Preparation method of glycitein purified product

Abstract

The invention discloses a preparation method of a glycitein purified product. The method comprises the steps of soybean milk is subjected to standing settling, alkali adding treatment and ethyl acetate selectivity extraction; during alkali adding treatment, the added alkali is NaOH; the soybean milk is whey discharged in the soybean protein producing process through the alkaline extraction and acid settling technology. Degreased bean pulp is subjected to alkaline extraction so that soybean fiber and other protein can be separated, the protein and soybean isoflavones can be separated, the protein can be subjected to acid settling to be separated from isoflavones in the solution, alkali extraction and acid settling discharge solutions are mixed to obtain soybean milk with the pH close to 5-6.5, and the soybean milk contains a large amount of glycitein, and is the high-quality material for preparing glycitein.

Description

technical field

[0001] The invention specifically relates to a method for preparing a pure soybean yellowin. Background technique

[0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art.

[0003] Glyzein, its alias: 4',7-dihydroxy-6-methoxy isoflavone, chemical formula is C 16 h 12 o 5 , together with daidzin, daidzin, genistein, genistin and daidzein are called soy isoflavones.

[0004] The pharmacological effects of glycitein are: 1) It has estrogen and anti-estrogen properties; 2) It has antioxidant effect; 3) It can inhibit the activity of protein tyrosine kinase (PTK); 4) It can inhibit the topoisomerase Ⅱ activity; 5) It has the effects of inducing programmed cell death, improving the efficacy of ant...

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