An Investigation into the Lipid Classes of Skipjack Tuna (Katsuwonus pelamis) |
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| Authors: | ADEBISI MOGEED BALOGUN SO TALABI |
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| Affiliation: | Research reported herein was carried out at the Institute for Oceanography and Marine Research, Victoria Island, Lagos, Nigeria. Author Balogun is affiliated with the Dept. of Wildlife and Fisheries Management, Univ. of Ibadan, Ibadan, Nigeria. Author Talabi is affiliated with the Nigerian Institute for Oceanography and Marine Research, Victoria Islands, Lagos, Nigeria. |
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| Abstract: | The lipid classes of the muscle of Skipjack tuna (Katsuwonus pelamis) were investigated over a period of 10 months by thinlayer chromatography. Triglycerides, diglycerides, monoglycerides and phospholipids content varied between 48.36 ± 1.22% and 62.49 ± 3.40%; 20.04 ± 5.59 and 28.53 ± 4.50; 0.98 ± 0.20% and 4.84 ± 2.48% and 4.31 ± 0.96% and 9.26 ± 0.52%, respectively. Both triglycerides and diglycerides formed the major fractions (between 68 and 91%) of Skipjack muscle lipid. There was a good concentration of phospholipids. Free fatty acid levels were fairly low and varied between 0.62 ± 0.10% and 3.94 ± 0.31%. No levels of hydrocarbons were detected in lipid samples from May to September but fairly high levels of (14.97 ± 2.89% and 12.74 ± 2.68, respectively) were detected in November and January samples. |
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