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A preparation method for extracting soluble and insoluble dietary fiber from wild jujube dregs

A soluble dietary fiber and soluble technology, which is applied in the field of preparation of soluble and insoluble dietary fiber in extracting wild jujube dregs

Active Publication Date: 2018-03-27
SHAANXI UNIV OF CHINESE MEDICINE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a preparation method for extracting soluble and insoluble dietary fiber from jujube dregs, which not only solves the technical difficulties in extracting dietary fiber from jujube dregs, but also can make full use of waste jujube dregs to improve the effective utilization of resources

Method used

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  • A preparation method for extracting soluble and insoluble dietary fiber from wild jujube dregs
  • A preparation method for extracting soluble and insoluble dietary fiber from wild jujube dregs
  • A preparation method for extracting soluble and insoluble dietary fiber from wild jujube dregs

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Experimental program
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Effect test

Embodiment 1

[0065] (1) Drying and pulverizing the degreasing, decolorizing, and extracting the jujube pulp slag to obtain the jujube pulp powder;

[0066] (2) The KOH solution with a mass concentration of 7% and the jujube fruit pulp powder obtained in step (1) are 8:1 according to the mass ratio, the alkali hydrolysis temperature is 90 ° C, and after the alkali hydrolysis time is 70 minutes, the filter residue and the filtrate are obtained by suction filtration;

[0067] (3) Take the filtrate in step (2) to adjust the pH to 7, concentrate, add 5 times the amount of 95% ethanol, and filter with suction to obtain a precipitate, which is the water-soluble dietary fiber of jujube pulp;

[0068] (4) Take the filter residue in step (2) and decolorize it with 5% hydrogen peroxide, adjust the pH to be 7, suction filter, wash the filter residue with water, wash with ethanol, and dry to obtain the jujube insoluble dietary fiber.

Embodiment 2

[0070] (1) Drying and pulverizing the degreasing, decolorizing, and extracting the jujube pulp slag to obtain the jujube pulp powder;

[0071] (2) The KOH solution with a mass concentration of 8% and the jujube fruit pulp powder obtained in step (1) are 9:1 according to the mass ratio, the alkali hydrolysis temperature is 70 ° C, and after the alkali hydrolysis time is 50 minutes, the filter residue and the filtrate are obtained by suction filtration;

[0072] (3) Take the filtrate in step (2) to adjust the pH to 7, concentrate, add 4 times the amount of 95% ethanol, and filter with suction to obtain a precipitate, which is the water-soluble dietary fiber of jujube pulp;

[0073] (4) Get the filter residue in step (2) and decolorize it with 6% hydrogen peroxide, adjust the pH to be 7, carry out suction filtration, wash the filter residue with water, wash with ethanol, and dry to obtain the jujube insoluble dietary fiber.

Embodiment 3

[0075] (1) Drying and pulverizing the degreasing, decolorizing, and extracting the jujube pulp slag to obtain the jujube pulp powder;

[0076] (2) the KOH solution with a mass concentration of 6% and the jujube fruit pulp powder obtained in step (1) are 7:1 according to the mass ratio, the alkali hydrolysis temperature is 80 ° C, and after the alkali hydrolysis time is 70 minutes, the filter residue and the filtrate are obtained by suction filtration;

[0077] (3) Take the filtrate in step (2) to adjust the pH to 7, concentrate, add 4 times the amount of 95% ethanol, and filter with suction to obtain a precipitate, which is the water-soluble dietary fiber of jujube pulp;

[0078] (4) Get the filter residue in step (2) and decolorize it with 4% hydrogen peroxide, adjust the pH to be 7, carry out suction filtration, wash the filter residue with water, wash with ethanol, and dry to obtain the jujube insoluble dietary fiber.

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Abstract

The invention provides a preparation method for extracting soluble and insoluble dietary fiber from jujube dregs. The method uses jujube dregs as raw materials and adopts alkali hydrolysis and alcohol precipitation method to prepare water-soluble dietary fiber and water-insoluble dietary fiber. The invention uses the waste jujube dregs as raw materials, solves the technical difficulty of extracting dietary fiber from the jujube dregs, and improves the effective utilization rate of resources.

Description

technical field [0001] The invention belongs to the technical field of traditional Chinese medicines, and in particular relates to a preparation method for extracting soluble and insoluble dietary fibers from jujube dregs. Background technique [0002] Dietary fiber refers to the general term of polysaccharide carbohydrates and lignin that are not digested by the human body, but play an important role in human health, and are called "the seventh nutrient for the human body". Dietary fiber can be divided into two categories: water-soluble dietary fiber (SDF) and water-insoluble dietary fiber (IDF). It is mainly some gums and sugars; while the main components of IDF are cellulose, hemicellulose, lignin, protopectin and chitosan. SDF has high water holding capacity and high viscosity, and can be better fermented and utilized by intestinal microbial flora. It has excellent characteristics in reducing postprandial blood sugar and adsorbing cholesterol; It has beneficial effects...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23L33/21
Inventor 唐志书张严磊段金廒宋忠兴
Owner SHAANXI UNIV OF CHINESE MEDICINE
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