JPH0870826A - Production of sterile marine alga essence - Google Patents

Abstract

PURPOSE: To enable preservation of sterile marine alga essence for a long period of time by extracting essence from stem parts of marine algae represented by tangle root and folded tangle root part without damaging a nutrient and a useful substance and without drawing out a smell and viscosity. CONSTITUTION: Stem parts of marine algae prepared into a proper size are washed with water and an alcohol and then air-dried. The stem parts are immersed in about 10 times to 40 times as much water as the stem parts and extracted at low temperature for about 10 hours to 12 hours. The extracted solution is sterilized by ultraviolet light at a room temperature, or is filtration- treated for removing bacteria.

Description

Detailed Description of the Invention

[0001]

[Field of Industrial Application] The present invention is capable of removing nutrients from a stem portion of nutritious seaweed typified by kelp etc.
The present invention relates to a method for producing a sterile seaweed extract, which is adapted to extract an extract having no odor and stickiness and having good storage stability.

[0002]

2. Description of the Related Art Generally, seaweeds consist of hair roots, followed by stems and leaves. For example, in kelp, in FIG. 7, (a) is a hair root, (b) is a main part of a stem called root kelp, and (c) is a leaf. It is known that this root kelp (b) contains a large amount of nutrients and useful substances (components) such as glutamic acid, potassium, iodine, calcium, magnesium, laminin, and alginic acid. The end of the leaf (c) on the stem side (d) is called the root part, and since the tissue is substantially the same as the root kelp (b), it is called the root part (d). It is assumed that the kelp stem is composed of the root kelp (b).

[0003]

However, no matter how useful the root kelp (b) is, it is not suitable to eat it directly because it is hard and does not have a good flavor. Therefore, conventionally, the root kelp (b) was soaked in water for a predetermined time to extract the extract, and the extract solution was drunk. However, this extract extract is hard to drink because it has a unique smell and stickiness of kelp. In that case, add seasonings, honey, etc. to make it easier to drink,
Although there was a tendency to adjust the pH with an organic acid or to add various solvents and to heat it, almost no effect could be obtained. In addition, since the above extract extract is rich in nutrients, minerals, etc., microorganisms are easily proliferated and putrefaction,
It could not be stored for a long period of time because it could easily deteriorate. In that case, it is possible to heat sterilize the extract extract,
It cannot be used because a slight amount of heat sterilization causes loss of useful components, changes in taste, and heating odor such as burnt odor. Therefore, the reality is that some health-conscious people make small quantities of the extract and drink it each time.

The present invention has been made by paying attention to such a point, and an object thereof is to extract an extract from a stem portion of a seaweed represented by root kelp and kelp folded root. The purpose is to preserve nutrients and useful substances without damaging odor and stickiness, and to enable long-term storage.

[0005]

In order to achieve the above object, the first aspect of the present invention is that the stem portion of seaweed prepared to an appropriate size is washed with water and alcohol and then air-dried, and then the stem portion It is soaked in about 10 to 40 times the weight of water and extracted at a low temperature for about 10 to 12 hours. Here, the seaweed is a concept of seaweed including kelp, and the stem portion is a portion between the hair root and the leaves, and in the case of kelp, a root kelp and a folded root portion.

According to a second aspect of the present invention, the extract obtained by the production method of the first aspect is subjected to ultraviolet sterilization treatment at room temperature.

A third aspect of the present invention is a structure in which the extract obtained by the production method of the first aspect is filtered and sterilized.

[0008]

In the first aspect of the present invention, the alcohol softens the tissue on the surface of the stalk and easily contains water, so that nutrients and useful substances are well extracted in the subsequent extract extraction step. Alcohol dissolves the volatile component that is the smell of the stem, and this volatile component (soluble matter) is removed by air drying. Further, the alcohol solidifies a high molecular weight component such as the viscosity of seaweed to form an insoluble substance, and the insoluble substance is fixed by air drying. Also, the surface of the stem is disinfected with alcohol.

[0009] Further, a volatile component which becomes an odor and a high molecular component which becomes a sticky substance may slightly remain even after washing with water and alcohol, but these remain because the extract is extracted under a low temperature condition. The extract is extracted in a state where the volatile component and the high molecular component have low solubility.

