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个人信息Personal Information
副教授
博士生导师
硕士生导师
性别：男
毕业院校：中国协和医科大学
学位：博士
所在单位：生物工程学院
学科：生物化工. 微生物学. 微生物与生化药学
办公地点：辽宁省大连市高新园区凌工路2号大连理工大学西部校区生物工程学院309室
联系方式：辽宁省大连市高新园区凌工路2号大连理工大学生物工程学院
电子邮箱：yshdong@dlut.edu.cn
Microwave-assisted aqueous two-phase extraction of piceid, resveratrol and emodin from Polygonum cuspidatum by ethanol/ammonium sulphate systems
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论文类型：期刊论文
发表时间：2008-12-01
发表刊物：BIOTECHNOLOGY LETTERS
收录刊物：SCIE、EI、PubMed、Scopus
卷号：30
期号：12
页面范围：2079-2084
ISSN号：0141-5492
关键字：Emodin; Ethanol/ammonium sulphate; Microwave-assisted aqueous two-phase extraction; Piceid; Polygonum cuspidatum; Resveratrol
摘要：Microwave-assisted, aqueous two-phase extraction was investigated to obtain effective constituents, including piceid, resveratrol and emodin in Polygonum cuspidatum. An aqueous two-phase system consisting of 25% (w/w) ethanol 21% (w/w) (NH(4))(2)SO(4) gave equal yields of piceid, and 1.1- and 1.9-times higher yields of resveratrol and emodin, respectively, than that achieved by microwave-assisted extraction and heat reflux extraction. Three-separate operations, extraction, clarification and concentration, are hereby integrated into a single step to get higher yields at lower cost. This is therefore a potentially useful method for the extraction and purification of target products.