Analysis of Volatile Components from Leaf Twigs in Biota Orientalis with Different Extraction Methods by Gas Chromatography-Mass Spectrometry

Volatile oils were extracted from leaf twigs in Biota orientalis by cellulase extraction(CE) method,simultaneous distillation extraction(SDE) method and stream distillation-extraction method(DSE),the components were identified by gas chromatography-mass spectrometry(GC/MS).The results indicated that the compounds from the volatile oils extracted by the three methods were different.Thirty-two chemical components were identified by CE,the major component of them was cedrene accounting for 41.25% of total volatile components;twenty-nine chemical components were identified by SDE,the major component was cedrol accounting for 39.06%;thirty-two chemical components were identified by DSE,the major component was cedrol accounting for 31.43%,respectively.