大豆乳清水一级浮渣粉中大豆异黄酮的提取工艺研究

Jun LIU,Xuqiang LU,Yuqiang SHI,Min LI,Chengwen YIN,Daicheng LIU

China Oils and Fats（2020）

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Abstract

建立了一种针对大豆乳清水一级浮渣粉(SP)中大豆异黄酮的提取、分离和纯化方法.结果表明:以60％乙醇为提取溶剂,在料液比1:5、提取温度60～70℃下采用胶体磨提取2次,每次0.75 h,每100 g SP可提取干物质20 g,大豆异黄酮含量为2.08％.该20 g提取物加20 g Ca3(PO4)2、8 g Ca(HCO3)2和400 mL 95％乙醇沸腾回流1 h,过滤浓缩后可得3.05 g膏状物,大豆异黄酮含量为13.6％,除杂分离效果好.用大孔树脂ADS-21对膏状物吸附洗脱,浓缩得大豆异黄酮产品,含量为83.5％,为洗脱前膏状物的6.14倍.

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