从黄芩中微波辅助提取黄芩苷的研究  

STUDY ON MICROWAVE-ASSISTED EXTRACTION OF BAICALIN FROM SCUTELLARIA BAICALENSIS

作　　者：程存归[1] 金文英[1] 吴兰菊[1] 

机构地区：[1]浙江师范大学化学与生命科学学院,浙江金华321004

出　　处：《林产化学与工业》2005年第1期81-83,共3页Chemistry and Industry of Forest Products

摘　　要：本研究运用新型分离方法微波辅助提取法(MAE)来提取黄芩中的黄芩苷。分别选用水、乙醇、氯仿、正己烷、石油醚作为萃取介质,在间歇微波辅助提取装置中,对 10g黄芩原料进行微波辅助提取实验,得出微波辅助提取的最佳工艺为:黄芩原材料粉碎粒度 200目,溶剂为 60%乙醇溶液,微波辐射 8min。同时还对微波辐射时间、溶剂、物料粒度等条件对黄芩苷得率的影响进行了探讨。结果表明微波辅助提取黄芩中的黄芩苷,具有质量稳定、速度快、萃取效率高等特点。A new method,namely microwave-assisted extraction(MAE),is used to extract baicalin from S.baicalensis.Water,ethanol,chloroform,n-hexane,petroleum were used separately to extract baicalin in a MAE apparatus.The result showed the optimum condition as follows:60% alcohol as sovent,granularity of raw material 200 mesh,duration of microwave irradiation 8 min.Effects of different solvents,different grain sizes of S.baicalensis Georgi and duration of microwave irradiation on yield of baicalin were discussed.Results showed that microwave-assisted extraction is (efficient),simple and rapid for extraction of baicalin from S.baicalensis.

关 键 词：微波辅助提取 黄芩 黄芩苷 

分 类 号：TQ91[化学工程] R284.2[医药卫生—中药学]