According to the second aspect of the present invention, since the sterilization treatment is carried out without heating by ultraviolet sterilization at room temperature, the sterilization is performed without changing the flavor, and the odor and stickiness are destroyed by the oxidation reaction of the ozone generated. Also in claim 3, since the bacteria are removed by filtration, the bacteria can be removed without changing the flavor.

[0011]

EXAMPLES Examples will be described below. First, root kelp 60
g, about 300 to 1000 to remove sand and dust
Lightly wash with milliliters of tap water, then about 70
Wash with about 100 milliliters of percent ethyl alcohol and air dry. By this step, the tissue on the root kelp surface is softened and water is easily contained, so that nutrients and useful substances are well extracted in the next extract extraction step. Also,
Alcohol dissolves the volatile component that is the smell of the stem, and this volatile component (soluble matter) is removed by air drying. Further, the alcohol solidifies a high molecular weight component such as the viscosity of seaweed to form an insoluble substance, and the insoluble substance is fixed by air drying. Further, alcohol sterilizes the surface of root kelp and kills bacteria and the like on the surface of root kelp. In addition,
Ethyl alcohol is preferable as the alcohol because it has a unique odor and is highly safe.

Then, the root kelp is put in a beaker or the like,
To this, about 2200 ml of water is added and wrapped, and the mixture is kept at a low temperature of about 5 degrees Celsius in a refrigerator or the like for one night (about 10 to 12 hours). Then, the extract liquid containing root kelp extract is about 1920
~ 2000 ml is obtained, while root kelp absorbs water to about 240-320 grams. Since the low temperature state is maintained in this step, the following actions and effects are obtained. That is, a volatile component that becomes an odor and a high-molecular component that becomes a sticky substance may remain slightly even after washing with water and alcohol, but since the extract is extracted under low temperature conditions, these remaining slight volatilities The extract is extracted in a state where the solubility of the component and the polymer component is low.

Then, the extract extract is transferred to a container such as a white bottle, a waterproof type ultraviolet sterilizing lamp for immersion is inserted into this container, and the mixture is irradiated with magnetic stirring for about 5 minutes to 1 hour. To sterilize. In this step, since the sterilization treatment is carried out without heating by ultraviolet sterilization at room temperature, the sterilization is performed without changing the flavor, and the odor and stickiness are further destroyed by the oxidation reaction of the generated ozone.

This extract extract is put into a sterilization bottle of, for example, about 3 to 4 liters, aseptically filled in a sterile pack of, for example, 100 ml by a sterilized dispenser, and sealed and sealed for commercialization. . This aseptic pack is obtained, for example, by sterilizing an ordinary pack with a mixed gas of ethylene oxide and carbon dioxide. Also, instead of the aseptic pack, an antibacterial pack may be filled.

The extract of root kelp thus obtained (ultraviolet irradiation time of 1 hour) is a conventional extract of kelp obtained by simply immersing the root kelp in water, as shown in FIG. It shows almost the same absorbance as.

Next, an extract extract of root kelp obtained by the method of the example and an extract extract obtained by a conventional method of extracting the extract by simply soaking root kelp in water for a predetermined time are prepared for each component. The results are shown in Table 1 for comparison. According to the conventional method, a 6% solution of root kelp (this means a solution in which 6 g of root kelp is mixed with 100 cc of water) was extracted in 6 hours, and the extract solution had a salt content of 6.87% and a brix of 2.2. %, PH 6.1
1, while the root kelp 2.7 according to the method of the example.
The extract solution extracted from the 7% solution in 10 to 12 hours had a salt content of 2.62%, a brix of 1.4% and a PH of 6.4.
It was 8. Here, Brix is a "umami component" composed of water-soluble components such as salts, sugars and amino acids,
The definition of% is the number of grams present in 100 cc of water. The extraction rate is the ratio of salt or brix to the solution. From this experimental result, it can be seen that the brix, which is the main component of the extract, was obtained by about 38% more than the conventional method by the method of the example.

[Table 1]

Similarly, the experimental results of absorbance obtained for wakame seaweed, hijiki seaweed, and seaweed seaweed are shown in FIGS. 2, 3 and 4, and the analysis results of the extract extract are also shown in Table 1.
As can be seen from this table, according to the method of the example, brix was obtained at about 7.5% (wakame), about 21% (hijiki), and about 38% (arrest) more frequently than the conventional method. Has been.

