JPS59102360A - Preparation of edible fiber - Google Patents

Abstract

PURPOSE:To obtain an edible fiber free from irritation and smell without lowering the physiological activity and physical properties, by treating the bran of cereal with an alkaline aqueous solution. CONSTITUTION:Bran of cereals (skin of corn, wheat, beans, etc.) is if necessary subjected to the enzymatic treatment, chemical treatment, etc. to remove the starch, protein, lipid, inorganic components, etc., and immersed in an alkaline aqueous solution (e.g. aqueous solution of sodium hydroxide having a concentration of about 0.05-4%) at a ratio of about 3-30wt%. The product is neutralized, washed, dehydrated, crushed, etc. to obtain the objective edible fiber.

Description

[Detailed Description of the Invention] Japan's eating habits have improved year by year, and carbohydrates made from treetops,
As the intake of animal white matter and animal fat increases, the number of Western-style civilizational diseases is increasing. Since Dr. Purkitt pointed out that the cause of these problems was insufficient intake of dietary fiber, countermeasures against this intake have been actively investigated in Western countries, and various dietary fibers have been developed. Even in Japan, fiber, which was once considered to have no nutritional value, has been reconsidered to the same extent as in Europe and the United States, and nutritionists and medical scientists are now recognizing the importance of dietary fiber as part of measures against adult diseases. has been pointed out, and the correlation between dietary fiber and physiological activity against adult diseases has been academically discussed for a long time.

Due to the above-mentioned European and American trends and stimulation from academic societies, dietary fibers made from wood have recently been imported, and are sold mainly for bread, biscuits, and other food products, while other vegetables, fruits, etc. ．． Dietary fiber extracted from grains is becoming commercially available as a general food product.

The present inventors have previously developed a physiologically active dietary fiber made from grains, especially corn husks (corn fibers), by subjecting them to certain treatments (Japanese Patent Application No. 55-96
No. 206).

However, dietary fiber prepared from the bran of cereals such as corn husk, wheat/barley bran, soybean/adzuki bean husk, etc. does not pose much of a problem when used in small amounts as an additive to various foods. If you eat fiber powder as it is,
Or, if you use something that contains a lot of water, such as drinks or seasonings, it will feel rough in the "-" region, which will seriously affect the texture. In particular, when the powdered product is eaten as is, it not only has a rough texture but also gives a stinging sensation when swallowed.

Furthermore, products made from grain filth have an odor unique to grains, and therefore have the disadvantage that when used in large amounts in the production of food and drink products, the flavor of the food will be impaired.

Dietary fiber prepared independently from grains has physiological activity (particularly suppressing the increase in serum cholesterol) and has excellent physical properties such as water absorption, oil absorption, water retention, and flavor retention, so it can be applied to various foods. However, due to the above drawbacks,
Its use was discouraged.

Therefore, an object of the present invention is to eliminate the drawbacks of irritation and odor without impairing the physiological activity and physical properties of the above-mentioned dietary fibers, and to obtain dietary fibers with improved texture. .

The present inventors conducted various studies to achieve the above object.

First, the rough feeling in the mouth was eliminated by finely pulverizing grain bran or dietary fiber from which starch, protein, etc. have been removed, and by making the particle size uniform.
The sting, like a thorn, still remained.

On the other hand, when it comes to the odor characteristic of grains, alcohol is the answer.

Deodorization can be achieved by extraction using a solvent such as ether, but in this case, the use of a solvent poses an economic problem of increased costs. In order to simultaneously remove the odor and odor, as a result of various studies, it was discovered that the above problems can be solved at once by soaking the grain bran in an alkaline aqueous solution, and the present invention has been completed.

That is, the present invention relates to a method for producing dietary fiber, which comprises immersing the bran of cereals as they are or the bran of cereals after removing starch, proteins, lipids, inorganic substances, etc. in an alkaline aqueous solution. It is something.

The present invention will be explained in detail below.

In the present invention, the grain '8M as it is or the grain after removing starch, protein, lipids, inorganic substances, etc., is treated by immersing it in an alkaline aqueous solution.

For grain bran, corn husks, wheat, barley,
In the present invention, in which the bran of rye and pigeon wheat, and the hulls of legumes such as soybeans and perennials are used, the grains are soaked as they are in an alkaline aqueous solution, or they are soaked in starchy,
protein.

The product from which impurities such as lipids and inorganic substances have been removed is treated by immersing it in an alkaline water bath. For information on how to remove impurities such as starch, protein, lipids, and inorganic substances from grain husks, please refer to
The method described in JP-A No. 57-21323 can be adopted.

Namely, whole bran enzyme treatment and chemical treatment of grains.

