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Method for improving yield and quality of kidney bean residue DF

A kidney bean and quality technology, applied in the field of improving the yield and quality of kidney bean dregs DF, can solve the problems of high cost, low yield and quality of kidney bean dregs, low yield, etc. rate effect

Inactive Publication Date: 2021-11-19
HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the enzyme extraction method has mild conditions, energy saving and environmental protection, it has certain limitations due to its high cost and low output.
The composite extraction method can better avoid the shortcomings of the single modification method, achieve environmental protection and energy saving, reduce pollution, and obtain the best dietary fiber. However, there is currently no composite extraction method for improving the yield and quality of dietary fiber in kidney bean dregs. Law
[0005] Therefore, it is necessary to develop a method aimed at improving the yield and quality of dietary fiber in kidney bean dregs, to solve the technical problems of low yield and quality of DF in kidney bean dregs, to improve the economic effect of kidney bean by-product-kidney bean dregs, and to avoid resources waste

Method used

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  • Method for improving yield and quality of kidney bean residue DF
  • Method for improving yield and quality of kidney bean residue DF
  • Method for improving yield and quality of kidney bean residue DF

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Step 1: Dry the kidney bean dregs at 70°C, crush them, pass through a 40-mesh sieve, mix them with petroleum ether at a material-to-liquid ratio of 1 g: 5 mL, stir and degrease for 5 hours, and repeat the degreasing step twice to obtain defatted kidney bean dregs;

[0055] Step 2, put okara and water into a conical flask according to 1g:20mL, inoculate Lactobacillus plantarum, Streptococcus acidophilus, Bifidobacterium and Lactobacillus rhamnosus=1:1:1:1 mixed strains, inoculate 3.68%, fermented at 37°C for 21.4 hours, rinsed with water at 70°C until neutral, then dried at 70°C, crushed, and passed through a 40-mesh sieve to obtain fermented modified kidney bean dregs;

[0056] Step 3: Weigh 10 g of fermented modified kidney bean dregs and add it to 100 mL of distilled water, adjust the pH to 8.5 with sodium hydroxide, add alkaline protease with 1% mass of the modified kidney bean dregs, and sonicate at 60°C and 25W for 25 minutes, the enzyme Then use 2mol / L hydrochlori...

Embodiment 2

[0064] Step 1: Dry the kidney bean dregs at 65°C, crush them, pass through a 40-mesh sieve, mix them with petroleum ether at a material-to-liquid ratio of 1 g: 5 mL, stir and degrease for 4 hours, and repeat the degreasing step twice to obtain defatted kidney bean dregs;

[0065] Step 2, put okara and water into a conical flask according to 1g:20mL, inoculate Lactobacillus plantarum, Streptococcus acidophilus, Bifidobacterium and Lactobacillus rhamnosus=1:1:1:1 mixed strains, inoculate After fermenting at 37°C for 21.4 hours, rinse the kidney bean dregs with water at 70°C until neutral, then steam at 100°C for 25 minutes, then dry at 65°C, crush, and pass through a 40-mesh sieve , to obtain fermented modified kidney bean dregs;

[0066] Step 3: Weigh 10 g of fermented modified kidney bean dregs and add it to 100 mL of distilled water, adjust the pH to 8 with sodium hydroxide, add alkaline protease with 1% mass of the modified kidney bean dregs, and perform ultrasonic hydrolysi...

Embodiment 3

[0071] Step 1: Dry the kidney bean dregs at 80°C, crush them, pass through a 40-mesh sieve, mix them with petroleum ether at a material-to-liquid ratio of 1 g: 5 mL, stir and degrease for 6 hours, and repeat the degreasing step twice to obtain defatted kidney bean dregs;

[0072] Step 2, put okara and water into a conical flask according to 1g:20mL, inoculate Lactobacillus plantarum, Streptococcus acidophilus, Bifidobacterium and Lactobacillus rhamnosus=1:1:1:1 mixed strains, inoculate After fermentation at 37°C for 21.4 hours, the kidney bean dregs were rinsed with water at 70°C until neutral, then dried at 80°C, crushed, and passed through a 40-mesh sieve to obtain fermented modified kidney bean dregs;

[0073] Step 3: Weigh 10 g of fermented modified kidney bean dregs and add it to 100 mL of distilled water, adjust the pH to 9 with sodium hydroxide, add alkaline protease with 1% mass of the modified kidney bean dregs, and ultrasonically hydrolyze at 60°C and 25W for 25 minut...

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Abstract

The invention discloses a method for improving yield and quality of kidney bean residue DF, and belongs to the field of food. The method comprises the following steps: step 1, carrying out fermentation modification on kidney bean residues; and step 2, performing ultrasonic and enzymolysis treatment on the kidney bean residues modified in the step 1 to obtain the kidney bean residues DF. According to the method, the kidney bean residues are fermented and modified through a compound bacterium system, IDF in the kidney bean residues is converted into SDF, the content of the SDF in the kidney bean residues is increased, meanwhile, structural characteristics of the SDF and the IDF in the kidney bean residues are changed, and the physicochemical characteristics of the kidney bean residues are improved; and SDF and IDF in the kidney bean residues are compositely extracted by using an ultrasonic-assisted enzyme method, so that the final yield of dietary fibers is increased; and according to the method, the yield of the kidney bean residues DF is increased, and the quality of the kidney bean residues DF is improved.

Description

technical field [0001] The invention relates to the field of food, in particular to a method for improving the yield and quality of kidney bean dregs DF. Background technique [0002] As the "seventh nutrient", dietary fiber (DF) has increasingly prominent physiological functions such as regulating metabolism of the body. According to whether it is soluble in water, dietary fiber can be divided into two categories: one is water-soluble dietary fiber (SDF), which is the storage and secretion in the cell wall, mainly including soluble hemifiber, guar gum, sodium alginate , natural pectin, dextran and fungal polysaccharides, etc.; the other is water-insoluble dietary fiber (IDF), which is a component of the cell wall, mainly including lignin, cellulose, hemicellulose and chitosan. There are differences in the physiological functions of SDF and IDF, and if excessive dietary fiber intake will cause certain side effects to the human body, nutritionists have regulations on their d...

Claims

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Application Information

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IPC IPC(8): A23L33/22A23L11/50A23L5/30A23L29/00A23L11/30
CPCA23L33/22A23L11/50A23L5/32A23L29/06A23L11/34A23V2002/00A23V2250/5116A23V2300/48
Inventor 王颖孙维佐兆杭张艳莉沈琰庞惟俏张乃丹
Owner HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
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