°01 and 10 (preferably between 1 and 5). wt%.

sol obtained from transparent glucomannan to form a gel with low melting properties. The pH of the water is preferably 65~+! Aluminum at a temperature of 3°C until a gel is formed. It is prepared by heating with potash. This pH is NH4OH, 2Co to NaO ratio, or a mixture thereof, of which NH, OH is preferred. Desirably 96 to 12.3, preferably 10 to Should be 11.5. Additionally, low pH values within this alkaline range It was found that the gel formed then melted into a sol more quickly.

On top of that, buffer the pH of any gels that are formed at high pH values. 8 to 8 without adversely affecting the low-temperature melting properties of the gel by solution treatment. It is possible to lower the pH to 9 or below. Low temperature melting properties long gel It has been revealed that there is a negative effect on the aging time. Therefore, for short periods of time at high temperatures Gel formation is preferred over prolonged periods at low temperatures.

Alternatively, if the gel production is carried out under retort conditions, i.e. with high indenter temperatures, It was revealed that gels can be produced at acidic pH if

For example, the gel is made from transparent konjac sol with a pH of 6.7 and a temperature of 1130 °C and 3 It can be formed under conditions of 0 psi (approximately 2 atmospheres or 2.1 kg5/cm2).

One commonly used method of gelation is to use a 1% sol of transparent glucomannan. Add NH4OH until the desired pH of 1, i.e. 11.2, is achieved and this alkali 5 to 60 minutes (preferably 50 to 120°C) based on the amount used. (preferably at a temperature of 80-90°C for 20-30 minutes) until a gel is formed. Heat and then cool the gel in an ice bath until it dissolves. It will be. The molten material is then allowed to gel until it begins to develop again (generally (begins to develop at temperatures of 6°C and above), re-forms into a gel by heating It is possible.

In some cases, when used as a base, NH,OH or Visible spherical particles are formed in the liquid, and this may be due to further purification of the liquid. It has been shown that it can be removed by mouth-washing for this purpose. As a theoretical explanation Therefore, the outer surface of these coacervate-like particles is present in konjac fine powder. Contains water-soluble starch.

Subject to these removals as described herein, the transparent konjac formed from the transparent konjac of the present invention The gels produced consistently have low melting properties, i.e., the gels melt under ambient pressure below 5°C and at 0°C. C indicates melting when exposed to reduced temperatures. Moshi transparent konnyaku If you want to maintain a low temperature without melting the gel, use this low melting characteristic. The properties are non-low-melting hydrocolloids, mainly xanthan, carragitin, and agaro. by mixtures of gums such as hydrides (particularly agarose) or mixtures of these. can be avoided. In some cases, clear konjac may be used without adding alkali. It will co-gel with hydrocolloids. Other hydrocolloids are As is known in the art, the addition of alkali, heating, and certain on or similar methods may be required.

At certain low temperatures, the gas in the alkali-set get The presence of silicates may cause a reverse transition from the sponge-like structure of the gel to a transparent elastic structure. It was also revealed that he was cheating.

In addition to hydrocolloids, certain or higher concentrations of ionic compounds , salts such as NaCl, or are also used to prevent low temperature melting of gels. It can be done. In one other case, changing low temperature melting properties or the addition of these substances may can be achieved by selective basicity.

Amount of hydrocolloid or ionic compound required to prevent low melting of the gel can be changed significantly. For example, 10% by weight of NaC], a rapidly ionic compound, The addition of prevents low temperature melting. Alternatively, hydrocolloids or When the weight ratio of glucomannan to hydrocolloid in the gel is about 101-110 can vary between. For example, Glucoman is based on the weight of konnyaku in Kel. Similarly, add 1 part by weight of caranthin or xanthan to 3 parts by weight of naan. Prevents low temperature melting. However, if we change the properties of the gel at another α, If desired, the amounts of these additives used should be adjusted accordingly. It is possible to increase the

The molten clear konjac can be harvested in its liquid state and stored or processed. too If desired, it is generally held at a temperature below 5°C (at ambient pressure) for an extended period of time. the In the chilled melt state, the gel is extremely stable at these temperatures.

As a convenience, it is more preferably used in the form of a gel at a suitable pH value. Storage up to facilitates its handling.

The unique properties of this low-melting sol make it suitable for various applications, e.g. as a buffer for electrophoresis. in biotechnology or as a pharmaceutical dispersion medium, e.g. for storage or administration purposes. The drug is incorporated into a molten sol that can be hardened by heating the gel. This makes this sol extremely useful in pharmaceutical technology.

Food and beverages that are normally served cold must be kept cold until served. These structures and strong firmness can be improved by making and/or storing gel-containing foods. It is possible to have. For example, frozen desserts or the like. Or vice versa For example, you can add a low-melt sol to an easily handled liquid food product and then gel it at room temperature. These structures and strong hardness can be obtained by curing and curing.

In a further embodiment, the low-temperature melting sol is celnoypcellized, i.e. locally It can be used to release drugs. That is, in this sol, a water-soluble or water-suspended drug, For example, by combining anesthetics, antibiotics, preservatives or the like, this sol When applied to a cut or burn, it dries and slowly releases an effective dose of the drug into the affected area. Form a thin layer to release.

