“…Hexanal (12,14,22,28,36) Hexyl acetate (21,28) 2-Hexenal (12,14,21,25,36) Ethyl propionate (11,22,25,28) Nonanal (21) 2-Methylpropyl propionate (14,29) Furfural (36) Butyl propionate ( 22) Acetone (7,9,12,14,16,17, 22, Hexyl propionate (28) Extraction. Commercial 150-fold Delicious apple essence (Diamond Fruit Growers, Hood River, Ore.) was used as a source of apple volatiles in this study.…”