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Preparation method and purpose of chalcone flavonol derivatives of black bean extracts

A technology of chal flavonol and ear flavonol, which is applied in the field of preparation of antioxidants, can solve problems such as the preparation method and application of chal flavonol derivatives, and achieve strong antioxidant activity, simple preparation method, low cost effect

Inactive Publication Date: 2012-11-21
苏州鲜活饮品股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, there is no preparation method and application of chal flavonol derivatives of black soybean extract

Method used

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  • Preparation method and purpose of chalcone flavonol derivatives of black bean extracts
  • Preparation method and purpose of chalcone flavonol derivatives of black bean extracts

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with specific examples.

[0023] see figure 1 , the preparation method of the chal flavonol derivatives of a kind of black soybean extract of the present invention, comprises the following steps:

[0024] First, extract natural anthocyanins from black soybean seed coats, soak black soybeans in five times the amount of alcohol containing 1% hydrochloric acid for a day and night, and then filter to obtain anthocyanin extracts; repeat the extraction three times, and combine the filtrates.

[0025] Then, use acid hydrolysis to remove the glycoside group and then neutralize to obtain anthocyanin hydrolysis neutralization solution; specifically include the steps: vacuum concentrate the combined anthocyanin extract to a paste, then add double the amount of concentrated hydrochloric acid and heat to reflux Hydrolyze the glycoside group for 20 minutes; then add a small amount of water to dissolve and neutraliz...

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Abstract

The invention discloses a preparation method of chalcone flavonol derivatives of black bean extracts. The method comprises the following steps that natural anthocyanin substances are extracted from black bean seed coat; an acid hydrolysis method is used for removing glycosido groups, then, neutralization is carried out, and anthocyanin hydrolysis neutralization liquid is obtained; the anthocyanin hydrolysis neutralization liquid is repeatedly extracted with ethyl acetate; and reduced pressure distillation is carried out for removing solvents, and the chalcone flavonol derivatives with the antioxidant activity are obtained. Because of the adoption of the prepariton method and the purpose of the chalcone flavonol derivatives of black bean extracts provided by the invention, the method of obtaining the derivatives with the antioxidant activity through extracting extracts from the black bean seed coat and processing the extracts is realized, and the method has the characteristics that the preparation method is simple, the antioxidant activity is high, the cost is low, and nature and health are realized.

Description

technical field [0001] The invention relates to a preparation method and application of an antioxidant, in particular to a preparation method and application of chal flavonol derivatives of black soybean extract. Background technique [0002] At present, there are many documented and successful application examples of extracting natural antioxidants from plants. For example, Allyl Sulfide from onion, Chlorogenic acid from tea or coffee, Cha techin from green tea, Carnosic acid from rosemary, barley or rice bran Ferulic acid in oil, Sesamolin in sesame, Gossypol in cottonseed oil, Tetrahydroxy isoflavone in Indonesian fermented soybean Tempeh, etc. These natural antioxidants all have similar chemical molecular configurations of "Chalcone" or "Chalconol". These natural antioxidants are chemically similar to other well-known antioxidants, such as α-Tocopherols, Propyl Gallate, Butylated Hydroxyanisole (BHA), 2,6- Di-tert-butyl-4-methylphenol or butylated hydroxytoluene (BHT)...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23D9/06C11B5/00
Inventor 黄国晃
Owner 苏州鲜活饮品股份有限公司