CLC number: TS201
On-line Access:
Received: 2005-03-01
Revision Accepted: 2005-06-09
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Cited: 19
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HE Guo-qing, XIONG Hao-ping, CHEN Qi-he, RUAN Hui, WANG Zhao-yue, TRAORÉ Lonseny. Optimization of conditions for supercritical fluid extraction of flavonoids from hops (Humulus lupulus L.)[J]. Journal of Zhejiang University Science B, 2005, 6(10): 999-1004.
@article{title="Optimization of conditions for supercritical fluid extraction of flavonoids from hops (Humulus lupulus L.)",
author="HE Guo-qing, XIONG Hao-ping, CHEN Qi-he, RUAN Hui, WANG Zhao-yue, TRAORÉ Lonseny",
journal="Journal of Zhejiang University Science B",
volume="6",
number="10",
pages="999-1004",
year="2005",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2005.B0999"
}
%0 Journal Article
%T Optimization of conditions for supercritical fluid extraction of flavonoids from hops (Humulus lupulus L.)
%A HE Guo-qing
%A XIONG Hao-ping
%A CHEN Qi-he
%A RUAN Hui
%A WANG Zhao-yue
%A TRAORÉ
%A Lonseny
%J Journal of Zhejiang University SCIENCE B
%V 6
%N 10
%P 999-1004
%@ 1673-1581
%D 2005
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2005.B0999
TY - JOUR
T1 - Optimization of conditions for supercritical fluid extraction of flavonoids from hops (Humulus lupulus L.)
A1 - HE Guo-qing
A1 - XIONG Hao-ping
A1 - CHEN Qi-he
A1 - RUAN Hui
A1 - WANG Zhao-yue
A1 - TRAORÉ
A1 - Lonseny
J0 - Journal of Zhejiang University Science B
VL - 6
IS - 10
SP - 999
EP - 1004
%@ 1673-1581
Y1 - 2005
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2005.B0999
Abstract: Waste hops are good sources of flavonoids. Extraction of flavonoids from waste hops (SC-CO2 extracted hops) using supercritical fluids technology was investigated. Various temperatures, pressures and concentrations of ethanol (modifier) and the ratio (w/w) of solvent to material were tested in this study. The results of single factor and orthogonal experiments showed that at 50 °C, 25 MPa, the ratio of solvent to material (50%), ethanol concentration (80%) resulted in maximum extraction yield flavonoids (7.8 mg/g). HPLC-MS analysis of the extracts indicated that flavonoids obtained were xanthohumol, the principal prenylflavonoid in hops.
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