Example 1-21 Extractant A series of examples shows the extraction of crude konjac powder with aqueous solutions using various extractants. The production of transparent konjac products according to the present invention was demonstrated by the method described above. So In each case (Example 2-21), it was indicated that different extractants were used. Except for this, the method of Example 1 was followed. It was also dried and ground as shown in Example 1. After producing the sol of the product, the viscosity is measured and the viscosity is measured to determine whether the sol is soluble or insoluble. Both aqueous extraction at various pH, including various salts, chelating reagents, ion exchange Using resin etc. The time, temperature, concentration and amount of konnyaku are determined by these extraction operations. It was the same. The filtration aid used varied (0-100g ); if no filter aid was used, pass the sample through a “cuno” type filter. It was filtered using a cloth. This is done to speed up the operation and remove any undissolved sacs. It was effective. Use filter aids if necessary to remove remaining smaller microscopic particles. could be easily removed. Washing of the coagulum (with isopropyl alcohol) Cleaning and recovery shall be carried out in all cases except with the usual modifications adapted to the particular case. The example was the same as the method of Example 1.

As described in more detail below, in Examples 22-42, the corresponding Example 1 A gel was obtained by adding an alkali to the sol of -21. Place the gel in a crystallization dish and place it in a warm bath. and heated. The strength of the gel is immediately measured and the solubility of the gel can be observed. I placed it directly in a water bath so that it would stay warm. This dissolved gel was incubated overnight at room temperature. , the ability of regelation was observed. The results of these examples are summarized in the table ■ below. This is an indication.

Example 1 Hot water method 600ml of distilled water was heated to 75-78°C in a hot bath. 6g coarse konnyaku was added and stirred for 60 minutes while maintaining this temperature range. Compatible shoe filter cloth Connect it to a liter pressurized filtration pump using a chisel, and without overflowing with hot water. added. Pour the sample into a filter pump and add 1 Ops i (0,7 kg/ cm2) for 10 minutes. Gradually increase the pressure to 15.25.40.45psi (1 , 05, 1, 75, 2, 8, and 3.15’g/cm2), and the respective The pressure was maintained for 15 minutes. The total filtration time was 70 minutes and 430ml of filtrate was collected. Ta. The filtrate was coagulated using twice as much 99% isopropyl alcohol (IPA). and left it for 60 minutes. The coagulum was collected by vacuum filtration on a polyester cloth and compressed. Dry and transfer into twice the volume of 60% IA for 30 minutes. Collect the coagulum again and Treated with 99% IPA and incubated overnight (14 hours) at 55°C in forced hot ozone. Dry.

The sample weight was 3.57 g (59.5% yield), and the sample weight was 3.57 g (59.5% yield). ground through a standard sieve). Suspend 2g of this substance in 200ml of distilled water. , was used to prepare 200 ml of a 1% by weight aqueous sol. This thing is a hot water bath (~ 80° C.) and stirred with an overhead mixer for 45-60 minutes. sun The pull was poured into a 250 ml vertical beaker and cooled to 25°C. The consistency is Lutskfi Luto Digital Viscometer CBbrookfield D eBital Viscometer, model LDTDV-II) 18. 400cps (sl) indle #2. 0. 3 rpm, 25°C 191,7% maximum).

Example 2 (pH2 method) The following examples demonstrate the reduction of the viscosity of crude konnyaku at low pH using acids; Explain extraction combinations. This effect reduces the viscosity before the extraction is complete. It was to make it possible.

The process was generally the same as that of Example 1, but the following modified method was used. before heating Aqueous solution 1. The pH was adjusted to 2 using OM HCI. Filtration does not require pressure , quickly <550 ml of filtrate was passed through the filter bomb in 8 minutes. initial coagulation or beginning The time from solidification to completion was shortened to 45 minutes, and solidification was achieved using 99% IPA. This process took 15 minutes. The yield of this process is transparent glucomannan4. 22g (70.3%) and 1% consistency is 57. 3cps (Brook field LDTDV-I [5pindle #1゜60rpm, 25℃, 5 7% (highest value).

Examples 3 and 4 describe aqueous extractions as in Example 2, except that In 4 cases, a base was used. This process is very effective at pH 7 and at pH 10. The higher the pH, the more the filtration process will be inhibited due to partial gelation of the product. You will notice that the result is

Example 3: (pH 7 method) The process described in Example 2 was repeated using pH 7. Adjust the pH as necessary. amount of 0. IM NaOH and 1. Adjusted using OHCI.

250ml of filtrate was collected over 95 minutes and processed. The dried sample was prepared as follows: 1. The weight was 18g, 30.196, and the consistency was 14,200.

Example 4: (Method for pH'IO) The same method as in Example 2 was used to adjust pH10 (1 Aqueous extraction was performed using an aqueous solution adjusted to . Filtration is easy ( Only 150ml of filtrate was collected (filtration time and pressure are (see table below).

Partially gelled. A small amount of filtrate was discarded.

Examples 5 and 6 describe processes using two types of chelating reagents.

Example 5 (Hexametaphosphate, HMP method) Sodium hexameta Phosphate (3g, 0.5% W/V) was added to the hot water before adding the konjac. I got it. In this extraction, 50 g of Seratom Dia l-phyto (Ce) was added before filtration. latom diatomite, Eagle-Picher 1Ohio Province, Soncinaci City)/It superadjuvant was mixed into the sample. 109 minutes later, 400 The filtrate of m1 was collected and processed (see below for details). After drying, 3゜62g (6 0,396 yield) was ground and used to prepare the 196 sol.

The viscosity of this material is 3.010 cps and the gel strength is 124 g/cm2. there were. It was also "cold soluble" and regelled upon heating.

Example 6: (Ethylenediaminetetraacetic acid-EDTA method) Same operation as Example 5 0.6 g (0.1% W/V) of hexametaphosphate. Another extraction of crude konjac black g was carried out using disodium EDTA. 12 After 0.20 minutes, a filtrate of 300% was obtained. Yield after coagulation and drying: 1.91 g, 31. It was 9%. The viscosity of the 1% sol was 19,700 cps.

