Determination of Volatile Constituents of Bark-agarwood in Hainan,China

Key words: 
• bark-agarwood /
• volatile constituents /
• GC-MS

Abstract: Three bark-agarwood samples were collected from Lingao,Qionghai and Wenchang,Hainan Province to determine their characteristics of volatile constituents. The volatile constituents and relative contents of three bark-agarwood samples were analyzed by GC-MS. From the samples 42 chromatographic peaks were detected,of which 12 peaks were shared by the three samples. The ether extract of bark-agarwood in Wenchang city yielded higher relative content of sesquiterpenes than those in the other two locations,while the major constituents of ether extracts from the bark-agarwood samples in Lingao and Qionghai counties were 2-（2-phenylethyl） chromones,and the sum of the relative content of 2-（2-phenylethyl） chromone and 2-[2-（4-methoxylphenylethyl） ]chromone fell in the range of ether extract of agarwood Borneo kynam.