Abstract:

In order to study the volatile constituents from Typhonium giganteum Engl, the essential oil of the plants was extracted by hydrodistillation and analyzed by GC-MS equipped with a elastic quartz capillary column-HP-5MS5% Phenyl methyl siloxane (30 m×0.25 mm×0.25 μm). The constituents were identified by their mass spectra. The relative percentages of the volatile constituents were calculated from the GC peak areas. Thirty-one compounds were separated and identified from the oil accounting for 91.571%. The constituents with relative contents more than 2% were determined as hexanal (21.485%), 2-heptanol (14.363%), 1-octen-3-ol (10.911%), camphor (6.136%), 2-pentylfuran (3.603%), phenanthrene (3.549%), sobutyl phthalate (3.549%), pornyl acetate (3.176%), 3,8-dimethyl-5-(1-methylethylidene)-1,2,3,4,5,6,7,8-octahydroazulene-6-one (3.002%), linalool L (2.048%). Except for hexanal and nonanal, the other 29 constituents were reported from this plant for the first time.

Key words: Typhonium giganteum Engl, hydrodistillation, volatile constituents, GC-MS