Volatiles of avocado fruit

摘要

Volatile constituents of avocado mesocarp were isolated by concurrent steam distillation/solvent extraction in the Likens-Nickerson apparatus using pentane- ether as solvent. The extracts which resulted were concentrated in a Kuderna- Danish concentrator and analysed using gas chromatography and linked gas Chromatography-mass spectroscopy (GC-MS) employing capillary columns of Contrasting polarity. Hydrocarbons (mainly sesquiterpenes) and alkanals were The predominant constituents present. In the immediate extract of the avocado Mesocarp, β-caryophyllene (60/100) was the main sesquiterpene, followed by α- Humulene (5.9/100), caryophyllene oxide (4.8/100), α-copaene (4.5/100) and α-cubebene As the main hydrocarbons; alkanals were present, but only in low concentrations.