A kind of method for extracting soybean isoflavones from soymilk water primary scum

Abstract

The disclosure provides a method for extracting soybean isoflavones from the primary scum of soybean milk water. The method is as follows: the primary scum of soybean milk water is extracted with absolute ethanol, degreased with n-hexane, and purified with ethyl acetate to obtain soybean isoflavones ; or, the first-class scum of soybean milk is extracted with ethanol, rectified, adsorbed and eluted by macroporous resin, and dried to obtain soybean isoflavone crystals. The present disclosure can extract soybean isoflavones from the primary scum of soybean milk water.

Description

technical field [0001] The disclosure relates to a method for extracting soybean isoflavones from primary scum of soybean milk water. Background technique [0002] The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] Soybean belongs to Dicotyledoneae, Fabaceae, Papilionaceae, and is very rich in protein, about 40% in dry beans, which is rich in 8 kinds of amino acids that cannot be synthesized by the human body. Many studies in recent years have shown that soybean isoflavones have a variety of physiological functions, so the demand for soybean isoflavones is gradually increasing. Soy isoflavones are usually solid, with a melting point above 100°C. They are stable at room temperature. They are yellowish-white, powdery, non-toxic, and have a slightly bitter taste. They have a certain Solubility, insoluble in cold water, easily soluble in hot water, insoluble in petroleum ether, n-...

AI Technical Summary

Problems solved by technology

It is not easy to extract high-purity soybean isoflavones