CN1100275A - Processing method for instant high-viscosity Amorphophallus konjak powder - Google Patents
Processing method for instant high-viscosity Amorphophallus konjak powder Download PDFInfo
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- CN1100275A CN1100275A CN94107469A CN94107469A CN1100275A CN 1100275 A CN1100275 A CN 1100275A CN 94107469 A CN94107469 A CN 94107469A CN 94107469 A CN94107469 A CN 94107469A CN 1100275 A CN1100275 A CN 1100275A
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Abstract
Fresh konjak slices or konjak flour is mixed with 15-60% alcohol or isopropanol solution containing 0.01-0.1 M hydrochloride or acetic acid, ground in superfine mill and solid-liquid separated in centrifugal machine to obtain residue. The residue is then added with 50% alcohol or isopropanol in 1-3 times, reground and separated to obtain fine residue, which is dried at a temp. lower than 80 deg.C to obtain the product. The product of the present invention has high dextran content and low content of Pb, SO2 and other noxious material and is odorless and white.
Description
The present invention relates to the processing method of a kind of processing method of agricultural product, particularly konjaku flour, this method both had been fit to fresh Amorphophallus rivieri processing, was fit to the reprocessing of common konjaku powder again.The konjaku flour that the present invention produces is particularly suitable for the application of food and medicine industry.
Konjaku is the Araeceae herbaceos perennial, is unique crop that contains Glucomannan in a large number.Konjaku glucomannan is to pass through β-1 by D-glucose and D-mannose residue; 4 glycosidic bond combinations; the macromolecule complex polysaccharide that has the acetylation group on some glucose and the mannose residue; molecular weight up to 1,000,000 dalton about; have water-soluble; thickening; suspend; stable; gelling; make film; bonding; plastic; multifrequency nature such as lubricated; human body there is serum cholesterol-lowering; reducing blood lipid; hypoglycemic; fat-reducing; plurality kinds of health care medical functions such as defaecation; thereby can be widely used in food; medicine; probing; weaving; printing and dyeing; building; papermaking; in the industry such as chemical industry and fermentation, the most extensive in Applications in Food Industry especially.
Obtaining through refining of konjaku glucomannan (often being called konjaku powder) is the basic and crucial of its application, and the method for obtaining through refining Glucomannan from konjaku has two classes.One class is a dry method, promptly separate and the method for acquisition Glucomannan through pulverizing, grinding, selection by winnowing by konjaku dry plate or dried piece, the predominant methods that its method is obtained through refining for China's konjaku glucomannan at present, the outstanding defective of this method product is the impurity content height, reach more than 20%, raw meat bromine flavor is dense, dissolving is slow, and dissolving often reached more than 4 hours fully, and viscosity is low.Another kind of is wet method, and wet method is to be pulverized in liquid medium, grind through centrifugation, drying and other steps by fresh Amorphophallus rivieri again and obtain the method for konjaku glucomannan.The wet method of using in the production mainly adopts the ethanolic solution of higher concentration to make medium, though the effect that has removal of impurities to deodorize, not thorough and product does not have instant capacity.People (USP3 such as Noboru Sugiyama, 856,945) adopt the fresh Amorphophallus rivieri stem tuber in the presence of 10-100 times of water, to grind, centrifugal, remove insoluble matter, this solution carries out the flowing water dialysis again, removes inorganic salts, again in 20 ℃ of following freeze dryings, obtain konjaku glucomannan, this product purity height, but equipment complexity, cost are high, are unsuitable for industrial-scale production.Luo Xuegang (CN 1075974A) once disclosed the manufacture method of instant konjac glucomannan, in konjaku flour, add 8-10 times of water, stir, be squeezed into bar shaped, drying and dehydrating to water content is about 15% again, expanded under 170-200 ℃ again, pulverizing its puff at last becomes 100 purpose powder, because the konjaku glucomannan non-refractory, high temperature puffing has bigger damaging influence to its character, the konjaku powder obtains purifying in addition, so viscosity is very low, the viscosity of 1% konjac glucomannan solution has only 5Pa.S; In addition, oven dry again after konjaku flour has added big water gaging, energy consumption is big.
The object of the present invention is to provide a kind of not only can fresh Amorphophallus rivieri be raw material, but also can common konjaku flour or smart powder be raw material, easy and simple to handle, the processing method of lower-cost konjaku glucomannan, in this way processing can obtain that color is white, no stink, fine size, dissolving is fast, viscosity is high konjaku powder.
