| Separation of major catechins from green tea by ultrahigh pressure extraction. | |
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MedLine Citation:
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PMID: 19874878 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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This study presents a novel extraction technique, ultrahigh pressure extraction, to obtain major catechins from green tea leaves. The effects of various high pressure level (100, 200, 300, 400, 500, 600 MPa) on the extract are examined. HPLC chromatographic analyses determine the concentration of four major catechins and caffeine. The extraction yields of active ingredients with ultrahigh pressure extraction (400 MPa pressure) for only 15 min were given the same as those of organic solvent extraction for 2h. These excellent results for the ultrahigh pressure extraction are promising for the future separation of active ingredients from traditional Chinese herbal medicine. |
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Authors:
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Xi Jun; Zhao Shuo; Lu Bingbing; Zhang Rui; Li Ye; Shen Deji; Zhou Guofeng |
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Publication Detail:
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Type: Journal Article Date: 2009-10-27 |
Journal Detail:
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Title: International journal of pharmaceutics Volume: 386 ISSN: 1873-3476 ISO Abbreviation: Int J Pharm Publication Date: 2010 Feb |
Date Detail:
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Created Date: 2010-02-01 Completed Date: 2010-04-08 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7804127 Medline TA: Int J Pharm Country: Netherlands |
Other Details:
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Languages: eng Pagination: 229-31 Citation Subset: IM |
Copyright Information:
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Copyright 2009 Elsevier B.V. All rights reserved. |
Affiliation:
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School of Chemical Engineering, Sichuan University, Chengdu 610065, China. xijun@scu.edu.cn |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Caffeine
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isolation & purification Camellia sinensis / chemistry* Catechin / analogs & derivatives, isolation & purification* Chemical Fractionation / methods* Chromatography, High Pressure Liquid Plant Leaves Pressure Solvents / chemistry Time Factors |
| Chemical | |
Reg. No./Substance:
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0/Solvents; 154-23-4/Catechin; 1617-55-6/gallocatechol; 58-08-2/Caffeine; 863-03-6/epicatechin gallate; 989-51-5/epigallocatechin gallate |
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