GC-MS Analysis of the Essential Oil from Ultrafine-Powder of Ganoderma sinense by Supercritical CO₂ Fluid Extraction

Objective:Further to analysis chemical components in the essential oil(EO) of Ganoderma sinense. Methods:EO was extracted using Supercritical CO2 fluid extraction(SFE-CO2) technique from the ultrafine-powder of Ganoderma sinense, and detected by Gas chromatography-mass spectrometry (GC-MS). Results: 46 compounds were checked out from the EO extract(with 1.47% of extract rate, w/w), and 26 compounds(matching degree >83%) were identified representing 79. 2% of the total EO, including n-Hexadecanoic acid, (E)-9-Octadecenoic acid methyl ester, (E)-9- Octadecenoic acid and (E,E)-2,4- Decadienal, 9-Methyl-Z-10-tetradecen-1-ol acetate, 1,8,8-trimethyl-2-(3-oxocyclo- pentenyl)-Tricyclo3.2.1.0(2,4)octane-3,3-dicarbonitrile, (Z)-9-Octadecenoic acid-2-hydroxy-1- (hydroxymethyl) ethyl ester and E-11-Hexadecen-1-ol and so on. Collusion: The results indicated that chemical components and their relative contents of the EO extracted by SFE-CO2 were different from that by steam distillation(SD) after ether refluxing.