The processing method of a kind of instant high-viscosity Amorphophallus konjak powder of the present invention comprises the following steps:
(1) earlier the fresh Amorphophallus rivieri piece is put in 50-200ppm sodium sulfite or the solution of sodium bisulfite, adds 30-60% ethanol or the aqueous isopropanol that contains 0.01-0.1M hydrochloric acid or acetate solution by taro liquor ratio 1: 1-2 again.
The 15-40% ethanol that contains 0.01-0.1M hydrochloric acid or acetic acid or the aqueous isopropanol that perhaps utilize konjaku flour or konjaku powder to add 2-5 times of weight soak more than 20 minutes.
Perhaps konjaku flour or konjaku powder are added water 2-4 doubly, be placed on sharp freezing below-5 ℃, add 40% above ethanol or the aqueous isopropanol that 1-2 doubly contains 0.01-0.1M hydrochloric acid or acetic acid by scars weight after the deep colling.
(2) above-mentioned solution is sent in the Ultra-micro-grinding machine ground, its mill liquid slurry is poured into and is carried out Separation of Solid and Liquid in the centrifuge that is lined with the above filter bag of 200 orders.
(3) isolated filter residue adds 1-3 times of ethanol or the aqueous isopropanol more than 50% of weight again, putting into Ultra-micro-grinding machine grinds once again, utilize centrifuge to carry out Separation of Solid and Liquid again, at last filter residue is being not more than drying under 80 ℃ of conditions, promptly obtain the konjaku powder of odorless instant high-viscosity.
Narrate processing method respectively by raw material below:
1, raw material is the fresh Amorphophallus rivieri stem tuber:
The fresh Amorphophallus rivieri stem tuber is cleaned, peeling, in 50-200ppm sodium hydrogensulfite or sodium sulfite solution, soak to float and protect look, stripping and slicing or fragmentation, add 30-60% ethanol or the aqueous isopropanol that contains 0.01-0.1M hydrochloric acid or acetic acid by taro liquor ratio 1: 1-2 again, keep the Glucomannan particle neither to dissolve, the soft state of syneresis not again, in Ultra-micro-grinding machine, grind again, make the Glucomannan particle fragmentation become the decimillimeter level, amylum body becomes micron order or centimillimetre level, utilize centrifuge that its slurry is carried out Separation of Solid and Liquid, starch and soluble impurity are taken away with fluid separation applications, and Glucomannan stays in filter bag; It is further purified in order to make, refinement and be convenient to drying, adding 1-3 again is ethanol or aqueous isopropanol more than 50% to filter residue weight, concentration doubly, in Ultra-micro-grinding machine, grind once again, utilize centrifuge to carry out Separation of Solid and Liquid again, at last that its filter residue is dry in being not more than under 80 ℃ of conditions, promptly get odorless, instant, full-bodied konjaku powder.
2, raw material is common konjaku flour or konjaku powder:
(1) konjaku flour or konjaku powder doubly soak more than 20 minutes to the 15-40% ethanol that contains 0.01-0.1M hydrochloric acid or acetic acid or the aqueous isopropanol of its weight with 2-5 earlier, make the Glucomannan particle expand, soften on the one hand, lose original toughness, be the soluble impurity stripping on the other hand, pour in the Ultra-micro-grinding machine together with solvent again and grind, make the Glucomannan particle refinement, again its slurry is poured in the centrifuge that is lined with the above filter bag of 200 orders, carry out Separation of Solid and Liquid, filter residue is dry in being no more than under 80 ℃ of conditions.Filter residue is further purified in order to make, refinement and raising rate of drying, can add 1-3 more doubly to 50% above ethanol or aqueous isopropanol of filter residue weight, in Ultra-micro-grinding machine, grind once again, utilize centrifuge to carry out Separation of Solid and Liquid again, at last its filter residue is being no more than drying under 80 ℃ of conditions.
