Volatile Components of Malaysian Annona Fruits

The volatile composition of the fruits of three Annona species from Malaysia was investigated by capillary GC and GC-MS following isolation by simultaneous steam distillation-extraction. A total of fifty-one components were identified in the soursop volatiles, including eleven which have been previously reported in this fruit. Thirty-four volatile components were identified in the sweetsop and fifty-two in the bullock's heart. Most aroma components in the soursop were esters (57.2%), while terpenoid constituents predominated in the sweetsop and bullock's heart (88.5 % and 98.3 % respectively).