[Study on the chemical substrates of SFE extract from Rhizoma Cyperi].
OBJECTIVE
To extract the effective part of Rhizoma Cyperi and study the chemical constituents of diffrent parts.


METHODS
The extract of Rhizoma Cyperi was obtained by SFE and dealed with molecular distillation, then the effective components was enriched. The chemical compositions were separated and identified by GC/MS.


RESULTS
The content of volatile oil in the extract upgraded from 43.2% to 86.0% by molecular distillation, and the relative amount of cyperene and (+) -alpha-cyperone from 20.2% to 38.6%. Fatty acids was not found in Rhizoma Cyperi-MD1.


CONCLUSIONS
The SFE of Rhizoma Cyperi could be refined with molecular distillation. The active ingredients, such as volatile oil and alpha-cyperolone, were remained effectively. The ineffective ingredients fatty acids were removed.
Feng
Yi-Fan
YF
Guangdong College of Pharmacy, Guangzhou 510224, China. fengyifan@21cn.net
Guo
Xiao-Ling
XL
Meng
Qing
Q
Gao
Ying
Y
Li
Wei-Min
WM
D002245:Carbon Dioxide; D025924:Chromatography, Supercritical Fluid / Q000379:methods; D029785:Cyperaceae / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification; D005227:Fatty Acids / Q000032:analysis; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D006358:Hot Temperature; D007659:Ketones / Q000032:analysis*; D009822:Oils, Volatile / Q000737:chemistry* / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry; D013678:Technology, Pharmaceutical / Q000379:methods; D013696:Temperature
D004365:Drugs, Chinese Herbal; D005227:Fatty Acids; D007659:Ketones; D009822:Oils, Volatile; D002245:Carbon Dioxide