[Identification of chemical compositions in ether extracts of Ligustrum lucidum by GC-MS and chemometrics].
OBJECTIVE
To identify and quantify the compound compositions of ether extracts of Ligustrum lucidum.


METHODS
After extracted 4 hour by Soxhlet extraction with ether, the extractive were analyzed by gas chromatography and mass spectrometry (GC-MS). Furthermore, heuristic evolving latent projection (HELP) was used to resolve the overlapping peaks to obtain the pure concentration profiles and mass spectra. Subsequently, mass spectral similarity search combining with the retention index was employed for the identification of each component.


RESULTS
Totally, 75 compounds were identified, accounting for 84.3% of that in the whole ether extracts of L. lucidum.


CONCLUSIONS
The main compounds of L. lucidum are oleic acid, lupeol and (Z,Z) 9,12-octadecadienoic acid, whose relative content were 9.805%, 8.848%, 8.357%, respectively.
Research Center of Modernization of Chinese Herbal Medicines, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China.
Xiangli
X
Wang
Liangxiao
L
Zhang
Yizeng
Y
Liang
Hui
H
Dai
D004986:Ether / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D031659:Ligustrum / Q000737:chemistry*; D010936:Plant Extracts / Q000032:analysis* / Q000302:isolation & purification
D010936:Plant Extracts; D004986:Ether