(2) konjaku flour or konjaku powder add water 2-4 doubly, mix thoroughly, make the imbibition of Glucomannan particle even, again in freezing in the low temperature below-5 ℃, add 40% above ethanol or the aqueous isopropanol that 1-2 doubly contains 0.01-0.1M hydrochloric acid or acetic acid by scars weight after the deep colling, in Ultra-micro-grinding machine, grind,, improved the thinning effect of Glucomannan particle owing to the effect of ice crystal.After treating that ice crystal melts fully, again its slurry is poured in the centrifuge that is lined with the above filter bag of 200 orders, carry out Separation of Solid and Liquid, filter residue mixes with its weight 1-3 50% above ethanol or aqueous isopropanol doubly again, in Ultra-micro-grinding machine, grind once again, utilize centrifuge to carry out Separation of Solid and Liquid again, at last its filter residue is being no more than drying under 80 ℃ of conditions.
Advantage of the present invention and good effect are as follows:
1, processing method removal of impurities of the present invention is more thorough, obtains product Glucomannan content and significantly improves.This has been on the one hand owing to successively adopted the ethanol or the aqueous isopropanol of low concentration and higher concentration, makes water-soluble and alcohol dissolubility impurity stripping and removing; On the other hand owing to used high-efficient grinding equipment, make that Glucomannan particle surface insoluble matter such as starch are also separated and remove.After measured, this method product processed Glucomannan content is higher more than 10% than the smart powder of dry method.
2, product granularity is thin, and dissolution velocity is fast.The konjaku powder granularity of general dry production is between the 40-80 order, and the smart powder degree of this method processing is then mainly between the 80-140 order.Because the minimizing and the particle of particle diameter are cellular, its surface area increases greatly, thereby has increased substantially the dissolution velocity of smart powder, than the fast 3-6 of the smart powder of dry method doubly.The smart powder of this method of 1% can become homogeneous suspension liquid in 10 minutes, swellable reached peak viscosity in 1 hour; And the smart powder of 1% dry method needed 40-60 minute just to become homogeneous suspension liquid, just reached peak viscosity through 3-6 hour swelling.
3, product does not have the stench flavor of konjaku.The stench flavor of konjaku is to influence the major reason that konjaku flour is used as food additives.Identify that through test its stench flavor composition is an alkaline organic.The present invention adopts the acidic ethanol of low concentration or isopropyl alcohol to make machining medium, with its alkaline matter effect salify, and increases its dissolubility, so can take away with fluid separation applications when Separation of Solid and Liquid.
4, product colour is white.Handle with sodium hydrogensulfite or sodium sulfite solution in the fresh Amorphophallus rivieri process, the effect that the brown stain of preventing is arranged, make machining medium with acidic ethanol or isopropyl alcohol subsequently, also help preventing brown stain, moreover, and its medium solution can make the coloring matter stripping, is removed with Separation of Solid and Liquid, so product colour is white.
5, reduce Pb in the product
2+, SO
2Etc. content of harmful.Owing to added hydrochloric acid or acetic acid in the machining medium solution, increased the dissolubility of heavy metallic salts such as lead salt; SO
2Sulphite is water-soluble or low-concentration ethanol or aqueous isopropanol in, these materials can be removed or remove a part with Separation of Solid and Liquid.
6, easy and simple to handle, processing cost is lower.Because of adopting the ethanol or the aqueous isopropanol of high-efficient grinding equipment and use low concentration, make process simplify, the organic solution consumption reduces, and can reclaim, so cost is lower.
Narrate embodiments of the invention below:
Embodiment 1:
Take by weighing 100 kilograms of fresh Amorphophallus rivieri stem tubers, flush away surface silt, scrape off epidermis with peeler, dig up terminal bud with cutter, in the 100ppm solution of sodium bisulfite, soak 1-2 second again, send into the fritter that is cut into 1 * 1cm in the dicer, pour in 150 kilograms of 40% ethanolic solutions that contain 0.04M hydrochloric acid, send in the Ultra-micro-grinding machine, regulate the mill spacing to minimum, grind, its slurry is poured in the centrifuge that is lined with 250 order filter bags into the centrifugal solution of sloughing, again filter residue is poured in 100 kilogram of 70% ethanolic solution, send into after stirring evenly in the Ultra-micro-grinding machine and grind once again, make the further refinement of Glucomannan particle, purifying and dehydration are poured its screenings in the centrifuge that is lined with 250 order filter bags into again, the centrifugal medium solution of sloughing, at last that its filter residue is dry under 80 ℃, get 8.1 kilograms of products, its product quality sees attached list 1.
