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Method for extracting water-insoluble dietary fiber of osmunda cinnamomea

A technology of soluble dietary fiber and sage water, applied in food preparation, food science, application, etc., can solve the problems of water-insoluble cellulose and low purity, and achieve the effect of promoting deep processing research.

Active Publication Date: 2013-05-08
ZHEJIANG WANLI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, Li Fengxia used the alkali method to extract the dietary fiber in the dried veil, but the purity of the water-insoluble cellulose in the extracted water-insoluble dietary fiber was low, and contained other impurities, such as lignin, protein, and hemicellulose. etc., do not meet the market requirements for water-insoluble cellulose

Method used

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  • Method for extracting water-insoluble dietary fiber of osmunda cinnamomea
  • Method for extracting water-insoluble dietary fiber of osmunda cinnamomea
  • Method for extracting water-insoluble dietary fiber of osmunda cinnamomea

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Effect test

Embodiment 1

[0031] Example 1 Preparation of the water-insoluble dietary fiber of Osmanthus

[0032] The method for extracting the water-insoluble dietary fiber of Osmanthus chinensis comprises the following steps: (see Table 1 for specific parameters):

[0033] 1) Degreasing: use a pulverizer to crush the dried vetch, then add ethyl acetate and soak it at room temperature for 3 hours, then use distilled water to remove the residual organic solvent, filter and dry it with suction, then crush it again, pass through 40 mesh Sieve, and put the obtained degreased sample into a dry dish for later use.

[0034] 2) α-amylase hydrolysis; put 10 g of degreased vetch dry powder in a 500ml beaker, add distilled water according to the ratio of material to liquid 1:20 and stir evenly, soak for 30min; add 2.5g / L citric acid solution ( or 1.0g / L sodium carbonate solution), adjust the pH value to a certain value, add a certain amount of α-amylase, put it into a constant temperature water bath for enzymol...

Embodiment 2

[0066] Embodiment 2 The research of alkaline hydrolysis extraction process

[0067] 1. Response surface method optimization research of alkaline hydrolysis extraction process

[0068] The purpose of using alkaline hydrolysis is to remove the protein and fat in Osmanthus chinensis, and to decompose the protein in Osmanthus vetense into small molecular peptides and free amino acids through short-term and low-concentration lye treatment, and the fat is decomposed into glycerol and Salts of fatty acids, which facilitate their removal by diafiltration. In addition, another purpose is to inactivate the previously added α-amylase.

[0069] On the basis of determining the optimal process conditions of α-amylase enzymolysis by response surface method, the single factor experiment of alkali hydrolysis was carried out, and then the single factor experiment results of alkali hydrolysis were integrated, according to the principle of central combination experiment design of Box-Benhnken, t...

Embodiment 3

[0086]1) Degreasing: use a pulverizer to crush the dried vetch, then add ethyl acetate and soak it at room temperature for 3 hours, then use distilled water to remove the residual organic solvent, filter and dry it with suction, then crush it again, pass through 40 mesh Sieve, and put the obtained degreased sample into a dry dish for later use.

[0087] Step 2) α-amylase enzymatic hydrolysis: Soak the degreased dried vetch in water with a mass 10-25 times the degreased vetch dry mass for 20-60 min, then add α-amylase for enzymatic hydrolysis, and filter Obtain filter residue A after the enzymolysis reaction, the added amount of α-amylase is 0.7%, the enzymolysis pH value is 5.8, the enzymolysis temperature is 35°C, and the enzymolysis time is 1.0h; the enzymolysis rate measured after this step is 60.68%.

[0088] Step 3) Alkali hydrolysis: add 0.5mol / L sodium hydroxide solution according to the ratio of material to liquid of 1:10, put it into a constant temperature water bath...

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Abstract

The invention relates to a method for extracting water-insoluble dietary fiber of osmunda cinnamomea. The osmunda cinnamomea is mainly processed through an enzyme-chemical integration mode, starch is removed by using alpha-amylase, the protein removing speed of alkali liquor is accelerated, and then protein and fat are removed by using the alkali liquor. An alpha-amylase enzymolysis process and an alkali liquor hydrolysis process are optimized by means of a response surface method and used for extracting the water-insoluble dietary fiber of the osmunda cinnamomea. The method for extracting the water-insoluble dietary fiber of the osmunda cinnamomea facilitates deep processing study of the osmunda cinnamomea, fully utilizes domestic osmunda cinnamomea resources and exploits a new field forprocessing and utilization of the osmunda cinnamomea.

Description

technical field [0001] The invention relates to the technical field of vegetable processing, in particular to a method for extracting water-insoluble dietary fiber from vetch. Background technique [0002] Cellulose is one of the most abundant macromolecular organic compounds in nature, and it is also an inexhaustible renewable resource. Cellulose contains a large number of hydroxyl groups, and the adsorption of polar water molecules by the hydroxyl groups makes the cellulose have good water holding capacity. Generally speaking, the water holding capacity of high-quality water-insoluble dietary cellulose can be as high as 10 times. In the intestinal tract, cellulose can block food residues and absorb a large amount of water, expand and soften feces, increase fecal volume, and stimulate intestinal peristalsis. Accelerates excretion of feces. Therefore, it can prevent and treat constipation. Due to its excellent water holding capacity and filling effect, it can increase the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L1/212A23L1/308A23L19/00
Inventor 杨华
Owner ZHEJIANG WANLI UNIV
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