Microwave-assisted Extraction of Shikimic Acid from Star Anise

来源 :The 6th Joint China-Japan Chemical Engineering Symposium(第六届 | 被引量 : 0次 | 上传用户:xhcbwrs
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  In this paper, microwave-assisted extraction (MAE) of shikimic acid from star anise, one of well-known Chinese herbs, was studied.The effects of some parameters on the shikimic acid yield were investigated.The yield ofshikimic acid under the optimal extraction condition (microwave power: 500 W, ethanol concentration: 40%, extraction temperature: 100℃, extraction time 50 min, solvent to material ratio: 40 ml/g, and powder size: 60 mesh) was 43.1 mg/g.Compared to traditional heat reflux extraction method, the MAE process significantly reduced extraction time, and a higher extraction yield of shikimic acid could be obtained.This suggested that MAE was a promising method for extraction of effective compounds from star anise as well as other Chinese herbs.
其他文献
自主努力、教育引导、健全制度,只有三方面积及极互动,社会公德建设方能见实效观察思考 Independent efforts, education and guidance and a sound system can only be seen
近年来,随着蟑螂抗性水平的快速发展及人们环境安全意识的不断提高,政府职能部门越来越重视化学农药的科学使用和农药残留的危害问题,人们开始关注蟑螂的无公害防治技术,而绿
  Fabrication of micrometer-size hydrogels is an essential technique for constructing functional biomicroarray, biosensors, and cell cultivation platforms.Her
会议
民乐县位于祁连山北麓,河西走廊中段,是一个自然条件较差,农村经济比较落后的农业县。1999年末,人行甘肃民乐县支行与县农村信用联社围绕“如何规范管理农户贷款,解决农户贷款担
  At the initial work, we have succeeded in resolving the problem of how to prepare the optimized Solid-in-Oil (S/O) nano-suspension-type TDDS containing spar
会议
会议
  In allusion to the molecular sieve of SAPO-11 with unidimensional 10-rings pore channel structure, n-octylbenzene was selected as probe molecule for its spe
会议
Varian公司VA-963A型速调管,综合了谐振腔体设计的最新技术,并附有简单的数字指示器,从而使一个管子同时可作宽带或狭带工作。利用数字指示器,可以在现场快速地把每个谐振腔
《隧道围岩稳定系统分析》一书已由中国铁道出版社于1990年10月出版。该书首次实现用岩石力学方法对围岩的稳定性进行系统分析,改变了大多数工程只能依赖经验类比的现状。应
测试和分析了两座混凝土桥梁的动力响应,使用冲击荷载激振。第一座桥梁系在跨中加载,荷载分四级,直到桥梁因超载而破坏。每级荷载在施加后均作全套模态分析。第二座桥梁在梁