Description
y-Octalactone has a strong, fruity odor reminiscent of coconut with
a very sweet taste. This substance may be prepared synthetically
from epoxy-1,2-hexane and sodio-malonic ester; after saponification
the oxyacid is extracted with ether and is lactonized.
Chemical Properties
CLEAR COLOURLESS LIQUID
Chemical Properties
gamma-Octanoic lactone occurs as an
aroma constituent in many processed and unprocessed foods. It is a pale yellow
liquid with a fruity/coconut-like odor and is used both in aroma compositions and
in heavy blossom perfumes.
Chemical Properties
γ-Octalactone has a fruity odor reminiscent of coconut and a very sweet taste.
Occurrence
Reported found in apricot, peach, blue cheese, butter, cooked chicken and cooked pork, licorice, milk, raspberry,
roasted barley, and roasted filbert.
Definition
ChEBI: Gamma-octalactone is a gamma-lactone that is oxolan-2-one substituted by a butyl group at position 5. It is a volatile compound found in peaches, mangoes, beef and ham. It has a role as a fungal metabolite, a mouse metabolite, a mammalian metabolite, an insect attractant, a plant metabolite and a flavouring agent. It is a gamma-lactone, a tetrahydrofuranone and a volatile organic compound.
Aroma threshold values
Detection: 7 ppb; aroma characteristics at 1.0%: sweet, fatty, creamy, coconut, lactonic and coumarinic.
Taste threshold values
Taste characteristics at 1 to 10 ppm: coconut, fatty, creamy, coumarinic, with a strong creamy and waxy
mouthfeel.
General Description
γ--Octalactone is one of the flavor constituents of peaches, oranges and sweet fortified wines.
Flammability and Explosibility
Notclassified
Synthesis
Prepared synthetically from epoxy-1,2-hexane and sodio-malonic ester; after saponification, the oxyacid is extracted with
ether and is lactonized.
