无机絮凝剂纯化杜仲叶水提液条件优化研究  

The Optimum Condition in the Purification of Water Extract of Eucommia ulmoides Leaves with Inorganic Flocculant

作　　者：何德飞[1] 苏印泉[1] 

机构地区：[1]西北农林科技大学林学院,陕西杨陵712100

出　　处：《西北林学院学报》2014年第2期202-206,共5页Journal of Northwest Forestry University

基　　金：国家林业公益性行业科研专项(K313021208)

摘　　要：研究无机絮凝剂纯化杜仲叶水提液的优化工艺条件，以总黄酮和桃叶珊瑚甙的含量和质量为检测指标，通过对比3种絮凝剂：七水合硫酸亚铁（FeS04·7H2O）、聚合硫酸铁（SPFS）、聚合氯化铝铁（PAFC）的絮凝效果，采用单因素试验方法确定最佳纯化条件，以期为杜仲叶有效成分的工业化利用提供理论参考。结果表明，在pH8-9条件下，用0．20％溶液质量分数的七水合硫酸亚铁处理初次浸提液，絮凝效果最好。Water extract of Eucommia ulmoides leaves were purified with three different inorganic floccula- nts, including ferrous sulfate （FeSO4 · 7H2O）, polymeric ferric sulfate, and polyaluminum ferric chlo- ride. The active constituents, such asflavonoids and aucubin were used as criteria to examine the results of purification. Satisfactory flocculation results were achieved by using 0. 2% FeSO4 · 7H2O at pHS-9 to treat the first time extract.

关 键 词：杜仲叶 总黄酮 桃叶珊瑚甙 七水合硫酸亚铁 聚合硫酸铁 聚合氯化铝铁 

分 类 号：S718.43[农业科学—林学]