γ-Decalactone has a pleasant, fruity, peach-like odor.
Aroma threshold values
Detection: 1 to 11 ppb
clear colourless to pale yellow liquid
Taste threshold values
Taste characteristics at 10 ppm: creamy, fatty, oily, buttery sweet, coconut, fruity and peach-like.
Reported found in peach, apricot and strawberry aroma. Also reported in butter, milk, beer, rum, red and white
wine, mango, bilberry, plums, prunes, guava, peach, strawberry fruit and cheeses.
Naturalγ-decalactone is produced biotechnologically starting from ricinoleic
acid, which is degraded by β-oxidation to 4-hydroxydecanoic acid, which
lactonizes at lower pH to yield γ-decalactone
The Journal of Organic Chemistry, 55, p. 462, 1990 DOI: 10.1021/jo00289a016Synthetic Communications, 18, p. 2241, 1988 DOI: 10.1080/00397918808082366
By heating γ-bromocapric acid in a sodium carbonate solution; by prolonged heating of 9-decen-1-oic acid with 80%
H2SO2 at 90°C
gamma-Decalactone is present in a wide
variety of foods and is an almost colorless liquid with an intensely fruity odor,reminiscent of peaches. It is used in perfumery for heavy, fruity flower odors and
in aroma compositions, particularly peach flavors.