Extraction method of soluble dietary fiber in soybean dregs

A technology of dietary fiber and extraction method, which is applied in the directions of food extraction, function of food ingredients, bacteria used in food preparation, etc., can solve problems such as low soluble dietary fiber content, and achieve the effects of low cost and simple extraction process.

Inactive Publication Date: 2016-11-16
周荣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem to be solved by the present invention: Aiming at the problem that the total dietary fiber content of bean dregs is high, but the content of soluble dietary fiber is very low, the present invention provides a method for extracting soluble dietary fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] Weigh 20 g of fresh okara and add it to 40-50 mL of deionized water, stir at 100 r / min for 1 h, vacuum filter, take the filtrate, and add 40 mL of an aqueous solution of skimmed milk powder with a mass concentration of 10% to the filtrate, stir and mix for 20 min to obtain a mixed liquid, According to the inoculation amount of 5%, inoculate Lactobacillus bulgaricus and Streptococcus thermophilus into 30mL mixed solution respectively, and cultivate them until curdling at 35°C to obtain activated bacterial liquid of Lactobacillus bulgaricus and Streptococcus thermophilus; weigh 200g of fresh Add okara to 400mL of deionized water, stir at 100r / min for 1h, vacuum filter, take the filtrate, add 40mL of 10% skimmed milk powder aqueous solution to the filtrate, stir and mix for 20min to obtain a mixed solution, the inoculum size is 5%, Inoculate Lactobacillus bulgaricus and Streptococcus thermophilus into 30mL of the mixed solution, culture it until curdling at 35°C, and mix th...

example 2

[0019]Weigh 22g of fresh bean dregs into 45mL of deionized water, stir at 110r / min for 1.5h, vacuum filter, take the filtrate, and add 45mL of a mass concentration of 10% skimmed milk powder aqueous solution to the filtrate, stir and mix for 25min to obtain a mixed solution, press The inoculum amount was 5.5%, respectively inoculated Lactobacillus bulgaricus and Streptococcus thermophilus into 32mL of the mixed solution, cultured at 36°C until the curdled milk was obtained, and the activated bacterial liquid of Lactobacillus bulgaricus and Streptococcus thermophilus was obtained; weigh 220g of fresh okara Add 450mL of deionized water, stir at 110r / min for 1.5h, vacuum filter, take the filtrate, and add 45mL of 10% skimmed milk powder aqueous solution to the filtrate, stir and mix for 25min to obtain a mixed solution, according to the inoculum size of 5.5%, Inoculate Lactobacillus bulgaricus and Streptococcus thermophilus into 32mL of the mixed solution, culture at 36°C until cu...

example 3

[0022] Weigh 25g of fresh bean dregs into 50mL of deionized water, stir at 120r / min for 2h, vacuum filter, take the filtrate, and add 50mL of 10% skimmed milk powder aqueous solution to the filtrate, stir and mix for 30min to obtain a mixed solution, press the inoculation 6% of Lactobacillus bulgaricus and Streptococcus thermophilus were respectively inoculated into 35mL of the mixed liquid, and cultured at 37°C until curdled milk was obtained to obtain the activated bacterial liquid of Lactobacillus bulgaricus and Streptococcus thermophilus; weigh 250g of fresh okara and add Stir in 500mL of deionized water at 120r / min for 2h, vacuum filter, take the filtrate, and add 50mL of 10% skimmed milk powder aqueous solution to the filtrate, stir and mix for 30min to obtain a mixed solution, according to the inoculum size of 6%, respectively Inoculate Lactobacillus bulgaricus and Streptococcus thermophilus into 35mL of the mixed liquid, culture at 37°C until curdling, and mix the domes...

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Abstract

The invention relates to an extraction method of soluble dietary fiber in soybean dregs, belonging to the technical field of dietary fiber. Aiming at the problems that the content of total dietary fiber in the soybean dregs is relatively high, but the content of the soluble dietary fiber in the soybean dregs is very low, the invention provides the extraction method of the soluble dietary fiber in the soybean dregs. The method provided by the invention comprises the following steps: culturing and activating lactobacillus bulgaricus and streptococcus thermophilus by using soybean dreg juice and skimmed milk powder aqueous solution; carrying out domestication and mixing to prepare mixed bacterial liquid; inoculating the mixed bacterial liquid into soybean dreg mixed liquid; carrying out fermentation; hydrolyzing multiple macromolecular substances in the soybean dregs so as to improve the yield of the soluble dietary fiber in the soybean dregs; sterilizing the fermented soybean dregs, and then carrying out mixed hydrolysis on the sterilized soybean dregs and cellulase so as to further improve the yield of the soluble dietary fiber in the soybean dregs; and carrying out filtering, concentration, alcohol precipitation, drying and grinding so as to prepare the soluble dietary fiber in the soybean dregs.

Description

technical field [0001] The invention relates to a method for extracting soluble bean dregs dietary fiber, which belongs to the technical field of dietary fiber. Background technique [0002] Dietary fiber is a general term for indigestible plant components in food that are not decomposed by human gastrointestinal digestive enzymes. It is called the "seventh largest nutrient", including soluble dietary fiber and insoluble dietary fiber. Dietary fiber has important physiological functions for human health, such as lowering cholesterol and preventing obesity. Dietary fiber in a broad sense refers to the sum of edible plant cells, polysaccharides, lignin and related substances that cannot be digested and absorbed by human endogenous enzymes, including a large number of components in food such as cellulose, hemicellulose, lignin, gum, etc. quality, modified cellulose, mucilage, oligosaccharides, pectin and a small amount of components such as wax and cork. According to their di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23L33/22
CPCA23V2002/00A23V2400/123A23V2400/249A23V2200/326A23V2200/328A23V2250/21A23V2300/14
Inventor 周荣王龙
Owner 周荣
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