Muscle lipids and fatty acid profiles of three edible fish from the Mauritanian coast: Epinephelus aeneus, Cephalopholis taeniops and Serranus scriba

摘要

Muscle lipids and fatty acids (FA) of three largely consumed seawater species of Serranidae (Epinephelus aeneus, Cephalopholis taeniops, and Serranus scriba) from the Mauritanian coast, were determined through 1 year. The lipid contents were relatively poor, ranging from 0.8% to 2.3% showing a significant seasonal dependency. Amongst the 35 FA identified, 35-51% were saturated FA (SFA), 21-33% monounsaturated FA (MUFA), and 18-34% polyunsaturated FA (PUFA). Palmitic acid was found to be the main SFA, and was seasonal dependent, with a mean value of 30.5% for E. aeneus, 27.9% for C. taeniops, and 20.9% for S. scriba. Amongst MUFA, oleic acid, with 11-16%, was the main acid in all three species. The n6 PUFA level was low, in particular for C. taeniops (1.3-1.6%), and a little higher for S. scriba (3.6-4.2%). The three species were characterised by high amounts of n3 PUFA. Amongst them, docosa-4,7,10,13,16,19-hexae-noic acid (DHA, 22:6n3) was the highest with 5-9% for C. taeniops, 13-17% for S. scriba, and 10-16% for E. aeneus. Eicosa-5,8,ll,14,17-pentaenoic acid (EPA, 20:5n3), was the second highest n3 PUFA, with 4-13%.