Influence of habitat on the fatty acid composition of Tilapia [Tilapia mossambica]
Influence of habitat on the fatty acid composition of Tilapia [Tilapia mossambica]
Date
1985
Authors
Nair, R.K.G.
Gopakumar, K.
Journal Title
Journal ISSN
Volume Title
Publisher
Scoiety of Fisheries Technologists (India)
Abstract
Lipids were extracted from the body and viscera of tilapia of the same age group from freshwater and brackishwater natural habitats separately and the fatty acid composition was determined by gasliquid chromatography. Significant differences were observed in the fatty acid composition of tilipia from brackishwater and freshwater habitats. The differences were more pronounced in body lipids than in visceral lipds. There were clear differences in the individual fatty acids present and also in their content of saturated monoenoic and polyenoic fatty acids. 22:6w3 acids was the major polyunsaturated fatty acid in the body fat of tilapia of brackishwater origin and linoleic acid (18:2w6) was the major acid in the body fat freshwater tilapia. In the freshwater tilapia body fat, 20:4w6>20:5w3 and in backishwater fish tilapia body fat 20:5w3>20:4w6. It is seen that the fatty acid composition of tilapia from brackishwater was similar to that of a true marine fish.
Description
Keywords
fatty acid composition, habitat, tilapia mossambica
Citation
Harvest and Post-Harvest Technology of Fish. proceedings of the Symposium on Harvest and Post-Harvest Technology of fish, during 24-27 November, 1982 at Cochin. ed by. Ravindran,K. et al, 467-469