用离子交换法分离豆饼中异黄酮的研究  

Study on the Separation of Isoflavone in Soy Bean Cake by Anion Exchange Method

作　　者：肖国珍[1] 罗宗铭[2] 

机构地区：[1]广东工业大学后勤产业集团,广东广州51009 [2]广东工业大学轻工化工学院,广东广州510090

出　　处：《广东化工》2005年第2期10-11,共2页Guangdong Chemical Industry

摘　　要：在pH=10.5的碱性介质中,大豆异黄酮被强碱阴离子交换树脂交换吸附,用2.5 × 10-2mol/LHCl溶液定量洗脱.用80%乙醇溶液提取豆饼中大豆异黄酮的粗提物,经离子交换分离,可使产品中大豆异黄酮含量提高2.43～10.57倍,回收率达96%.In alkaline medium at pH10.5, the soy isoflavone was exchanged on the anion exchange resin of strong base and was eluated by 2.5×10 -2 mol/L HCl solution quantitatively. The soy isoflavone in soy bean cake was extracted by 80% alcohol solution to obtain the semifinished product and was purified by ion exchange separation method. The contents of soy isoflavone in separation products raise 2.43～10.57 times and recovery of soy islflavone is 96%.

关 键 词：离子交换法 豆饼 异黄酮 分离方法 回收率 乙醇 

分 类 号：TQ224.2[化学工程—有机化工] TS201.2[轻工技术与工程—食品科学]