Examples 7-10 again use the general procedure of Example 1 and use various soluble salts or An example using a mixture of these will be explained.

Example 7: (Use of neutral salt) 3g of NaCl was added before adding the konnyaku. The amount of filter aid is reduced to 25g. I did it. 500 ml of filtrate was collected in 100 minutes and processed as above. For this extraction More transparent konjac glucomannan 2. 39g (39°9%) was obtained. The consistency was 21,900 cps.

Example 8. (Use of basic salt) Add 3g (0.5% W/V) of sodium acetate to the water before adding the konnyaku. Ta. The filtrate (350 ml obtained in 120 minutes) was processed, dried and ground. 3. A 1% sol was prepared using 674 (61.2% yield).

The consistency was 4,660 cps.

Examples 9 and 10 (use of acidic salts) CaC1,-2820 was used in the other two extraction examples; 3. 97g (0°59 6w/vCaC12). In the first example (Example 9), the filter aid Seratomdyat Celatom diatomite was used, or filtration is difficult. It was.

After 50 ml of filtrate was obtained in 200 minutes, further experiments were abandoned.

In the second example (Example 10) no filter aid was used. 525m after 43 minutes A filtrate of 1 was obtained and processed. Yield of dry product is 4.06g (677%), 1% The viscosity of the sol was 16,200 cps.

Example 11 (Use of phosphate buffer) 39 ml of 0.2M sodium phosphate basic and 61 ml of 0.2M di-dical A 0.2M phosphate buffer (pH 7.3) was prepared by mixing sodium phosphate. child A portion of the solution, 25ml, was diluted to make 1 liter, and the final solution was 0.005M! 1 It was set as 1 degree. Crude konnyaku black was extracted using this solution as described above. 68 minutes A further 250 ml of filtrate was obtained, treated and dried. This sample (1,957g; 3 2.9% yield) and 1% consistency was 1,380 cps.

In the following Examples (12-1, 4), ion exchange resin and polar organic solvent (Example 15) Aqueous extraction of crude konjac using konjac will be explained. This will be shown in Examples 33-35. However, the product of Example +2-14 was not cold soluble.

This may be due to ionic binding and/or coagulation effects.

Example 12 (Cation ion exchange resin - use of carboxymethyl cellulose) (A) 0.6 g of water-soluble carboxymethylcellulose (C MC) (10% relative to konjac) was added before adding konjac. filtration supplement 500 m1 at 5 ps i (0.35 kg/cm2) for 10 minutes without using any auxiliary agent. A filtrate was obtained. After treatment and drying, 4.45 g (74,]%) of product was obtained. consistency It was +5,700 cps.

(B) 0.6 g of CMC (Whatman Rapo Sales) in 600 ml of deionized water : Hills Polo, Oregon) was added before the konjac. Do not use filter aids It was. After 32 minutes, increase the pressure to 20 ps i (1.4 kg/cm2) and A filtrate of ml was obtained. After processing and drying, 3.90 g (65.1%) of product was obtained. 1 % consistency was 15,000 cps and was not cold soluble.

(C) 600 ml of deionized water. 6g0) Insoluble fibrous CMC23 (wax) Toman Lab Sales; Hills Polo, Oregon) was added before the konjac. . No filter aid was used. After 23 minutes, the pressure was increased to 10 psi (0.7 kg/cm ”) to obtain 575 ml of filtrate. After processing and drying, 4.06 g (67.6%) The product was obtained. The consistency of 1% is 17,900 cps and once it becomes gel-like and was not cold soluble.

Example 13 (anion ion exchange resin diethylaminoethylcellulose).

(using DEAE) 0.6 g of DEAE cellulose was used for extraction. Collect 500ml of filtrate after 35 minutes. It was then processed. dried sample; 3. 79g (63,1%) is 1% The consistency was 16,100 cps.

Example 14 (Anion ion exchange resin diethyl [2-hydroxypropyl coamyl) (using noethyl cellulose, QAE) 0.6 g of QAE cellulose before extraction. added. Filtration was not as good using DEAE. 300m1 in 74 minutes The filtrate was collected and the yield after treatment was 1.96 g (32.6%). this thing The 1% consistency was 14,000 cps.

Example 15 (using 20% isopropyl alcohol) 452 g of crude konnyaku 148 ml of 99% isopropyl alcohol in ml of distilled water (2096 w/w ) was extracted using the method described above. After 90 minutes of filtration, 275 ml of filtration The liquid was collected and processed. 1. 25g (20.9%) was recovered, the consistency of which was II , 800 cps.

In Examples 16-21, insoluble salts are used to absorb impurities in konnyaku; Among them, in Examples 18-21, salts were formed in the reaction solution. Modifying Example 18 Introducing the filtration aid in a manner similar to that shown in Example 19 resulted in a more transparent product. You will see that you get something. In a modified method of Example 20, the filter aid In Example 21, in which no filtrate was used, less filtrate was obtained.

Example +6 (Using dicalcium phosphate) 06g of dicalcium phosphate 10% of konnyaku) was used by adding it before adding konnyaku. . After “cooking,” add 15 g of filter aid and filter for 10 minutes. psi (1,75 kg/cm2), then 40 ps i (2,8 k g/cm2). During this time only 50ml of filtrate was obtained, which was the sample Remove the filtrate from the filter cylinder, pool a small amount of filtrate and add 85g of filtrate. Auxiliary agents were mixed. Filtration was carried out for 120 minutes, during which time 250 ml of filtrate was collected and processed. . This step yielded 1.65 g (27.4%) of product. The viscosity of this substance is 1%. Consistency is measured using a Plutzfilt viscometer LTVDV-[model N011 spindle] It was measured at 4,410 cps.

