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Method for extracting soluble dietary fiber

A dietary fiber and extraction method technology, applied in the field of soluble dietary fiber extraction, can solve the problems of low soluble dietary fiber content and the like, and achieve the effect of sufficient microbial fermentation

Active Publication Date: 2013-06-26
XINJIANG ACADEMY OF AGRI & RECLAMATION SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an extraction method for increasing the content of soluble dietary fiber to solve the problem of low content of soluble dietary fiber beneficial to human body in natural raw materials, thereby providing food raw materials with high content of soluble dietary fiber for food manufacturing

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1: Extraction of grape skin dietary fiber

[0030] (1) Grape skin pretreatment: the grape skin is washed with water to remove impurities, and the skin seeds are separated, dried at 60°C until the mass percentage of water is 8-10%, the dried material is collected and crushed, and passed through a 100-mesh sieve to obtain grapes Leather powder. Soak the above raw material powder with anhydrous ether to remove the fat, and finally wash with 80% ethanol solution to remove the residual ether, then dry it to obtain the grape skin raw material, and store it in a cool and dry place sealed for later use.

[0031] (2) Weigh 4.0g of citric acid, dissolve it in 100g of water, pour 10.0g of the pretreated grape skin raw material for mixing, then add 5.2g of sodium bicarbonate solid powder and mix well; put the mixed material into SYSLG30 ~IV experimental twin-screw extruder (Jinan Saibainuo Technology Development Co., Ltd.) for extrusion and puffing, the screw speed is s...

Embodiment 2

[0047] Embodiment 2: the extraction of tomato skin dietary fiber

[0048] (1) Tomato skin pretreatment: the tomato skin is washed to remove impurities, the skin and seeds are separated, and dried at 60°C until the water content is about 8-10%. pink. Soak the above raw material powder with anhydrous ether to remove fat, and finally wash with 60% ethanol solution to remove residual ether, then dry it to get tomato skin raw material, and store it in a cool and dry place sealed for later use.

[0049] (2) Weigh 2.0g of citric acid, dissolve it in 80g of water, pour 10.0g of the pretreated tomato peel raw material for mixing, then add 2.0g of sodium carbonate solid powder and mix well; put the mixed material into SYSLG30~ In the IV experiment, the twin-screw extruder (Jinan Saibainuo Technology Development Co., Ltd.) was extruded and extruded. When no bubbles are produced in the water (indicating that the reaction between citric acid and sodium bicarbonate is complete), the extru...

Embodiment 3

[0061] Embodiment 3: Extraction of soybean hull dietary fiber

[0062] (1) Soybean hull pretreatment: Soybean hulls are washed with water to remove impurities and seeds are separated, and dried at 60°C until the water content is about 8-10%. The dried material is collected and crushed and passed through a 100-mesh sieve to obtain soybean hull fiber raw material pink. Soak the above raw material powder with anhydrous ether to remove the fat, and finally wash the residual ether with 70% ethanol solution and dry it to obtain the raw material of soybean hulls, and store it sealed in a cool and dry place for later use.

[0063] (2) Weigh 6.0g of citric acid, add 120g of water, pour 10.0g of pretreated soybean hull raw material for mixing, then add 6.0g of potassium carbonate solid powder and mix well; put the mixed material into SYSLG30~IV The experimental twin-screw extruder (Jinan Saibainuo Technology Development Co., Ltd.) was extruded and extruded, the screw speed was set at 1...

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Abstract

The invention discloses a method for extracting soluble dietary fiber, which comprises the following steps of: A, processing dietary fiber raw materials by adopting a carbon dioxide blasting, extruding and puffing method to obtain modified dietary fiber raw materials; B, carrying out microbial fermentation processing on the modified dietary fiber raw materials obtained in the step A by using mixed microbial bacterial solution to obtain a fermented mixture; and C, carrying out extraction filtration on the fermented mixture, drying filter residues obtained through extraction filtration after washing the filter residues to be neutral, thereby obtaining the soluble dietary fiber. Compared with the current acid preparation process, alkaline preparation process or microbial extraction process, by adopting the dietary fiber modification method, the content of the soluble dietary fiber in the product is up to 28.69+ / -0.9%.

Description

technical field [0001] The invention relates to the technical field of nutrient substance extraction, in particular to a method for extracting soluble dietary fiber. Background technique [0002] In 1985, the U.S. Food and Drug Administration (FAO) and the World Health Organization (WHO) determined that dietary fiber refers to animal and plant components that can be determined by recognized quantitative methods and cannot be hydrolyzed by human digestive organs. In the early days, dietary fiber was considered crude fiber with no nutritional value. However, with the improvement of people's living standards, the intake of high-calorie, high-protein, high-fat and refined foods in the dietary structure has greatly increased, leading to modern "civilized diseases" such as diabetes, cardiovascular disease, obesity, intestinal cancer, constipation, hemorrhoids Waiting is becoming more and more common. A large number of animal and human experiments have shown that the deficiency o...

Claims

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Application Information

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IPC IPC(8): A23L1/308
Inventor 吴宏吴洪斌刘成江郭安民贾雪峰金新文
Owner XINJIANG ACADEMY OF AGRI & RECLAMATION SCI
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