Embodiment 2:
Take by weighing 100 kilograms of dry method konjaku flour or konjaku powders, pour in 350 kilograms of 30% ethanolic solutions that contain 0.05M acetic acid, soak and send in the Ultra-micro-grinding machine after stirring evenly in 30 minutes, regulate the mill spacing in minimum, grind, its slurry is poured in the centrifuge that is lined with the above filter bag of 200 orders, the centrifugal medium solution of sloughing, its filter residue is changed in 200 kilogram of 60% ethanolic solution, stir evenly, send in the Ultra-micro-grinding machine and grind once again, so that the further refinement of Glucomannan particle, purifying and dehydration are poured its filter residue in the centrifuge that is lined with the above filter bag of 200 orders into again, the centrifugal medium solution of sloughing, at last that its filter residue is dry under 80 ℃, get 86.4 kilograms of products, its product quality sees attached list 1.
Embodiment 3:
Take by weighing 50 kilograms of dry method konjaku flour or konjaku powders, add 150 kilograms in water, mix thoroughly rapidly, spread out in freezing box, thick about 5cm is put in to freeze in the storehouse and freezes, temperature is-10 ℃, wind speed per second 3M freezed 48 hours, took out and used crusher in crushing rapidly, again its chip is put into 250 kilograms of 60% ethanolic solutions that contain 0.03M hydrochloric acid, send into immediately in the Ultra-micro-grinding machine, regulate the mill spacing, grind to minimum, after treating that ice crystal melts fully, its screenings is poured in the centrifuge that is lined with the above filter bag of 200 orders, and the centrifugal medium solution of sloughing changes its filter residue in 80 kilogram of 60% ethanolic solution again, stir evenly, send in the Ultra-micro-grinding machine and grind once again, again its filter residue is poured in the centrifuge that is lined with the above filter bag of 200 orders into the centrifugal medium solution of sloughing.At last that its filter residue is dry under 80 ℃, obtain 42.7 kilograms of products, its product quality sees attached list 1.
Subordinate list 1: product quality testing result of the present invention
| Test item | Embodiment 1 | Embodiment 2 | Embodiment 3 | The smart powder of former dry method |
| Color | White | White | White | Slightly yellow |
| Granularity 〉=80 orders | 98.4% | 94.8% | 98.3% | 5.1% |
| Dissolubility (1) | The sub-homogeneous phase of smart powder suspends dissolving in 1 hour fully in the time of 8 minutes | The sub-homogeneous phase of smart powder suspends dissolving in 1 hour fully in the time of 8 minutes | The sub-homogeneous phase of smart powder suspends dissolving in 50 hours fully in the time of 6 minutes | The sub-homogeneous phase of smart powder suspends dissolving in 4 hours fully in the time of 40 minutes |
| Viscosity Pa.S (2) | 20.3 | 21.5 | 22.8 | 10.4 |
| Stench flavor (3) | Do not have | Do not have | Do not have | Dense |
| Moisture | 10.2 | 10.3 | 10.3 | 10.8 |
| Glucomannan content % butt | 87.7 | 88.9 | 90.6 | 76.0 |
Annotate (1) concentration 1%, 25 ℃ of temperature constantly stir before the sub-homogeneous phase of smart powder suspends, and after homogeneous phase suspends, stir once in about 30 minutes.
(2) viscosimetric analysis condition: NDJ-1 type rotation viscometer, No. 4 rotors, 12 rev/mins, concentration 1%, 25 ℃ of temperature.
(3) stench flavor is meant the stench flavor of konjaku feature, and its authentication method is to identify with 5 people's sense organs.