Example + 7 (using aluminum sulfate) 0.6g of aluminum sulfate was Added before Nyaku. After 35 minutes, 500 ml of filtrate was collected and processed. dry sun Pull 3. 15g (52.6%) was ground to prepare 1% sol and gel. consistency It was 2,170 cps.

Example 18 (using aluminum sulfate, reaction in the same container) 600 ml of distilled water 0.747 g of monobasic sulfuric acid and 0.847 g of aluminum chloride. Add the ingredients without stirring. No filtration aid was used. 11 minutes later 5 ps i ( 0.35 kg/cm2) and 500 ml of filtrate was collected. Treat this material and dry it. Dry and grind to obtain 4.20 g (70%) of product. The consistency of 1% of this substance is 1 ．． It was 720 cps.

Example 19 (using aluminum sulfate, reaction in the same container) The above extraction process was reduced. I changed it and repeated it. In this case, 0.526 g of aluminum chloride (anhydrous A　I　CI　2 as 0.291g) and 0.310g monobasic sodium sulfate I used the system. 25g of filter aid was added before further filtration. 45 in 98 minutes 0 ml of clear filtrate was obtained and processed.

After drying, 3.65 g (60.9%) of the material was ground and used to prepare a 1% sol. there was. The consistency of the very clear sol was 1.150 cps.

Example 20 (dicalcium phosphate, reaction in the same container) 0.694 g of dicalcium chloride Shuum and 0.567 g of monobasic sodium phosphate were used for this extraction. again , no filter aid was used. 340 ml of filtrate was collected and treated, 2.90 g (48.3%) of product was obtained. The consistency of 1% of this sample is 17,000c There was a ps.

Example 21 (Dicalsodium phosphate, reaction in the same container) Repeat the above extraction did. The amount of CaCIt・2H20 is 0.382g (0,288g anhydrous CaCl 2; 2.6xlO-'mol), and NaH2PO, was reduced to 0.312g ( The volume was reduced to 2,6XIO-"mol). Filter aid (25g) was added before filtration. Processed slowly. After 14,747 minutes, 150 filtrate was collected. The extraction will be released at this point. Abandoned.

Example 22-42 Formation of gel and cold melt Clear konnyaku green of Example 1-21 A series of experiments in which each product was gelled and the gel strength and cold meltability were subsequently determined. was carried out in Example 22-42. The results are shown in Spring ■ below.

It is understood that three of the sols tested, Examples 33-35, did not cold melt. It will be. However, generally speaking, most of the gel products of the present invention are cold meltable. You will find out something.

Example 22 To 200 ml of the 1% sol of the product of Example 1 was added 5M NH with stirring.

OH (1 ml base/25 ml solution) was added to bring the pH to about 1O15. The sol Heated in a hot water bath at 85°C for 60 minutes. During this time a gel formed. The gel immediately The gel strength was measured and then placed on an ice bath until it reached 4°C. As shown in table ■ The gel dissolved in formed a substantially transparent sol. When heated again, it becomes a satisfactory gel. was reformed and thermally stable.

Example 23-42 Following the steps of Example 22, but substituting Examples 2-21 for the starting materials of Example 22. When the experiment was carried out using the product as the starting material, the corresponding gel was converted. the The gel strength and cold melt properties of the gels are also shown in Table 1.

B Examples 43-47 Using aluminum sulfate as an extraction reagent A series of further Examples (Examples 43-45) show that the transparency, nitrogen content, and viscosity of konnyaku powder are According to the process of the present invention showing the effect of the related extraction reagent aluminum sulfate It was conducted. The results of these Examples are shown in Table 3 along with Comparative Examples 46 and 47. It is.

In each of Examples 43-45, following only the specific conditions indicated in the footnotes, 7g konjac powder (trademark: NUTRICOL, manufactured by FMC), 22g perlite Filter aid (FW-40, manufactured by Chemrock), aluminum sulfate (amounts are in the table) ) and 0.25 ml of 3M NaOH were added to 800 ml of water (0.84 % konnyaku). The mixture was heated to 90 °C for 20 min with stirring and Use a pressure hot water filtration cylinder in the range of 0 ps i (0.7-2.8 kg/cm") Then, add this filtrate to 3 times the amount of isopropyl alcohol to coagulate it. Ta.

The coagulum was dried overnight at 60°C in a forced trough dryer to obtain a hard cake; The sample was ground using a No. 40 sieve (American standard sieve) (420 microns). two The dried specific product was made into a lwt96 aqueous sol. Then the consistency and turbidity were measured, and the results are shown in Table ■.

Comparative Example 46: Commercially available konjac powder was dissolved in water without adding a filter aid. , its consistency and turbidity were measured. Comparative Example 47: Dissolved konnyaku was treated according to the method of the invention. However, aluminum sulfate or NaOH is added. There wasn't.

Table ■ Effect of aluminum sulfate on consistency and turbidity 11'a) 1% by weight b) 1% by weight, 25°C, 12 rpm (Brookfield viscous needle, LVTD- Measured with Type II (No, 4 spindles) C) Turbidity based on formalin standard turbidity ( T, U, ), measured with a Macbeth hydrometer, turbidity was first measured with a Fisher spectrometer. Measurements were made using a Fuller Earth stamp. Then the Fischer unit The formacin standard method is used to investigate correlations by comparing two types of standard materials. I got it.