Therefore, in the above-described embodiment, light washing with water and washing with ethyl alcohol having a purity of about 70% tend to soften the tissue on the surface of the root kelp and make it easier for water to be contained, so that it is rich in nutrients and useful substances. The root kelp extract contained in can be extracted. Moreover, ethyl alcohol dissolves and removes the volatile components of root kelp, solidifies and fixes the polymer components, etc., and further extracts the extract under low temperature conditions,
Since the solubility of a small amount of residual volatile components and high-molecular components is suppressed to a low level, an extract liquid with little odor and stickiness can be extracted. In addition, the odor and stickiness of the extract can be further reduced by the oxidation reaction of ozone generated by ultraviolet sterilization at room temperature. Furthermore, since the root kelp surface is sterilized with ethyl alcohol, and the sterilization treatment is performed by non-heating by ultraviolet sterilization at room temperature, the extracted extract extract can withstand long-term storage, and therefore, this extract extract is For example, if the product is packed in a pack, it is possible to obtain a beverage product intended for general consumers, which is easy to drink and has good storage stability.

Although the sterilization treatment by ultraviolet sterilization was carried out in the above-mentioned Examples, the sterilization may be carried out by filtration, whereby an extract extract which can be stored for a long time without changing the flavor can be obtained. Here, a specific method of filter sterilization is shown in FIGS.
Shown in The suction method shown in FIG. 5 is applied to, for example, seaweed, hijiki, and storm, and the filter holder 2 is inserted into the suction bottle 1 via a silicone stopper.
The membrane filter 3 is sandwiched and set in the filter holder 2, the extract extract is put in the filter holder 2, and the air in the suction bottle 1 is drawn from the exhaust pipe 1a by a suction pump. Here, the first-stage suction bottle 1 equipped with a membrane filter 3 having a diameter of 0.8 μm, the second-stage suction bottle 1 equipped with a membrane filter 3 having a diameter of 0.65 μm, Hole 0.45
It is equipped with a third stage suction bottle 1 equipped with a micron membrane filter 3, and these are passed in order to obtain 3
Perform stage filtration. In addition, the pressurizing method shown in FIG. 6 uses the first tank 11 made of stainless steel having the air introducing pipe 11a.
And a second tank 12 made of stainless steel having an air vent pipe 12a, and a communication pipe 13 having one end opening to the bottom of the first tank 11 and the other end opening to the upper part of the second tank 12.
And diameter holes 0.8 micron, 0.65 micron, 0.45
Micron membrane filters are sandwiched and fixed by stainless steel fittings, and are provided with first to third filters 14 to 16 which are provided in series in the communication pipe 13. Then, when the extract extract is put into the first tank 11 and the pressurized air from the pressurizing pump is put into the air introducing pipe 11a, the extract extract is conveyed by the communication pipe 13, and the first to third filters 14 are provided therebetween. It is said that it is filtered in order from 16 to 16 and accumulated in the second tank 12. By either method, the bacteria are almost completely removed by the three-step filtration, and the filtrate becomes as sterile.

However, neither the sterilization treatment by ultraviolet sterilization nor the filter sterilization treatment is an essential step. The reason is that even without this, an extract extract containing a sufficient amount of nutrients and useful substances, having little odor and stickiness, and having good storage stability can be obtained. Further, in the above examples, the case of extracting the root kelp extract has been described, but the production method of the present invention can also be applied to the case of extracting the kelp folded root extract, and the stems of seaweeds other than kelp. It is also applicable to the case of extracting an extract from. As kelp, for example, Gagome kelp, true kelp, Rishiri kelp, Mitsukishi kelp,
Examples include Naga Konbu, Hosome kelp, and the like. For seaweeds other than kelp, for example, hijiki, book straw, cabbage,
Examples include seaweed, rough seaweed, and blue seaweed.

