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Method for extracting soybean oligosaccharides from soybean molasses

A technology for soybean oligosaccharide and soybean molasses is applied in the direction of using physical methods to refine sucrose, production of sugar, food ingredients containing natural extracts, etc., can solve problems such as unfavorable product production, high production cost, expensive equipment, etc. The effect of short cycle time, improved productivity and simple production process

Active Publication Date: 2021-01-26
山东中阳生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the production process of soybean oligosaccharide products on the market is mostly based on membrane separation technology. Membrane separation technology is a new technology that has emerged in recent years. The soybean oligosaccharide obtained by separation and purification has good quality and high yield, but the production cost is relatively high. , the equipment is expensive, and it is easy to cause membrane fouling, which is not conducive to the long-term production of high-quality products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The described method utilizing soybean molasses to extract soybean oligosaccharides comprises the following steps:

[0026] (1) Pretreatment: Dilute the soybean molasses to a soluble solid content of 20%, and stir evenly;

[0027] (2) Deproteinization and reducing sugar treatment: heat and boil the diluted soybean molasses for 5 minutes, add quicklime with a dilution of soybean molasses with a quality of 15‰, stir evenly, and let it stand at 60°C for 20 minutes, then pass in carbon dioxide gas to adjust while stirring The pH of the solution was 7, and it was centrifuged for 15 minutes at a centrifuge speed of 6000r / min, and the supernatant was taken, wherein the protein removal rate was 99.3%, the reducing sugar removal rate was 99.8%, and the soybean oligosaccharide loss rate was 2.5%;

[0028] (3) Decolorization: Cool the supernatant to room temperature, and use macroporous adsorption decolorization resin to decolorize soybean saponin and soybean isoflavone colored su...

Embodiment 2

[0032] The described method utilizing soybean molasses to extract soybean oligosaccharides comprises the following steps:

[0033] (1) Pretreatment: Dilute the soybean molasses to a soluble solid content of 25%, and stir evenly;

[0034] (2) Deproteinization and reducing sugar treatment: heat and boil the diluted soybean molasses for 10 minutes, add quicklime with a dilution of soybean molasses with a quality of 25‰ and stir evenly, let it stand at 80°C for 30 minutes, and then pass in carbon dioxide gas to adjust while stirring The pH of the solution was 7.5, and centrifuged at 10000 r / min for 20 minutes, and the supernatant was taken, wherein the protein removal rate was 99.5%, the reducing sugar removal rate was 99.9%, and the soybean oligosaccharide loss rate was 2.2%;

[0035] (3) Decolorization: Cool the supernatant to room temperature, and use macroporous adsorption decolorization resin to decolorize soybean saponin and soybean isoflavone colored substances to obtain ye...

Embodiment 3

[0039] The described method utilizing soybean molasses to extract soybean oligosaccharides comprises the following steps:

[0040] (1) Pretreatment: Dilute the soybean molasses to a soluble solid content of 22%, and stir evenly;

[0041] (2) Deproteinization and reducing sugar treatment: heat and boil the diluted soybean molasses for 8 minutes, add quicklime with a dilution of soybean molasses with a quality of 20‰ and stir evenly, let stand at 70°C for 25 minutes, and then pass in carbon dioxide gas for adjustment while stirring The pH of the solution was 7.3, and it was centrifuged for 18 minutes at a centrifuge speed of 8000r / min, and the supernatant was taken, wherein the protein removal rate was 99.4%, the reducing sugar removal rate was 99.9%, and the soybean oligosaccharide loss rate was 1.8%;

[0042] (3) Decolorization: Cool the supernatant to room temperature, and use macroporous adsorption decolorization resin to decolorize soybean saponin and soybean isoflavone col...

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Abstract

The invention discloses a method for extracting soybean oligosaccharides by using soybean molasses, belonging to the field of soybean product production. The problem of high reducing sugar content of soybean oligosaccharides produced in the prior art is solved, and the method comprises the following steps: dilute soybean molasses, heat and boil, add quicklime, then pass carbon dioxide gas to adjust the pH of the solution to neutral, and centrifuge to take the supernatant ; The supernatant is cooled to room temperature, and the colored substance is decolorized by using a macroporous adsorption decolorization resin to obtain a slightly yellow or colorless aqueous solution of soybean oligosaccharides; an acidic cationic resin and a basic anionic resin are used for adsorption and desalination treatment to obtain a colorless Color transparent soybean oligosaccharide aqueous solution; under the conditions of vacuum degree of 0.08-0.1MPa and temperature of 50-70°C, use a rotary evaporator or a thin film evaporator to carry out vacuum concentration until the product hangs on the wall to obtain the finished soybean oligosaccharide . The method of the invention is suitable for extracting soybean oligosaccharides from soybean molasses.

Description

technical field [0001] The invention relates to a method for extracting soybean oligosaccharides by using soybean molasses, belonging to the field of soybean product production. Background technique [0002] Soy oligosaccharides are the general term for soluble carbohydrates contained in soybeans. The main components are stachyose, raffinose and sucrose, and their dry weight contents in soybean oligosaccharides are 24%, 8%, and 39% respectively . The main functional ingredients raffinose and stachyose have the functions of laxative and intestinal cleansing, promoting the reproduction of bifidobacteria in the intestine, and lowering serum cholesterol. The existing soybean oligosaccharide finished products generally have a reducing sugar content of more than 10%, which is not suitable for people with diabetes, high blood sugar, high blood pressure, high blood fat and obesity. [0003] The existing process of using soybean molasses to extract soybean oligosaccharides has low ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C13K13/00C13B35/08A23L33/125A23L33/105
CPCA23V2002/00A23L33/105A23L33/125C13B35/08C13K13/007A23V2200/328A23V2200/326A23V2200/332A23V2250/21
Inventor 管勇佳杨磊磊杜现祥姜自强安玉辉张玉琛
Owner 山东中阳生物科技有限公司
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