Finally, the correlation coefficient was calculated instead of using the Maches/Formalin standard method (Table ■ Footnote ( b) see) d) Unprocessed konnyaku flour e) Treatment with hot water (15 minutes, 85°C), but do not use aluminum sulfate or NaOH. Not used From the above, the appropriate amount of aluminum sulfate used as shown in Example 44 The consistency of konnyaku, which is transparent due to the will be maintained at a very high level. Also, the reconstituted transparent coat according to the present invention The turbidity of Nnyaku is as follows: This is significantly lower than the crude konnyaku sol. aluminum sulfate The process of treating with hot water without adding any sol (heating) may result in some turbidity of the reconstituted sol. (Example 47). Aluminum sulfate as shown in Example 44 At the most suitable concentration of konnyaku, the consistency of the reconstituted clear konjac is There was a surprising but also desirable increase compared to that of Examples 46 and 47.

The following example shows a scaled-up process for clearing aluminum sulfate. It is.

Example 48 225 gallon (approximately 852 liters) stainless steel tank with 140 gallons (530 liters) of ice water, 214 g of aluminum sulphate (4.7%) and 162 ml of 3M NaOH were added and heated to 70°C with direct steam. the 10 pounds (4536g of konnyaku powder and 31 bonds of FW40 filtration aid) The agents were mixed. The total volume is 160 gallons (606 lysotol) and contains 0.75% corn syrup. There was a W/V. The sample was heated to 85°C and held for 15 minutes. This service Recycle samples in a preheated 18-inch stainless steel filter press The mixture was filtered for 5 minutes.

Total filtration time was 60 minutes including hot water flush time. filter The liquid was 300 gallons (1°136 liters) of 8596 isopropyl alcohol (IPA). coagulated in tuturu). Clots are screened and pumped using bags. It was collected by washing and then compressed into small pieces. This coagulum contains 75 gallons of Washed/solidified by air stirring in 85% IPA for 2 hours. The coagulum is Clean and remove excess liquid by hand curing, followed by cooling at 55°C. Let dry overnight. A sample of 6.4 pounds (2.9 kg; yield 64%) is 0.03 It was ground using a 9 inch (2.4 mm) screen. Its nitrogenous content is 0 ．． 15%, and the turbidity of 1% is l I NTU (Nephelometric Turbidity Units).

Examples 49-53 Nigel and cold melt sol formation In the following examples, Examples The product of Example 48 was synthesized using various bases and reaction conditions according to the general method of Example 22. The molding and cold melting properties were tested.

Example 49 To 1.00 ml of a 1% aqueous solution of the product of Example 49 was added 4 ml of 5M with stirring. NH and OH were added to give I) HIo, 08. The sol was placed in a boiling water bath for 20 It was heated for a minute. After 7 minutes, a gel began to form. The gel dissolves and becomes substantially It was placed directly on a water bath until it became a clear sol. When heated again, a gel is formed satisfactorily. Ta.

Example 50 (base change) The same procedure as in Example 49 was carried out using another base instead of ammonium hydroxide. Ta. The base solution used was 5M NaOH, 5M KOH, and 10% 2CO, The density was adjusted slightly. A cold melting phenomenon was observed respectively. But starch The formation of spheres containing carbon was observed for cold-melting sols using ammonium hydroxide. It was noticed.

Example 51 (Change in heating time) Three 50g 1% by weight clear konjac samples were prepared as in Example 49. Prepared. 5M NH40H was added to each sample while stirring. child They were placed in a boiling water bath. Gelation occurred after 7 minutes. 20 minute intervals (20, 40 , 60 minutes), one beaker was removed. The gel was cooled to room temperature and placed in a water bath.

All three gels were cold melt.

Example 52 (1) Change in H) A. Six 50 g 1% water aqueous clear conics were prepared according to Example 48.

1. pH of one of the following using ON NaOH and 0.1N HCI (back titration) Adjusted to: 8.5+9.0. 9.5.　10.0゜105 and 11.0゜ All were placed in a boiling water bath for 20 minutes. The first pF (value is 10.10.5 ．． Samples 1 and 11 gelled and were removed after 20 minutes to cool to room temperature.

The low pH samples did not gel in the condensate bath for one hour. The three gels are Placed on a water bath. The gel dissolved completely and quickly at pH 10. pH10.5 The gel gradually and partially dissolved. The last gel (p)Tl! , 0) is dissolved It turned out to be quite soft.

B. A series of 50-g 1% aqueous clear konnylon as in Example 49. The milk was prepared. The first four parts are all 25. 50°75, and 1 Add 5M NH4OH to the 00 microliters in the beaker. I got it. For the rest, an increase of 100 microliters (up to 2.1 m 1). pH was checked with a pH meter.

I also checked visually using a universal indicator. Those Kel are 20 Heat for 1 minute, cool to room temperature and stand at room temperature overnight (16 hours). All beakers are water It was placed over the bath and monitored. The dissolution pH of the dough was rechecked.

The selected results are listed in the table below.

Table IV (a) A series of experiments were conducted using 5M NaOH instead of NH,OH.

Table ■(b) The following example describes the preparation of gels under cold tort conditions and low pH.

Example 53 For this example, 800 ml of 296 transparent konjac sol from Example 48 was adjusted to pH It was prepared by diffusing and dissolving in 6,6 phosphate buffer.

This substance was packed all at once into aluminum cans and sealed. this can Place in a pressure cooker and heat at 130°C, 130psi (2.1kg/cm2) for 6 hours. Heated for 0 minutes. After cooling, the can was opened. A soft gel was formed. take a few pieces Drain and transfer to a small beaker, then chill on ice. The gel completely melts, then a hot water bath (~ A much firmer gel regenerated upon heating for 25 minutes at 90°C.

Example 54 (Stability of Gels and Cold Melt Sols) Following the steps of Example 48, eight 100-g of 1% by weight clear konnyaku was prepared. The following amounts of 5M NH4 OH was added to the sample in layers (resulting OpH values in parentheses): 1 ml (pH o, 39), 2 ml (pH 10, 58), 3 ml (pHIo, 78) and 4 ml (pHIo, 90).

