Abstract:

The volatile compounds in early and late harvested ginger (Zingiber officinale Roscoe) were analyzed by
headspace-solid phase micro-extraction (HS-SPME) combined with GC-MS using decane as an internal standard. A total of
89 volatile compounds were identified in ginger. There were 63 volatiles compounds in early harvested ginger (in August)
including 37 hydrocarbons, 15 alcohols, 6 esters, 3 aldehydes and 2 ketones, whereas there were 68 volatiles compounds in
late harvested ginger (in September of the same year) including 45 hydrocarbons, 14 alcohols, 3 esters, 3 aldehydes and 3
ketones. The major volatile compounds in early harvested ginger included zingiberene, neryl acetate, beta-cedrene, alphafarnesene,
trans-citral and beta-bisabolene, while those identified in late harvested ginger included zingiberene, alphacurcumene,
beta-cedrene, alpha-farnesene, trans-citral and beta-bisabolene.

Key words: ginger (zingiber officinale Roscoe), volatile compounds, headspace solid phase micro-extraction (HS-SPME), gas chromatography-mass spectrometry (GC-MS)