Chemical Properties
Propyl isobutyrate has a pineapple-like odor and a corresponding sweet flavor.
Occurrence
Reported found in several natural products including apple, olive, spineless monkey orange, Gruyere de Comte
cheese, honey, hop oil, olives and Roman chamomile oil.
Uses
Propyl Isobutyrate finds some use in flavor compositions for imitation Apple, Banana, Gooseberry, Apricot, Mirabelle, Pineapple, Plum, Strawberry, etc. and will constitute about 5 to 25 ppm of the finished product.
Definition
ChEBI: Propyl 2-methylpropanoate is a carboxylic ester.
Preparation
From propyl alcohol and isobutyric acid in benzene solution in the presence of concentrated H2SO4.
Aroma threshold values
Detection: 0.086 to 0.43 ppb
Taste threshold values
Taste characteristics at 5 to 15 ppm: sweet, fruity, with ripe, tropical, tutti-fruiti and citrus melon nuances.