All eight samples were heated in a boiling water bath for 20 minutes. 4 of these gels, One piece of each level was wrapped in plastic wrap and left at room temperature for 10 days.

The other four gels were placed in a water bath after cooling. pHIo, 39 and 10.58 Only the formed gel melted. The two gels at pH 1O, 78 and 10°90 are soft. It got dark or didn't melt. All 4 pieces are wrapped in plastic wrap and kept in the refrigerator at 9°C. Stored.

Samples stored in the refrigerator were tested after 8 days. The two lower pH parts are still in solution. It was a solved model. while the two higher pH samples remained unchanged (soft gel).

Small amounts of the two cold melt samples were placed in test tubes and placed in a boiling water bath for 10 minutes.

Both formed a gel, and this gel did not remelt.

Gels stored at room temperature were placed on a water bath to check meltability. two lower pH The gel was completely melted. The remaining gel at pHHIO 278 and 10.90 is substantially It wasn't completely melted.

The following example shows that the viscosity of transparent konjac according to the present invention is reduced by light irradiation. Describes additional methods for adding

Examples 55-63 (Reduction of viscosity by light irradiation) Example 48 of 6 50 g parts The clear konnyaku obtained in the step 1 and the crude powder washed with 100 g of alcohol Nnyaku samples were irradiated with gamma light (Cobalt 60).

The sol (200 ml) of each sample was the same as the original undisintegrated sample. The sample was heated in a water bath and stirred for 60 minutes using a rad mixer. Therefore, it was prepared. Pour these samples into a 250m1 tall beaker. and cooled to room temperature. The consistency is Brookfield Digital consistency as above It was measured by courage. A portion (50 ml) of each sample was added to 2 ml of 5M NH. , OH and heated in a boiling water bath for 20 minutes to check the kelization ability. gelling Subsequently, the gel was placed on ice to check cold meltability. of each exam The results are shown in Table ■ below.

Table■ Example 64-82 (Nitrogen and suspended substances contained in transparent konnyaku) Previous example Selected materials obtained from Examples 64-74). These results are based on crude konjac flour (Examples 76 and 78-82). ) and the product of the process described in U.S. Pat. No. 3,928.322 (Example 75), and “Electrophoresis” by Ogasawara et al. with a slight modification of the U.S. patent. on Konjac Mannan Gel'', 5eibutsu Butts Compound described in uri, 31, pp155-158 (1987) (Example 77) The nitrogen content of the water was compared with the degree and turbidity levels. The full results of these tests are in the table below. Figure 1 shows the nitrogen value based on the dry weight of the product. Ru. As shown in the footnote (t) in the table, the turbidity values were initially Measure the formazan standard reagent using a spectral measuring instrument, type ■ (manufactured by Fischer Science). I used the values measured using the Macbeth color and then converted them to Macbeth color values. This conversion is as follows. The correlation study shown below was done: turbidity value 5-11 of 40 ONTUs Prepare Lumazan standard and transmittance at 96 on both Macbeth and Fischer instruments was measured. In addition, konnyakuji samples (3 coarse and 2 transparent samples), 1%, Prepared at concentrations of 0.5%, 0.25%, and 0°125% and measured with both instruments. did. The data obtained from these measurements (% transmittance) is relative to those turbidity values. Plots were made and correlation coefficients were calculated.

The process of U.S. Patent No. 3,928,322-Sugyama (Example 75) is as follows: It was carried out in ! , Konnyaku powder (89-9607) 2.5g in 500ml (0,596W /V) in tap water and heated at ~55-60°C for 2 hours.

2 Pass this sol through a 115 mesh (125 micron) and then a 270 mesh I peeked at the junk through Yu's metal screen.

3. This sol is filtered using a medium porosity glass filter (Pyrex 150m1. ASTMIO-15) or 0.2 micron filter, so I replaced it with Heat to 90°C and cut into pieces with a diameter of 14-1 inches (35.6-3°54 cm). Two passes were made through a bed of tightly packed glass wool. 300ml of filtrate is clear , no particles were present.

4 The filtrate was placed in a dialysis tube (Spectra/Por, 47, 7 m m, molecular weight cut 12 → 14,000 daltons). The sample is 4 liters of water Dialysis was performed against water for 48 hours (water was changed after 24 hours).

5. The samples were then poured into two large crystallizers and frozen.

6. Each part is 0.6 Torre, 100°F (37,8°C).

It was freeze-dried for 12 hours.

7. The dried sample was very white and fluffy. The yield is 1.137g (4 5.5%). Because it was electrostatically charged, the sample could not be ground and a small amount of 2 Moisten with 0% isopropyl alcohol and then dry at 55°C for 3 hours.

The sample was then ground through a 40 meter screen.

8 The nitrogen content of the sample is 0.07%, and the turbidity of 1.0% is at river level 128. there were.

9. The time required for this step was 68 hours.

The Ogasawara process (Example 77) was carried out as follows.

1. Suspend 10g of crude konnyaku in 100ml of 50% ethanol and stir for 1 week. did.

2 This material was centrifuged and the pellet was added to 100 ml of 80% ethanol. In addition, the mixture was stirred for 3 weeks.

3 Centrifuge this again (400Orpm, 10 minutes), then 100ml Added to 100% (anhydrous) for 1 hour.

4 This sample was collected by vacuum filtration using #54 Whatman filter paper and heated at 60°C. It was dried in the oven for 6 hours.

5. 8.992g of material was recovered and used to prepare 178ml of 5% sol.

