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Method for preparing polysaccharide, flavone and dietary fiber of peanut hulls in united manner

A dietary fiber and combined preparation technology, applied in food preparation, food science, drug combination and other directions, can solve the problem of low utilization rate of raw materials, and achieve the effect of reducing environmental pollution

Inactive Publication Date: 2011-05-18
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods only extract a single functional component from peanut shells, and the utilization rate of raw materials is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] After washing and removing impurities from the peanut shells, dry them in an air-blast drying oven at 80°C for 3 hours, crush them, pass through a 50-mesh sieve, and degrease them with ether for later use; weigh the pretreated peanut shell powder, and add it at a material-to-liquid ratio of 1:30 Distilled water, under the condition of frequency 25KHz, power 300W, sonicate for 30min; in the sonicated material, add 0.8% cellulase with enzyme activity 40u / mg and papain 0.5% with enzyme activity 50u / mg %, hydrolyzed for 2h at pH 6.0 and temperature 45°C; heated the hydrolyzed material to 90°C, kept it warm for 1h, and filtered to obtain filtrate A and filter residue B; Concentrate down to 1 / 10 of the original volume, add 3 times the volume of ethyl acetate to the concentrated solution for extraction, and obtain an extract phase and a raffinate phase; recover the ethyl acetate in the extract phase under reduced pressure, and then freeze-dry to obtain Peanut shell flavone cru...

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PUM

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Abstract

The invention relates to a method for preparing active polysaccharide, flavone and dietary fiber in a united manner by taking peanut hulls as raw materials, belonging to the technical field of natural product extraction and comprising the following steps of:carrying out ultrasonic treatment, enzymolysis and filtration on pretreated peanut hull powder by taking water as an extracting agent to obtain filtered liquor and filtered slag; extracting the filtered liquor with an organic solvent after concentrating, and recovering the organic solvent in an extraction phase to obtain a crude flavone product of the peanut hulls; carrying out alcohol precipitation on a raffinate phase to obtain crude polysaccharide of the peanut hulls; and decoloring the filtered slag, cleaning and drying to obtain adietary fiber product of the peanut hulls. The method is simple in process route, and three valuable products such as the polysaccharide, the flavone and the dietary fiber of the peanut hulls are prepared by utilizing the same batch of raw materials, so that the loss of other functional ingredients is avoided when a single product is prepared.

Description

technical field [0001] The invention relates to a method for jointly preparing active polysaccharides, flavonoids and dietary fiber by using peanut shells as raw materials, and belongs to the technical field of natural product extraction. Background technique [0002] my country is a large peanut producing country. During the utilization of peanuts, a large number of by-products of peanut shells are produced, a small part of which is used as roughage or chemical raw materials, and most of them are discarded, resulting in waste of resources and environmental pollution. Peanut shells contain functional ingredients such as polysaccharides, flavonoids, and dietary fiber. Studies at home and abroad have confirmed that plant polysaccharides have anti-oxidation, anti-fatigue, hypoglycemic, anti-tumor, anti-virus, hypolipidemic, and immune-regulating functions; , antibacterial, antiviral and other physiological activities; dietary fiber can increase satiety, and help bowel movement...

Claims

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Application Information

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IPC IPC(8): C12P19/04C12P17/06C12P19/14C08B37/00A23L1/308A61P39/06A61P39/00A61P3/10A61P35/00A61P31/12A61P3/06A61P37/02A61P9/12A61P31/04A23L33/22
Inventor 崔刚陈洪兴
Owner YANCHENG INST OF TECH
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