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Method for producing soybean isoflavone by utilizing soybean molasses

A technology of soybean isoflavones and soybean molasses, which is applied in the direction of organic chemistry, can solve the problems of complex production process, difficult extraction, and application limitations, and achieve the effects of shortening the process route, saving soybean resources, and reducing production costs

Inactive Publication Date: 2014-08-06
荆门市德爱生物工程股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 1. The production process of soybean isoflavones using soybean meal as raw material is complicated, especially when a large amount of organic solvent is used in extraction and extraction, and the energy consumption and production cost are high when recovering the solvent
[0007] 2. To produce soybean isoflavones with soybean meal as raw material, methanol is generally used as the extraction solution, and the safety problems caused by methanol residue limit the application of soybean isoflavone products produced by it and by-product residues in the production process.
[0008] 3. The production of soybean isoflavones using soybean meal as raw material occupies valuable soybean resources, and the content of soybean isoflavones in soybean meal is very low, making extraction difficult and the production process difficult to control

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0038] Get 1000L soybean molasses, add water to dilute, and adjust the sugar content of the diluted molasses water to be 10%. While stirring, slowly add 1N hydrochloric acid solution to adjust the pH value of the dilute molasses water to 3.8. Heat up to 65°C, keep warm for 60 minutes and then cool to room temperature. Centrifuge with a decanter tripod centrifuge, collect the supernatant for column chromatography, and rinse with 70% alcohol solution. The eluate was collected, evaporated under negative pressure, the evaporation temperature was 70°C, the vacuum degree was 0.02MPa, the alcohol was recovered, and a soybean isoflavone paste with a solid content of 25% was obtained. Add 8 times the volume of 95% alcohol to the soybean isoflavone paste, stir for 30 minutes, and let it settle. The supernatant was collected, and the alcohol was recovered under negative pressure to obtain a soybean isoflavone paste. The soy isoflavone paste was dried for 8 hours at a vacuum degree of ...

Embodiment 2

[0040] Get 1000L soybean molasses, add water to dilute, and adjust the sugar content of the dilute molasses water to be 15%. While stirring, slowly add 1N sulfuric acid solution to adjust the pH value of the dilute molasses water to 4.2. Heat up to 80°C, keep warm for 90 minutes and then cool to room temperature. Centrifuge with a tube centrifuge, collect the supernatant for column chromatography, and rinse with 75% alcohol solution. The eluent was collected, evaporated under negative pressure, the evaporation temperature was 70°C, the vacuum degree was 0.02MPa, the alcohol was recovered, and a soybean isoflavone paste with a solid content of 28% was obtained. Add 10 times the volume of 95% alcohol to the soybean isoflavone paste, stir for 30 minutes, and let it settle. The supernatant was collected, and the alcohol was recovered under negative pressure to obtain a soybean isoflavone paste. The soy isoflavone paste was dried for 4 hours at a vacuum degree of 0.02 MPa and a ...

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PUM

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Abstract

The invention relates to a method for producing soybean isoflavone by utilizing soybean molasses. The method comprises the following step of extracting the soybean molasses through dilution, acid treatment, heat treatment, column chromatography, crystallization, drying and other processes, wherein the content of the obtained soybean isoflavone is more than 40 percent. The method has the benefits that as the soybean isoflavone is extracted by utilizing the soybean molasses as a by-product of an alcohol leaching soy protein concentrate, the added value of the soybean molasses is greatly increased; the method is suitable for industrial production.

Description

technical field [0001] The invention relates to the production of high-content soybean isoflavones, in particular to a method for producing soybean isoflavones using soybean molasses. Background technique [0002] Soy isoflavones are mainly found in various leguminous plants, and soybean is the main dietary source of soy isoflavones. Soy isoflavones have a molecular structure similar to estrogen, which can compete with estrogen in women to bind to estrogen receptors, thereby achieving a two-way regulation of estrogen levels in women. Studies have shown that soybean isoflavones have outstanding effects in improving women's menopause, osteoporosis, and cardiovascular diseases. [0003] Soybean molasses is a by-product of soybean protein concentrate produced by alcohol method, and the content of soybean isoflavones is 1% to 2%. At present, soybean molasses is mainly used as an auxiliary material for the production of feed, which is not fully utilized and has low added value. ...

Claims

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Application Information

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IPC IPC(8): C07D311/36C07D311/40
CPCC07D311/36C07D311/40
Inventor 杨爱平李香萍
Owner 荆门市德爱生物工程股份有限公司
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