The substance was too viscous to handle. Diluted 10 times to 1780ml (0.5% w/v) and left overnight at room temperature.

6. This was centrifuged at 9500 rpm for 75 minutes.

7. The supernatant (1700 ml) was dialyzed against 10 times the volume of distilled water at room temperature for 3 days.

8. Remove the sample from the dialysis tube and centrifuge at 7500 rpm for 10 minutes. I let go.

9. Solidify half of the supernatant, pack the other half into a dialysis tube, and place it in a polyethylene tube. Wrapping with lene glycol (PEG20) and increasing its volume from 850ml to 450ml Shrunk.

10 This material was frozen at -75°C for 145 minutes and then heated to 0.1 Torr.

It was freeze-dried at +00'F (37.8°C) for 3 days.

11.2.19 g of lyophilized material was obtained. Very white and fluffy.

12. All samples should be thoroughly dried to remove moisture before testing. freeze drying The material became very foamy when the sol was prepared for measuring turbidity.

13 This process took a total of ~384 hours.

Table■ a) Centrifuge at 400 Or pm for 5 minutes before analysis b) Obtained values are initially Measurements were made with an isher spectrophotometer, then changed to a Maghes instrument, and both was obtained by plotting the values obtained from the correlation for the same sample measured using The decision was made based on the return line.

C) Product dry weight basis d) 7K hex colorary computer (MacBeth Co1oreye C umpputer) series 1500, formalin standard used e) 05% solution liquid, turbidity The above results show that the product according to the invention (implemented) has lower both nitrogen source content and turbidity value. Compared to Examples 64-75), raw konnyaku, raw konnyaku, It will be seen that the values of the compounds are significantly higher.

The following examples demonstrate the cold melting properties of transparent gels according to the invention. This is an experiment on inhibiting the effect of

Example 8°3 (Addition of hydrocolloid rubber) Xanthan: 1% heat transmission of loog Transparent Conic Sol 33g 1% W/V Santan Sol (Keltrol T, Kel (manufactured by Co., Ltd.). This mixture, which immediately began to gel, was heated to dissolve the gel. Heated in a water bath. Once dissolved, two portions of 50 g were poured into a beaker. 2ml 5M NH,OH solution was added to each hot sample solution with stirring. one were placed in a boiling water bath for 20 minutes, and the others were cooled to room temperature. Both form a gel However, their appearance and quality were different. The heated gel is opaque and has some spots. The second part (not heated) was transparent and elastic. It was. The heated gel becomes transparent and elastic when placed in a water bath, or does not liquefy. There wasn't. Reheating this converted gel restores its original properties, i.e. opacity and It became spongy. When placed in a water bath again, it became transparent and elastic.

Carragetin = 33g of 1% w/v CIC laagenansol (caragetin salt, low viscosity Consistent Kappa type (manufactured by FMC) was mixed with 100 g of 1% clear konjac.

Add 5 ml of 5M NH,OH with stirring and incubate the sample for 20 minutes. It was hot. A soft opaque gel forms, which becomes transparent and very clear when placed in a water bath. It became an elastic gel but did not dissolve.

Agarose: 50g of 1% konnyaku sol and 16.7g of agarose sol (S eaKem LE agarose (manufactured by FMC) mixed with 1% 3:l transparent glue Prepare 5 x 67 g samples of comannan/agarose sol and boil 2 samples. I warmed it up by setting it in a boiling water bath for 20 minutes.

All five samples formed gels. These formed by heating with a base The gel was opaque and soft. Gel without heating (2 samples) The base was added to the sample, and the base was not added to the l sample), which was transparent and hard. Ta. When the heated gel is placed in a water bath, it either does not dissolve or turns into a clear hard gel. It was similar to the sample that was not heated.

Special Table Sen7-500727 (17) Procedural amendment February 17, 1994

Claims (1)

