【摘要】 目的从永川豆豉中提取大豆异黄酮,并对其有效成分进行定性、定量分析。方法市售永川豆豉干燥粉碎过筛后用石油醚脱脂,分别采用醇提法、大孔树脂法、超声提取等方法进行大豆异黄酮的提取,用薄层色谱法、化学法进行定性检验,并用紫外进行定量分析。结果三种方法均可提取出大豆异黄酮;大豆黄素在250 nm处有最大吸收,含量约为0.46%;染料木素在258 nm处有最大吸收,含量约为0.41%。结论运用超声技术从豆豉中提取大豆异黄酮简便、快速并节约溶剂。更多还原

【Abstract】 ObjectiveTo study a method for extracting soybean isoflavones in lobster Sauce,and measure the product.MethodsDry and shatter the Lobster Sauce,degrease it by multialkyl,extract isoflavones by alcohol,resin,hypervelocity.Contents of the isoflavones(Genistein and Daidzein)was measured by TLC and UV.ResultsAll the methods can get isoflavones,the curves showed their maximum absorbtion in 258 nm and 250 nm.ConclusionHypervelocity extraction method is simple,sensitive and rapid.Lobster Sauce have Daidzein of 0.46 percent,Genistein of 0.41 percent.更多还原