Claims (1)
1, a kind of processing method of instant high-viscosity Amorphophallus konjak powder is characterized in that:
(1) earlier the fresh Amorphophallus rivieri piece is put in 50-200ppm sodium sulfite or the solution of sodium bisulfite, adds 30-60% ethanol or the aqueous isopropanol that contains 0.01-0.1M hydrochloric acid or acetic acid by taro liquor ratio 1: 1-2 again;
The 15-40% ethanol that contains 0.01-0.1M hydrochloric acid or acetic acid or the aqueous isopropanol that perhaps utilize konjaku flour or konjaku powder to add 2-5 times of weight soak more than 20 minutes;
Perhaps konjaku flour or konjaku powder are added water 2-4 doubly, be placed on sharp freezing below-5 ℃, add 40% above ethanol or the aqueous isopropanol that 1-2 doubly contains 0.01-0.1M hydrochloric acid or acetic acid by scars weight after the deep colling;
(2) above-mentioned solution is sent in the Ultra-micro-grinding machine ground, its mill liquid slurry is poured into and is carried out Separation of Solid and Liquid in the centrifuge that is lined with the above filter bag of 200 orders;
(3) isolated filter residue adds 1-3 times of ethanol or the aqueous isopropanol more than 50% of weight again, putting into Ultra-micro-grinding machine grinds once again, utilize centrifuge to carry out Separation of Solid and Liquid again, at last filter residue is being not more than drying under 80 ℃ of conditions, promptly obtain the konjaku powder of odorless instant high-viscosity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94107469A CN1053798C (en) | 1994-07-15 | 1994-07-15 | Processing method for instant high-viscosity Amorphophallus konjak powder |
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|---|---|---|---|
| CN94107469A CN1053798C (en) | 1994-07-15 | 1994-07-15 | Processing method for instant high-viscosity Amorphophallus konjak powder |
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| CN1100275A true CN1100275A (en) | 1995-03-22 |
| CN1053798C CN1053798C (en) | 2000-06-28 |
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| CN94107469A Expired - Fee Related CN1053798C (en) | 1994-07-15 | 1994-07-15 | Processing method for instant high-viscosity Amorphophallus konjak powder |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086560C (en) * | 1999-02-05 | 2002-06-26 | 李经邦 | Konjaku fine flour wet processing method using water as medium |
| CN103461902A (en) * | 2013-07-29 | 2013-12-25 | 西昌学院 | Low-alcohol concentration wet processing method for refined konjak powder |
| CN104381915A (en) * | 2014-12-03 | 2015-03-04 | 巫山县新合农业开发有限公司 | Instant konjaku flour as well as preparation method and application thereof |
| CN106343429A (en) * | 2016-08-25 | 2017-01-25 | 湖北致魔芋生物科技股份有限公司 | Preparation method of purified konjak refined flour capable of being quickly dissolved |
| CN106923146A (en) * | 2015-12-29 | 2017-07-07 | 陕西理工学院 | A kind of devilstongue without sulfur color protecting method |
| CN108175059A (en) * | 2018-02-06 | 2018-06-19 | 西南大学 | A kind of method for preventing konjaku flour from declining in room temperature storage process medium viscosity |
| CN110800949A (en) * | 2019-12-02 | 2020-02-18 | 贵州凤冈众康生物科技有限公司 | Preparation method of bulbil yellow konjac fine powder |
| CN111543625A (en) * | 2020-03-23 | 2020-08-18 | 华中农业大学 | Method for improving viscosity and stability of konjac sol |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1033565A (en) * | 1987-12-22 | 1989-07-05 | 中国科学院成都生物研究所 | A kind of processing technique of refined powder of marvellous taro |
-
1994
- 1994-07-15 CN CN94107469A patent/CN1053798C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1086560C (en) * | 1999-02-05 | 2002-06-26 | 李经邦 | Konjaku fine flour wet processing method using water as medium |
| CN103461902A (en) * | 2013-07-29 | 2013-12-25 | 西昌学院 | Low-alcohol concentration wet processing method for refined konjak powder |
| CN103461902B (en) * | 2013-07-29 | 2014-07-16 | 西昌学院 | Low-alcohol concentration wet processing method for refined konjak powder |
| CN104381915A (en) * | 2014-12-03 | 2015-03-04 | 巫山县新合农业开发有限公司 | Instant konjaku flour as well as preparation method and application thereof |
| CN106923146A (en) * | 2015-12-29 | 2017-07-07 | 陕西理工学院 | A kind of devilstongue without sulfur color protecting method |
| CN106343429A (en) * | 2016-08-25 | 2017-01-25 | 湖北致魔芋生物科技股份有限公司 | Preparation method of purified konjak refined flour capable of being quickly dissolved |
| CN108175059A (en) * | 2018-02-06 | 2018-06-19 | 西南大学 | A kind of method for preventing konjaku flour from declining in room temperature storage process medium viscosity |
| CN110800949A (en) * | 2019-12-02 | 2020-02-18 | 贵州凤冈众康生物科技有限公司 | Preparation method of bulbil yellow konjac fine powder |
| CN111543625A (en) * | 2020-03-23 | 2020-08-18 | 华中农业大学 | Method for improving viscosity and stability of konjac sol |
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|---|---|
| CN1053798C (en) | 2000-06-28 |
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