[Study on quality standard of extracts from Rhizoma Zingiberis by supercritical fluid extraction].
OBJECTIVE
To establish the quality standard of extracts from Rhizoma Zingiberis by supercritical CO2 fluid extraction.


METHODS
The extracts were identified by TLC. The total phenols and the 6-gingerol were determined by dual-wavelength UV spectrophotometry and HPLC separately.


RESULTS
The recovery of total phenols was 97.7% (RSD 2.0%). The linear range of 6-gingerol is 0.20-2.0 microg, the average recovery was 97.7% (RSD 2.0%).


CONCLUSIONS
The method is convenient for a good resolution and can be used for the quality control of extracts from Rhizoma Zingiberis.
Meng
Qing
Q
Institute of Drug Research, Guangdong College of Pharmacy, Guangzhou 510224, China. mj101063@21cn.com
Feng
Yi-fan
YF
Guo
Xiao-ling
XL
Chen
Geng-fu
GF
Cai
Jian-cong
JC
D002396:Catechols; D025924:Chromatography, Supercritical Fluid / Q000379:methods*; D004365:Drugs, Chinese Herbal / Q000737:chemistry / Q000302:isolation & purification*; D005233:Fatty Alcohols / Q000032:analysis; D020939:Zingiber officinale / Q000737:chemistry*; D010636:Phenols / Q000032:analysis*; D010946:Plants, Medicinal / Q000737:chemistry*; D011786:Quality Control; D027343:Rhizome / Q000737:chemistry
D002396:Catechols; D004365:Drugs, Chinese Herbal; D005233:Fatty Alcohols; D010636:Phenols; C007845:gingerol