Optimization of Extraction Process for Longan(Dimocarpus longan Lour.)Leaves Using Multi-indicator Comprehensive Evaluation Method  

作　　者：Jie LIANG Jinyu WEI Dongfang HUANG Xiaosi CHEN Jing LIN Guangqiang HUANG Hua ZHU 

机构地区：[1]Guangxi University of Chinese Medicine, Nanning 530200, China [2]Guangxi Key Laboratory of Zhuang and Yao Ethnic Medicine, Nanning 530200, China [3]Guangxi Zhuang Yao Medicine Center of Engineering and Technology, Nanning 530200, China

出　　处：《Medicinal Plant》2020年第2期65-68,共4页药用植物：英文版

基　　金：National Natural Science Foundation of China(81560691);Special Fund Project for Innovation Driven Development of Guangxi(Gui Ke AA17202046);Open Program for Construction of TCM Pharmacy Doctor Station in Guangxi University of Chinese Medicine(201410-06);The First-Class Subject of Traditional Chinese Medicine(Ethnic Pharmacy)in Guangxi(Gui Jiao Ke Yan[2018]No.12);Program of Collaborative Innovation Center of Zhuang and Yao Medicine(Gui Jiao Ke Yan[2013]No.20);Program of Key Laboratory of Zhuang and Yao Medicine[Gui Ke Ji Zi[2014]No.32];The Eighth Batch of Special Experts Project of Guangxi Zhuang Autonomous Region(Study on Quality Standard of Zhuang&Yao Medicine,[2019]No.13);High-level Talent Team Cultivation Program of"Qihuang Project"of Guangxi University of Chinese Medicine(2018002);High Level Innovation Team and Excellent Scholar Program of Guangxi Universities(Gui Jiao Shi Fan[2019]No.52);Guangxi One Thousand Young and Middle-aged College and University Backbone Teachers Cultivation Program(Gui Jiao Ren[2019]No.5).

摘　　要：[Objectives]This study aimed to optimize the extraction process of longan(Dimocarpus longan Lour.)leaves by multi-indicator comprehensive evaluation method.[Methods]The contents of gallic acid ethyl ester,astragalin,quercetin,luteolin and kaempferol in longan leaves were determined simultaneously by HPLC.Using the multi-indicator comprehensive evaluation method,the methanol concentration,solid to liquid ratio and extraction time for extraction of longan leaves were optimized by orthogonal test.[Results]The optimal extraction process of longan leaves are as follows:methanol concentration of 100%,solid to liquid ratio of 1∶5,and extraction time of 50 min.[Conclusions]The optimized process is simple and feasible,and it can be used to determine the contents of different ingredients in longan leaves.

关 键 词：LONGAN LEAF Dimocarpus LONGAN Lour. Orthogonal test Multi-indicator weighed comprehensive evaluation method Extraction PROCESS 

分 类 号：R28[医药卫生—中药学]