[Claims] 1. Substantially free of insoluble impurities, and containing more than 0.25 wt% of [A] about Nitrogen content up to 0.60 wt% and Formazine turbidity standards (Formazi Measured at a concentration of 1.0 w/v% using has an aqueous sol turbidity potential of 20 to 70 turbidity units when [B] Nitrogen content of 0.25 wt% or less in the continuum and Formazine turbidity standard The aqueous sol mixture has a turbidity of 20 to 100 turbidity units when measured at a concentration of 1.0 w/v% using Has turbidity potential A transparent konjac characterized by being made of glucomannan derived from konjac. 2. Aqueous sol with nitrogen content of 0.25 wt% or less and 20 to 100 turbidity units Transparent konjac according to claim 1, characterized by a turbidity potential. 3. Aqueous sol mixture with nitrogen content of 0.175 wt% or less and 20 to 70 turbidity units The transparent konjac according to claim 1, characterized by a turbidity potential. 4.Nitrogen content of 0.15 wt% or less and aqueous sol turbidity of 20-60 turbidity units The transparent konjac according to claim 1, characterized by a high potential. 5. Brookfield Viscometer model 1 w/v% concentration when measured using LVTDV-II at 25°C and 12 rpm. Claims characterized by an aqueous sol viscosity potential of 50 to 25,000 cps at The transparent konnyaku described in 1. 6. The transparent coat according to claim 5, characterized by a viscosity of 1.000 to 25,000 cps. Nnyaku. 7. Any one of claims 1, 2, 3, 4, 5 or 6, characterized in that it is made of an aqueous sol. A transparent konjac according to any one of the claims. 8. Any one of claims 1, 2, 3, 4, 5 or 6, characterized in that it is made of an aqueous sol. A transparent konjac according to any one of the claims. 9. from the mixture with at least one additional hydrocolloid before the gel is formed. 9. The transparent konjac according to claim 8. 10. Additional hydrocolloids in carrageenan, xanthan and agarose The transparent konjac according to claim 9, which is selected from the following. 11. The weight ratio of clear konjac to hydrocolloid in the gel mixture is between 0.1 and 10. The transparent konjac according to claim 10, wherein: 1. 12. The gel may consist of a mixture with at least an additional hydrocolloid before it is formed. characterized by Contains virtually no insoluble impurities; has a nitrogen content of 0.60 wt% or less; 20 turbidity units when measured at 1.0 w/v% concentration using Lumadine turbidity standard Konjac-derived glucomannan with lower aqueous sol turbidity potential? Transparent konnyaku. 13. Additional hydrocolloids are selected from carrageenan, xanthan, and agarose. The transparent konjac gel according to claim 12, characterized in that it is transparent. 14. The weight ratio of clear konjac to hydrocolloid in the mixture is about 0.1 to 10: 13. The transparent konjac gel according to claim 12, wherein the transparent konjac gel is 15. It is in the form of a smooth, water-insoluble, spongy, dimensionally stable mass. The transparent konjac according to claim 1, characterized by: 16. It is in the form of a smooth, water-insoluble, spongy, dimensionally stable mass. substantially free of insoluble impurities; containing 0.60 wt% or less nitrogen; and measured at a concentration of 1.0 w/v% using a Formadine turbidity standard. derived from konjac with an aqueous sol turbidity potential of less than 20 turbidity units when Transparent konnyaku made of glucomannan. At temperatures between 17.5°C and 0°C, it melts into a sol that passes through, but at temperatures above about 5°C, it melts. The transparent konjac according to claim 1, which is an aqueous low-melting gel. At temperatures between 18.5°C and 0°C, it melts into a sol that passes through, but at temperatures above about 5°C, it melts. Characterized by being an aqueous low-melting gel, substantially free of insoluble impurities: with a nitrogen content of less than 0.60 wt%; and using a Formadine turbidity standard. Aqueous sol turbidity potential of 20 turbidity units when measured at 1.0 w/v% concentration A transparent konjac made from glucomannan derived from konjac that has a balm. At temperatures between 18.5°C and 0°C, the sol melts, but at temperatures above 5°C, it melts. Characterized by being an aqueous low-melting gel, substantially free of insoluble impurities: with a nitrogen content of less than 0.60 wt%; and using a Formadine turbidity standard. The aqueous sol turbidity point is less than 20 turbidity units when measured at a concentration of 1.0 w/v%. Transparent konjac made from konjac-derived glucomannan with tensile properties. 19. The following continuous steps: [a] Making an aqueous sol of crude konnyaku containing insoluble impurities and glucomannan , [b] This crude konjac sol is treated with an effective extraction amount of a reagent capable of extracting insoluble impurities. contact, [c] insoluble impurities are precipitated and removed; [d] the remaining aqueous sol is treatment with a coagulant present in an amount to coagulate substantially all the glucomannan therein. [e] Remove glucomannan coagulum and dry to obtain dry transparent glucomannan. collect naan, A method for producing transparent konjac characterized by a process comprising: 20. chelating agent; soluble salt; insoluble salt; ion exchange agent; organic solvent; boiling water; or Claim 19 characterized in that the extractant is selected among the means for adjusting the pH of the sol. Method described. 21. The method according to claim 19, characterized in that the extractant is an insoluble salt. 22. Claim 19, wherein the coagulant is isopropyl alcohol. the method of. 23. It is characterized by treating the aqueous crude konjac fine powder with a viscosity reducing agent before extraction. 20. The method according to claim 19. 24. Treating the aqueous sol remaining after extraction with a viscosity reducer before treatment with a coagulant. 20. The method according to claim 19, characterized in that: 25. Purification of dry transparent glucomannan or its aqueous sol before purification with viscosity reducing agent 20. Process according to claim 19, characterized in that the treatment is carried out during or after purification. 26. A claim characterized in that the viscosity reducing agent is an acid simultaneously used as an extracting agent. The method according to claim 19. 27. 20. The method according to claim 19, wherein the viscosity reducing agent is gamma radiation. Law. 28. Cool the transparent konjac aqueous sol to freezing temperature or slightly lower temperature, then The sponge-like, dimensional stabilizer according to claim 15, characterized in that the sponge-like, dimensional stabilizer is cooled to room temperature by A method of producing a fixed mass. 29. Cool the transparent konjac aqueous sol to freezing temperature or lower, and then 17. The sponge-like, dimensionally stable material according to claim 16, wherein the sponge-like, dimensionally stable material is A method of producing a fixed mass. 30. The pH of the clear konjac aqueous sol was adjusted between approximately 9.6 and 12.3 before gel formation. 18. The method for producing a low melting gel according to claim 17, wherein the gel is adjusted to have a low melting temperature. 31. Claim 30, characterized in that the pH is adjusted between 10.0 and 11.5. Method described. 32. The gel formation is performed during heating at a temperature of 50-120°C for 5-60 minutes. 31. The method according to claim 30, characterized in that: 33. The gel formation is carried out during heating at a temperature of 80-90°C for 20-30 minutes. 32. A method according to claim 31, characterized in that: 34. Clear konjac aqueous sol was adjusted between 9.6 and 12.3 before gel formation. The method for producing a low melting gel according to claim 18. 35. Claim 34, characterized in that the pH is adjusted between 10.0 and 11.5. Method described. 36. The gel formation is carried out during heating at a temperature of 50-120°C for 5-60 minutes. 35. The method according to claim 34, characterized in that: 37. The gel formation is carried out during heating at a temperature of 80-90°C for 20-30 minutes. 36. A method according to claim 35, characterized in that: