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A method for extracting and preparing meal fibre from the peach dregs

A technology of dietary fiber and peach pits, which is applied in the field of deep processing of agricultural and sideline product waste, to achieve the effects of reducing preparation costs, promoting proliferation, and preventing obesity

Inactive Publication Date: 2008-10-15
CHINA NAT RES INST OF FOOD & FERMENTATION IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no technical report on the preparation of soluble dietary fiber and insoluble dietary fiber by extracting fresh peach residue as raw material

Method used

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  • A method for extracting and preparing meal fibre from the peach dregs
  • A method for extracting and preparing meal fibre from the peach dregs
  • A method for extracting and preparing meal fibre from the peach dregs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for extracting and preparing dietary fiber from peach residue, comprising the steps of:

[0033] Impurity removal and sterilization: Weigh 1000g of wet peach residue and add 4000g of water, stir well to disperse the material evenly, remove the peach pit after it has completely settled at the bottom of the container, and then sterilize the feed solution at 60°C for 30 minutes;

[0034] Insulation extraction: Put the cleaned and sterilized materials into an airtight container, and extract at a temperature of 30°C for 2 hours to dissolve the soluble dietary fiber into the water;

[0035] Solid-liquid separation: Squeeze and filter the material liquid after heat preservation and leaching to obtain filtrate and filter cake. The volume of the filtrate is 4250ml, and the weight of the filter cake is 513g;

[0036] Vacuum concentration: Concentrate the filtrate to 870ml at a temperature of 60°C and a vacuum of 0.09Mpa;

[0037] Alcohol precipitation and suction filtra...

Embodiment 2

[0047] A method for extracting and preparing dietary fiber from peach residue, comprising the steps of:

[0048] (1) Impurity removal and sterilization: Stir the peach dregs with water at a mass ratio of 1:2 to disperse the material evenly, remove the broken peach pits after they have completely settled at the bottom of the container, and sterilize the feed liquid at 80°C for 30 minutes ;

[0049] (2) Insulation extraction: put the sterilized feed liquid in a closed container, and extract at 60°C for 1 hour;

[0050] (3) Solid-liquid separation: filter the feed liquid after heat preservation and leaching to obtain filtrate and filter cake;

[0051] (4) Concentrate the filtrate to 1 / 4 of the volume of the original filtrate to obtain a concentrated solution; add 5 times the volume of 85% ethanol aqueous solution to the concentrated solution for alcohol precipitation, separate out the precipitate, and dry the precipitate to obtain a soluble meal fiber;

[0052] (5) Mix the filte...

Embodiment 3

[0054] A method for extracting and preparing dietary fiber from peach residue, comprising the steps of:

[0055] (1) Impurity removal and sterilization: Stir the peach dregs with water at a mass ratio of 1:10 to disperse the material evenly, remove the broken peach pits after they have completely settled at the bottom of the container, and sterilize the feed liquid at 60°C for 30 minutes ;

[0056] (2) Insulation extraction: put the sterilized feed liquid in a closed container, and extract at 40°C for 10 hours;

[0057] (3) Solid-liquid separation: filter the feed liquid after heat preservation and leaching to obtain filtrate and filter cake;

[0058] (4) Concentrate the filtrate to 1 / 5 of the volume of the original filtrate to obtain a concentrated solution; add 3 times the volume of 95% ethanol aqueous solution to the concentrated solution for alcohol precipitation, separate out the precipitate, and dry the precipitate to obtain a soluble meal fiber;

[0059] (5) Mix the ...

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Abstract

The invention discloses a method for extracting dietary fibers from peach residue. The method comprises the following steps: (1) impurity removal and sterilization: dispersing peach residue iin water, removing crushed peach stones and sterilizing; (2) lixiviation under heat insulation; (3) solid-liquid separation to obtain filtrate and filter cake; (4) concentration and ethanol precipitation of filtrate and drying of precipitates, to obtain soluble dietary fibers; and (5) mixing filter cake and warter, adjusting pH to 4-5, digesting with compound enzymes at 40-50 DEG C for 10-20 hours, filtering, collecting filtrate and filter cake after enzymolysis, concentrating filtrate after enzymolysis, precipitating with ethanol, drying the precipitates to obtain soluble dietary fibers, drying the filter cake after enzymolysis to obtain insoluble dietary fibers. The invention increases the yield of soluble dietary fibers, reduces the energy consumption, production cycle and production cost, simplifies the operation, doesn't need strict working conditions such as high temperature and pressure and strong acid and base, has no strict requirement for equipment, and is environment-friendly.

Description

technical field [0001] The invention belongs to the field of deep processing of agricultural and sideline product waste, and relates to a method for extracting dietary fiber from peach dregs discarded after peach processing. Background technique [0002] Dietary Fiber (DF for short) refers to the sum of plant cells, polysaccharides, lignin and other substances in food that cannot be digested and absorbed by human endogenous enzymes. According to the solubility in water, it is divided into insoluble dietary fiber (Insoluble Dietary Fiber referred to as IDF) and soluble dietary fiber (Soluble Dietary Fiber referred to as SDF). Insoluble dietary fiber has the effect of preventing obesity, constipation, and colon cancer, and soluble dietary fiber can lower serum cholesterol, inhibit postprandial blood sugar, and improve intestinal flora. [0003] At present, the dietary fiber sold on the market is mainly made of grain seed coats, such as corn bran, soybean hulls, wheat bran, et...

Claims

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Application Information

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IPC IPC(8): A23L1/212A23L1/28A23L1/308A23L33/21
Inventor 刘凌孙慧崔明学吴娜周明
Owner CHINA NAT RES INST OF FOOD & FERMENTATION IND CO LTD
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