The Pungency Components of Ginger

The volatile components of three ginger oleoresins by ethanol extraction were analyzed by GC and GC/MS.The content change of the pungency components was three ginger oleoresins was discussed.Meanwhile,four gingerol homologous compounds neter reported were identified as 4-(3-oxobutyl)-2-methoxyanisole,4-(3-oxo-4-decenyl)-2-methoxyanisole,4-(5-hydroxy-3-oxotridecyl)-2-methoxyphenol and 4-(3-oxopentadecyl)-2-methoxyphenol.The main components of fresh ginger oleoresin is similar in both methods of 95% ethanol extraction and the supercritical CO 2 extraction,but the pungency content of the oleoresin of 95% ethanol extraction is higher than that of the supercritical CO 2 extraction.