[0021]

As described above, according to the method for producing a sterile seaweed extract of claim 1, since the tissue on the surface of the stem portion of the seaweed is softened by the alcohol and water is easily contained, nutrients and useful substances are obtained. It is possible to extract seaweed extract rich in. Moreover, the volatile components of the stems of seaweeds are dissolved and removed by alcohol, the polymer components are solidified and fixed, and the extract is extracted under a low temperature condition. Since the solubility is kept low, it is possible to extract seaweed extract with low odor and stickiness. In addition, since the stem surface of seaweed is disinfected by alcohol, the extracted extract can withstand long-term storage. Therefore, if this extract is packed, for example, it can be used by general consumers. Therefore, it is possible to obtain a beverage product that is easy to drink and has good storage stability.

According to the method for producing a sterile seaweed extract of claim 2, since it is sterilized by ultraviolet sterilization at room temperature without heating, it can be sterilized without changing the flavor and the long-term storability of the extracted extract liquid. The odor and stickiness of the extract can be reduced by the oxidation reaction of the generated ozone. Further, according to the method for producing a sterile seaweed extract of claim 3, since the extract is sterilized by filtration, the long-term storage stability of the extracted extract extract can be improved without changing the flavor.

[Brief description of drawings]

FIG. 1 is an experimental result diagram in which the vertical axis represents absorbance and the horizontal axis represents wavelength in nm;

FIG. 2 is a first equivalent diagram relating to seaweed,

FIG. 3 is a first equivalent diagram regarding hijiki,

FIG. 4 is a first equivalent diagram regarding an outline,

FIG. 5 is an explanation showing the filter sterilization by a suction method,

FIG. 6 is an explanation showing filtration sterilization by a pressure system,

FIG. 7 is a perspective view of kelp.

[Explanation of symbols]

 I Hair roots Root kelp (stems) Ha leaves D. roots (stems)

[Procedure amendment]

[Submission date] October 20, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0019

[Correction method] Change

[Correction content]

Although the sterilization treatment by ultraviolet sterilization was carried out in the above-mentioned Examples, the sterilization may be carried out by filtration, whereby an extract extract which can be stored for a long time without changing the flavor can be obtained. Here, a specific method of filter sterilization is shown in FIGS.
Shown in The suction method shown in FIG. 5 is applied to, for example, seaweed, hijiki, and storm, and the filter holder 2 is inserted into the suction bottle 1 via a silicone stopper.
The membrane filter 3 is sandwiched and set in the filter holder 2, the extract extract is put in the filter holder 2, and the air in the suction bottle 1 is drawn from the exhaust pipe 1a by a suction pump. Here, the pore size 0. 8 micron first stage of the membrane filter 3 is mounted in the suction bottle 1, and the suction bottle 1 of the second stage of mounting the membrane filter 3 having a pore size of 0.65 microns, pore size 0. 45
It is equipped with a third stage suction bottle 1 equipped with a micron membrane filter 3, and these are passed in order to obtain 3
Perform stage filtration. In addition, the pressurizing method shown in FIG. 6 uses the first tank 11 made of stainless steel having the air introducing pipe 11a.
And a second tank 12 made of stainless steel having an air vent pipe 12a, and a communication pipe 13 having one end opening to the bottom of the first tank 11 and the other end opening to the upper part of the second tank 12.
And pore size 0.8 micron, 0.65 micron, 0.45
Micron membrane filters are sandwiched and fixed by stainless steel fittings, and are provided with first to third filters 14 to 16 which are provided in series in the communication pipe 13. Then, when the extract extract is put into the first tank 11 and the pressurized air from the pressurizing pump is put into the air introducing pipe 11a, the extract extract is conveyed by the communication pipe 13, and the first to third filters 14 are provided therebetween. It is said that it is filtered in order from 16 to 16 and accumulated in the second tank 12. By either method, the bacteria are almost completely removed by the three-step filtration, and the filtrate becomes as sterile.

Claims (3)

[Claims] 1. A seaweed stalk prepared to an appropriate size is washed with water and alcohol, then air-dried, and then immersed in water having a weight of about 10 to 40 times that of the stalk, at low temperature. A method for producing a sterile seaweed extract, which comprises extracting for about 10 to 12 hours. 2. A method for producing a sterile seaweed extract, which comprises subjecting the extract obtained by the method according to claim 1 to ultraviolet sterilization at room temperature. 3. An extract obtained by the production method according to claim 1,
A method for producing a sterile seaweed extract, characterized by being sterilized by filtration.