By performing any one of the physical treatments or a suitable combination of these treatments, the above-mentioned contaminants are removed while relaxing the tissue structure of the grain seeds.

Caustic soda is an aqueous alkaline solution.

Caustic potash, calcium hydroxide, carbonate powder.

An aqueous solution of one or more selected from alkali and alkali salts such as sodium hypochlorite, phosphoric acid, and citric acid is used.

The alkaline concentration of the alkaline aqueous solution is preferably in the range of 0.05 to 4.0%. Alkali concentration is 0.05%
If the amount is less than 4.0%, the object of the present invention will not be achieved, and if it is more than 4.0%, there is a possibility that the physiological activity of the obtained dietary fiber (particularly the ability to suppress the increase in serum cholesterol) will be impaired, and it is also economically disadvantageous.

When grain bran is immersed in an alkaline aqueous solution, the concentration of the bran in the alkaline aqueous solution is preferably 3 to 3ON. If it is less than 3%, it is economically disadvantageous, and if it is more than 30X, the stirring efficiency will be reduced. This is not preferable because it is damaged and becomes non-uniform.

Next, in the present invention, the bran of the grains immersed in the alkaline water bath solution is soaked for 4 days + 6 c.
Dietary fiber can be obtained by performing one of m + dehydration or an appropriate combination of treatments and drying after 7E, and further pulverizing it to make dietary fiber powder.
I can do that.

Here, as the washing method, any method such as washing with a large amount of water, washing with a medium wash, washing, neutralizing, washing, etc. can be adopted. Furthermore, drying and pulverization can be carried out by conventional methods using known equipment.

The dietary fiber of the present invention obtained in this way has the water absorption and oil absorption properties of the conventional dietary fiber prepared from cereal bran.
Water retention, fragrance retention, and suspension properties.

Fluidity, (-1) Since the disadvantages of thorn-like irritation and grain beauty are removed without any loss in physical properties such as tabletability, it is highly effective compared to conventional dietary fibers in the production of food and beverage products. However, even if a large amount is used on the roadside, the flavor will not be affected.

The present uA will be explained below using examples.

Example 1 An aqueous dispersion of corn fibers (solid content 10X) separated and produced by wet milling of corn was treated with a homogenizer for 1 minute, and then separated with water using a 32 Metshi metal. Collect the residue, dry it,
It was powdered to obtain dietary fiber powder (this will be used as a comparative product).

Next, add 60 parts of the above A to 1.5% caustic soda solution and 7Hso.
After being immersed in 800 parts of running water for 16 hours at room temperature, it was dehydrated using a centrifugal dehydrator, and while being suspended in 800 parts of running water, the pH was adjusted to 4.2 alAI with hydrochloric acid.

Next, after dehydrating this, using 800 parts of water at a time, 2
After washing twice, this was further dehydrated and dried, and then processed in a coffee mill for 30 seconds to obtain dietary fiber powder (ft*) (this is referred to as product B of the present invention).

The two types of dietary fiber powders mentioned above were fed to 28 people.

General 1 n-28 according to the 2-point ratio strategy (both-sided test) Nodame test chart
In the case of , the limit values for the southern level α of 5N+IX and 0.19 are 20 and 22, respectively.

It is 23. If you select more and compare the number of rotations with these, the one with less dryness and the one with no odor.

The present invention is considered to be preferable with an M attraction level of 0.1-6 for both those with and without thorns, and those with a better overall texture.

Example 2 Commercially available wheat bran (hard wheat from the United States) was washed with water and separated using 16 menozole, and the residue was collected, which was dried and powdered to obtain dietary fiber powder (this was used as a comparative product). C
).

Next, part C5 was treated with 100 parts of 0.5% NaOH solution kept at 50°C for 4 hours with stirring, and then immediately dehydrated with a centrifugal dehydrator, suspended in 100 parts of water, and stirred with stirring. The mixture was adjusted to pH 4.2 with hydrochloric acid and dehydrated. After washing this twice with 100 parts of water each time, dehydrating and drying,
It was processed in a coffee mill for 30 seconds to obtain dietary fiber powder (this is the product of the present invention).

A sensory test was conducted on the above two types of dietary fiber powders in the same manner as in Example 1. The results are shown in Table 2.

Table 2 Example 3 10 parts of commercially available rice bran was added to 90 parts of water and treated with a high-speed homogenizer (Ciscotron) for 5 minutes.
The surface was washed with water and separated using a mesh sieve, and the residue on the surface was collected. Next, this was poured into 80 parts of warm water, and while stirring, 5 parts of sodium hypochlorite was gradually removed, and the mixture was heated to 80 parts at 50°C.
After treatment for several hours, adjust the pH to 4.8 with sulfuric acid, centrifugal dehydration, and wash twice with 100 parts of water each time. I don't like it,
The dietary fiber of the present invention was obtained by dehydration and drying. The obtained dietary fiber had no off-flavor at all, and no thorny stinging sensation was felt when eaten.

