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Water-soluble radix puerariae fiber oligosaccharide and preparing method thereof

A technology of kudzu root fiber and oligosaccharides, which is applied in the preparation of kudzu root fiber oligosaccharides and the field of water-soluble kudzu root fiber oligosaccharide mixtures, which can solve the problems of reducing the accessibility of cellulose, affecting applications, and environmental pollution. Glucose production, improved accessibility, good water solubility effects

Active Publication Date: 2016-03-23
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

[0005] At present, the preparation of cellooligosaccharides mainly adopts two methods: acid hydrolysis and enzymatic hydrolysis. The preparation process of acid hydrolysis is relatively mature, but the purification process is relatively complicated, and a large amount of waste acid will be produced during the production process, which is easy to cause environmental pollution. Moreover, the high-temperature process of acid hydrolysis may also produce harmful by-products to the human body, which will affect its application in the field of food and medicine; the preparation of cellooligosaccharides by enzymatic hydrolysis avoids the defects of acid hydrolysis, but because the natural cellulose structure is dense and even forms crystallization area, thereby reducing the accessibility of cellulase to cellulose, resulting in inefficient enzymatic hydrolysis of cellulose and low yield of cellooligosaccharides

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Prepare a kind of water-soluble kudzu root cellooligosaccharide according to the following steps:

[0030] 1. Using pueraria slag, a by-product of kudzu starch production, as raw material, wash the kudzu slag 3 times with flowing purified water to wash away the starch granules intermingled between the fibers; after cleaning, put it in a centrifuge to dry the water, and then put it in beating In the machine, add purified water with 3 times the weight of the kudzu root slag for crushing to obtain the kudzu root slag slurry.

[0031] 2. Put the obtained kudzu root slurry in an electric heating oil bath, rotate and soak at 85°C for 30 minutes, then raise the temperature to 180°C at a rate of 2°C / min, and keep it for 80 minutes for steam precooking; after steam precooking After the kudzu root slurry is cooled to normal temperature, the kudzu root fiber slag with loose physical structure is obtained by suction filtration.

[0032] 3. Add an appropriate amount of purified wat...

Embodiment 2

[0037] Prepare a kind of water-soluble kudzu root cellooligosaccharide according to the following steps:

[0038] 1. Using kudzu root slag, a by-product of kudzu root starch production, as raw material, wash the kudzu root slag twice with flowing purified water to wash away the starch granules intermingled between the fibers; after cleaning, put it in a centrifuge to dry off the water, and then put it in beating In the machine, add purified water with 5 times the weight of the kudzu root slag and grind it to obtain the kudzu root slag slurry.

[0039]2. Put the obtained kudzu root slurry in an electric heating oil bath, rotate and soak at 80°C for 40 minutes, then raise the temperature to 170°C at a rate of 2°C / min, and keep it for 90 minutes for steam precooking; after steam precooking After the kudzu root slurry is cooled to normal temperature, the kudzu root fiber slag with loose physical structure is obtained by suction filtration.

[0040] 3. Add an appropriate amount of...

Embodiment 3

[0045] Prepare a kind of water-soluble kudzu root cellooligosaccharide according to the following steps:

[0046] 1. Using pueraria slag, a by-product of kudzu starch production, as raw material, wash the kudzu slag 3 times with flowing purified water to wash away the starch granules intermingled between the fibers; after cleaning, put it in a centrifuge to dry the water, and then put it in beating In the machine, add purified water with 4 times the weight of the kudzu root slag for crushing to obtain the kudzu root slag slurry.

[0047] 2. Put the obtained kudzu root slurry in an electric heating oil bath, rotate and soak at 83°C for 35 minutes, then raise the temperature to 160°C at a rate of 2°C / min, and keep it for 100 minutes for steam precooking; after steam precooking After the kudzu root slurry is cooled to normal temperature, the kudzu root fiber slag with loose physical structure is obtained by suction filtration.

[0048] 3. Add an appropriate amount of purified wa...

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Abstract

The invention discloses water-soluble radix puerariae fiber oligosaccharide and a preparing method thereof. The preparing method includes the steps that 1, radix puerariae residues are adopted as a raw material, water is added, and the radix puerariae residues are smashed in a stirred mode to obtain radix puerariae residue pulp; 2, the radix puerariae residue pulp is placed in an electric heating oil bath pan for steam precooking, and radix puerariae fiber residues are obtained through suction filtration; 3, the radix puerariae fiber residues are prepared into radix puerariae fiber residue pulp; 4, the radix puerariae fiber residue pulp is subjected to enzyme hydrolysis for two times and treated ultrasonically and supplementarily to obtain radix puerariae fiber hydrolysate; 5, membrane separation is carried out on the radix puerariae fiber hydrolysate obtained after enzyme hydrolysis is conducted for two times, fiber oligosaccharide with the polymerization degree of 2-5 is enriched, and the good-water-solubility fiber oligosaccharide with the polymerization degree of 2-5 can be prepared. The water-soluble radix puerariae fiber oligosaccharide can serve as prebiotics to be applied to related functional food and medicine, new resources are developed, and a new way is provided for full utilization of radix puerariae.

Description

technical field [0001] The invention relates to a kudzu root cellooligosaccharide, in particular to a water-soluble kudzu root fiber oligosaccharide mixture with a polymerization degree of 2 to 5, and also relates to a preparation method of the kudzu root cellooligosaccharide. Background technique [0002] Pueraria lobata is the root of the Pueraria genus in the leguminous family. As a product that is both food and medicine, it has been recorded in the first medical monograph "Shen Nong's Materia Medica" more than 2,000 years ago. It is a commonly used traditional Chinese medicine and also belongs to my country's health The common resources of medicine and food announced by the Ministry of Health. Studies have shown that isoflavones such as puerarin, puerarin xyloside, genistein, daidzein, daidzein and other isoflavones are its main active ingredients, which have the functions of lowering blood fat, blood sugar, blood alcohol, anti-aging, anti-inflammatory Cancer, anti-fatig...

Claims

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Application Information

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IPC IPC(8): A23L33/21A23L29/00A23L5/30A23L5/10
CPCA23V2002/00A23V2200/3202A23V2250/28A23V2300/48A23V2300/50
Inventor 张雁池建伟张名位唐小俊邓媛元刘磊李健雄魏振承
Owner SERICULTURE & AGRI FOOD RES INST GUANGDONG ACAD OF AGRI SCI
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