干大枣叶中叶绿素提取工艺研究

摘要

Objective:The objective of this study was to optimize the decoction process of chlorophyll in dried jujube leaves.Methods:Jujube leaf as raw material,the content of chlorophyll was determined by ultraviolet spectrophotometry,single factor experiment and L9 (34) orthogonal test.Results:The optimum extracting condition was:extraction 0.5 hour,extraction twice,and the ratio of 60％ ethanol volume to the leaves weight was 14.Conclusion:The extraction process is stable and feasible,and can be used for industrial production.%目的:优选干大枣叶中叶绿素的提取工艺.方法:以大枣叶为原料,采用单因素试验及L9(34)正交试验方法,通过紫外分光光度法检测出叶绿素含量.结果:优选出最佳提取工艺为采用14倍量60％乙醇提取2次,每次0.5h.结论:所得工艺稳定可行,能够指导工业化生产.