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Insoluble dietary fiber as well as preparation method and application thereof

A dietary and soluble technology, applied in the fields of food science, pharmaceutical formulations, organic active ingredients, etc., can solve the problems of undeveloped added value, biological activity impact, insufficient removal effect, etc.

Pending Publication Date: 2022-04-12
SERICULTURE & AGRI FOOD RES INST GUANGDONG ACAD OF AGRI SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reaction of the chemical treatment method is relatively strong, which will destroy the structure of the product (especially the functional group) and significantly affect its biological activity; the enzymatic hydrolysis method generally uses neutral protease, high-temperature amylase, glucoamylase and other hydrolysis to remove non-target It has the advantages of mild conditions and easy control, high extraction rate, environmental friendliness, and high product activity, but it has insufficient removal effect on digestible components and other soluble components such as pigments in high-starch and high-protein raw materials
[0004] Starch-specific water chestnuts are widely planted in Guangdong, Guangxi and other regions. They are mainly used to prepare food materials such as horseshoe starch and horseshoe powder. Horseshoe residue is the main by-product of horseshoe starch production. It is rich in protein 5.16g / 100g (dry basis) , starch 9.37g / 100g (dry basis), crude fiber 8.58g / 100g (dry basis), currently mainly sold by factories at a low price to farms as feed, and its added value is basically undeveloped

Method used

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  • Insoluble dietary fiber as well as preparation method and application thereof
  • Insoluble dietary fiber as well as preparation method and application thereof
  • Insoluble dietary fiber as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Embodiment 1 A kind of preparation method of water chestnut slag insoluble dietary fiber

[0063] (1) Wash the silt of fresh starch-specific horseshoes, beat through a single-channel beater, and filter to obtain horseshoe slag.

[0064] (2) Dissolve water chestnut powder and 90°C hot water at a ratio of 1:2 (mass ratio) to obtain horseshoe starch slurry, and inoculate Bacillus subtilis (purchased from Guangdong Provincial Microbial Culture Collection Center, GDMCC 1.784) into water containing water horseshoe starch slurry In the liquid culture medium, the liquid culture medium contains 1wt% of glucose, 20wt% of horseshoe starch slurry, 0.6wt% of peptone, 0.3wt% of yeast extract, and 0.8wt% of calcium carbonate, and cultured in a constant temperature shaker at 35°C for 32h to obtain liquid strains.

[0065] (3) After mixing horseshoe slag and water according to the material-to-liquid ratio of 2:1 (mass ratio), 60-mesh wet ultrafine pulverization, heating to 95°C for 3 mi...

Embodiment 2

[0070] Embodiment 2 A kind of preparation method of water chestnut slag insoluble dietary fiber

[0071] (1) Wash the silt of fresh starch-specific horseshoes, beat through a single-channel beater, and filter to obtain horseshoe slag.

[0072] (2) Dissolving water chestnut powder and 90°C hot water at 1:2.5 (mass ratio) to obtain horseshoe starch slurry, inoculating Bacillus subtilis into a liquid culture medium containing water horseshoe starch slurry, the liquid medium contains glucose 1wt%, 20wt% horseshoe starch slurry, 0.6wt% peptone, 0.3wt% yeast extract, 0.8wt% calcium carbonate were cultured on a constant temperature shaker at 35°C for 24 hours to obtain liquid strains.

[0073] (3) After mixing horseshoe slag and water according to the material-to-liquid ratio of 2:1 (mass ratio), 60-mesh wet ultrafine pulverization, heating to 95°C for 3 minutes, cooling, adding 1v / v% liquid bacteria at 35°C Oxygen fermentation was carried out for 16 hours, and after fermentation, i...

Embodiment 3

[0078] Embodiment 3 A kind of preparation method of water chestnut slag insoluble dietary fiber

[0079] (1) Wash the silt of fresh starch-specific horseshoes, beat through a single-channel beater, and filter to obtain horseshoe slag.

[0080] (2) Dissolve water chestnut powder and 90°C hot water at 1:3 (mass ratio) to obtain horseshoe starch slurry, inoculate Bacillus subtilis into a liquid medium containing water chestnut starch slurry, and the liquid medium contains 1 wt% of glucose, 20wt% horseshoe starch slurry, 0.6wt% peptone, 0.3wt% yeast extract, 0.8wt% calcium carbonate were cultured on a constant temperature shaker at 35°C for 36h to obtain liquid strains.

[0081] (3) Mix horseshoe slag and water according to the material-to-liquid ratio of 2:1 (mass ratio), then 60 mesh wet ultrafine pulverization, heat to 95°C for 3 minutes and then cool, add 2v / v% liquid bacteria at 35°C Oxygen fermentation was carried out for 12 hours, and after fermentation, it was dehydrated ...

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Abstract

The invention belongs to the technical field of deep processing of agricultural products, and discloses an insoluble dietary fiber as well as a preparation method and application thereof. The invention discloses the preparation method of the insoluble dietary fiber for the first time, green extraction technologies such as bacillus subtilis fermentation, ultrasonic-assisted composite enzymolysis and ultrahigh-pressure-assisted extraction are adopted, pomace raw materials with high starch content and high protein content can be prepared without using any acid-base chemical reagent, and the insoluble dietary fiber can be obtained. Environment-friendly extraction is beneficial to environment protection, and the yield, the water-holding capacity, the swelling capacity, the NO2 <-> adsorption capacity and the cholesterol adsorption capacity of the pomace insoluble dietary fibers can be remarkably improved. The obtained insoluble dietary fiber can be used for preparing food, medicines and health care products.

Description

technical field [0001] The invention belongs to the technical field of intensive processing of agricultural products, and in particular relates to an insoluble dietary fiber and its preparation method and application. Background technique [0002] Dietary fiber is a kind of polysaccharide, which is identified as the seventh type of nutrient, mainly including cellulose, hemicellulose, pectin and other monomer components. According to its solubility in water, dietary fiber can be divided into two categories: soluble dietary fiber and insoluble dietary fiber. Soluble dietary fiber mainly includes storage substances and secretions in cell walls and synthetic polysaccharides, etc. Insoluble dietary fiber mainly includes plant cell wall components, including lignin, cellulose and some hemicelluloses. [0003] The key to the extraction and preparation of insoluble dietary fiber is to effectively remove digestible components such as protein, fat and starch in the raw materials. At ...

Claims

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Application Information

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IPC IPC(8): A23L33/24A23L29/00A23L5/30A61K31/717A61K8/73A61Q19/00
Inventor 卜智斌徐玉娟曾劲周晓永余元善温靖周晓刚
Owner SERICULTURE & AGRI FOOD RES INST GUANGDONG ACAD OF AGRI SCI