Document Detail


Separation of major catechins from green tea by ultrahigh pressure extraction.
MedLine Citation:
PMID:  19874878     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
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.
Authors:
Xi Jun; Zhao Shuo; Lu Bingbing; Zhang Rui; Li Ye; Shen Deji; Zhou Guofeng
Related Documents :
7520888 - Histochemical and morphological studies on trichinella spiralis larvae treated with hig...
11452118 - Superconductivity in boron.
11872008 - An investigation of blood damage induced by static pressure during shear-rate conditions.
8785338 - Chiral discrimination in a monolayer of a triple-chain phosphatidylcholine.
12359978 - Distribution of 24-h ambulatory blood pressure in children: normalized reference values...
8181318 - Right ventricular function during weaning from respirator after coronary artery bypass ...
Publication Detail:
Type:  Journal Article     Date:  2009-10-27
Journal Detail:
Title:  International journal of pharmaceutics     Volume:  386     ISSN:  1873-3476     ISO Abbreviation:  Int J Pharm     Publication Date:  2010 Feb 
Date Detail:
Created Date:  2010-02-01     Completed Date:  2010-04-08     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7804127     Medline TA:  Int J Pharm     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  229-31     Citation Subset:  IM    
Copyright Information:
Copyright 2009 Elsevier B.V. All rights reserved.
Affiliation:
School of Chemical Engineering, Sichuan University, Chengdu 610065, China. xijun@scu.edu.cn
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Caffeine / 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:
0/Solvents; 154-23-4/Catechin; 1617-55-6/gallocatechol; 58-08-2/Caffeine; 863-03-6/epicatechin gallate; 989-51-5/epigallocatechin gallate

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Transcutaneous Delivery of a Nanoencapsulated Antigen: Induction of Immune Responses.
Next Document:  PEI-Alginate nanocomposites: Efficient non-viral vectors for nucleic acids.