Example 4 30 parts of dietary fiber prepared from corn husk (comparative product A of Example 1) was added to 70 parts of a 0.3 high hydroxide lucium solution.
After processing at 50°C for 8 hours, it was dried using a double drum dryer, and then it was put into a pulverizer (
The fiber powder of the present invention was obtained by pulverizing the fiber using an atomizer.

The obtained dietary fiber had no strange odor and did not feel stinging like a thorn when eaten.

Example 5 7 parts of commercially available barley bran was added to 100 parts of 4+X sodium carbonate solution.
After being treated at 95C for 20 minutes with stirring, the mixture was immediately adjusted to 5.0 with hydrochloric acid and dehydrated. After dehydration and settling three times using 100 parts of water each time, the mixture was dried and ground to obtain dietary fiber powder of the present invention.

Example 6 20 parts of okara powder obtained by drying commercially available okara and pulverizing it into 200 mesh powder was added to a 0.3 citric acid Nogoo bath of 80 grams, treated at 60C for 2 hours, and then dried in a spray dryer. Dietary fiber powder 'jc of the product of the present invention was obtained.

Example 7 15 parts of food g and fiber prepared from wheat bran (comparative product C of Example 2) were added to 100 parts of 1% water-extracting carunium bath solution, treated at 70C for 2 hours, and then immediately dehydrated. death,
It was then dried with hot air. The dried plate was ground to obtain dietary fiber powder of the present invention.

Examples 8 and 9 60 parts of dietary fiber prepared from sorghum husk (comparative product A of Example 1) was mixed with 3" x 800 parts of sodium hydroxide solution.
After stirring at room temperature overnight, P was dissolved in hydrochloric acid.
l (adjusted to 3.5 and dehydrated. 800 g of water for one wash)
The fibers were washed and dehydrated three times using a 100 ml bottle, dried using a freeze dryer, and further ground to obtain a dietary fiber powder of the present invention.

Examples 9 and 9 Dry milling of corn Separated The produced corn hulls were crushed and separated into corn husks.
20 parts of the product from which the parts other than the liquid had been removed were added to 80 parts of 0.1% caustic soda, treated overnight, and then dehydrated.
This was poured into water at 100 VA again, and while stirring, 3 parts of sodium hypochlorite was added and treated at room temperature for 5 hours.

Then, dehydrate it.

Wash 711? ! L and 1'I were adjusted to 5.3, dehydrated and dried to obtain the dietary fiber of the present invention.

% Applicant Nippon Shokuhin Kako Co., Ltd. Procedural Amendment Written on February 1988, especially by the Director-General of the Office, Wakasugi No. 11. 210/y70 No. 2 Name of the invention Process for producing dietary fiber 6 Person making the amendment Relationship with LJ 1 Patent applicant residence 19T 100 3-chome, Group 4, Marunouchi, Chiyoda-ku, Tokyo 1 No. 4 Subject of amendment 11' (11 -I Patent 111”■Scope of Claim and Detailed Explanation of the Invention 5 Contents of Amendment (1) The scope of claims in the specification will be amended as shown in the attached sheet.

(2) Correct each of the following words in detail 1.

Claims (1) A process characterized by immersing grain bran in its size or grain bran from which starch, protein, fat t-1, inorganic substances, etc. have been removed in alkaline water solution. A method for producing dietary fiber.

(2) - As an alkaline aqueous solution, one or more alkali or alkali salts selected from caustic soda, caustic potash, hydroxide, carbonate, hypochlorous acid, phosphoric acid, citric acid, etc. are used in a water bath. The method for producing dietary fiber according to claim 1, which comprises using a liquid.

(,3} The alkaline concentration of the alkaline aqueous solution is 0.05
.yi of the dietary fiber according to claim 1, which has a .mu.m of .about.4.0%.

Claims (2)

[Claims] (1) Dietary fiber produced by immersing 41 tons of harvested chicken in an alkaline water bath after removing starch, protein, lipids, inorganic substances, etc. from shavings or grain elongation. manufacturing method. (2) Caustic soda as an alkaline aqueous solution. Caustic potash, calcium hydroxide, carbonate sorta. -9th ati chlorine bander, phosphorus enemy, que/
%+Vf tifl The method for producing dietary fiber according to item 1, which comprises using a 7JC solution of 1 m or more selected from alkali or alkali salts such as aqueous soda. (,3) Alkali concentration of alkaline water bath solution is 0.0
5 to 4.0') 6 φ1λ range
The method for producing dietary fiber described in Section 1.