Studies on fish lipids : II.Fatty acid composition of lipids of oil sardine [Sardinella longiceps]
Studies on fish lipids : II.Fatty acid composition of lipids of oil sardine [Sardinella longiceps]
Date
1966
Authors
Gopakumar, K.
Nair, M.R.
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India), Cochin
Abstract
Gas-liquid chromatography has been employed for the qualitative
and quantitative analysis of the component fatty acids in lipids
of oil sardine (Sardinella longiceps) . Phospholipids and triglycerides
of the lipids were previously separated by column chromatography
before they were converted into the methyl esters of
the fatty acids . The predominant acids present in the depot fat of
the fish have been found to beC 14 :0 = 8.13%, Cl , ;, = 27 .9%,
C1s :o = 3 .8%, C18 . 1 = 15.4%. C20 :5 = 10.6% and C21 :1 =8.8% .
Apart from the above acids the distribution of minor acids
belonging to C 1 s, C20 and C22 groups have also been worked
out . The separated phospholipid fraction contained more than 70%
polyunsaturated acids of which the important constituents were
docosahexaenoic (C 22 : 6 =28%) and eicosapentaenoic (C21,5 =
10.6%). A marked reduction was found in the amounts of
polyunsaturated acids in triglycerides, their total amount registering
about 20 percent. This fraction recorded about 48 percent of C 1 ,
acids of which palmitic and palmitoleic acids amounted to 25 .8
per cent and 19 .1 per cent respectively . Occurrence of odd
numbered fatty acids C 15 and C17 has also been noted in the
phospholipid and composite samples of the fish .
Description
Keywords
Fish lipis, Fatty acids, oil sardine, metabolic fatty acid
Citation
Fishery Technology 1966: 3(1), 21-25