[Analysis of volatile and non-volatile compositions in ginger oleoresin by gas chromatography-mass spectrometry].
Ginger oleoresin was extracted from Zingiber officinale Rose. var. Laiwudajiang by the technique of supercritical fluid extraction. Gas chromatography and mass spectrometry technique were employed to analyze the ginger oleoresin. This analysis resulted in the detection of 3 hitherto unknown natural compounds, 24 compounds previously reported as pungent compounds and 50 volatile compounds from ginger. The volatile compounds were mainly alpha-zingiberene (22.29%), beta-sesquiphellandrene (8.58%), alpha-farnesene (3.93%), beta-bisabolene (3.87%), alpha-curcumene (2.63%), which were mostly consisted of sesquiterpene hydrocarbons. The pungent compounds of ginger were mainly 6-gingerol (9.38%), 6-shogaol (7.59%), zingerone (9.24%) produced by the thermal degradation of gingerols or shogaols. The mass spectral fragmentation patterns for the three new compounds (6-isogingerol, (Z)-10-isoshogaol, (E)-10-isoshogaol) are discussed and interpreted.
Zhan
Kunyou
K
State Key Laboratory of Crop Biology, College of Horticulture Science and Engineering, Shandong Agricultural University, Tai'an 271018, China. superus@sdau.edu.cn
Wang
Chao
C
Xu
Kun
K
Yin
Hongzong
H
D025924:Chromatography, Supercritical Fluid; D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods*; D020939:Zingiber officinale / Q000737:chemistry*; D009930:Organic Chemicals / Q000032:analysis* / Q000737:chemistry* / Q000302:isolation & purification; D010936:Plant Extracts / Q000737:chemistry*; D014835:Volatilization
D009930:Organic Chemicals; D010936:Plant Extracts; C018620:oleoresins