Fatty Acid Profiles of Different Shrimp Species: Effects of Depth of Catching |
| |
| Authors: | Pinar Yerlikaya Osman Kadir Topuz Hanife Aydan Buyukbenli Nalan Gokoglu |
| |
| Institution: | 1. Fish Processing Department , Fisheries Faculty, Akdeniz University , Antalya , Turkey pyerlikaya@akdeniz.edu.tr;3. Fish Processing Department , Fisheries Faculty, Akdeniz University , Antalya , Turkey;4. Food Engineering Department , Engineering Faculty, Akdeniz University , Antalya , Turkey |
| |
| Abstract: | The aim of this study was to investigate fatty acid profiles of different shrimp species caught from deep water and shallow water. The shrimp species investigated in the study were Aristeus antennatus, Aristeomorpha foliacea, Plesionica martia, Parapenaeus longirostris, and Plesionica edwardsi from deep water; and Metapenaeus monoceros, Penaeus semisulcatus, Penaeus kerathurus, and Penaeus japonicus from shallow water. Fatty acid composition of shrimps varied. The main fatty acids were C18:1n9, C16:0, C25:6n3, C22:5n3, and C18:0. Saturated, monounsaturated, and polyunsaturated fatty acid (PUFA) contents of P. longirostris, P. edwardsi, and M. monoceros were markedly different, respectively. The ratio of n6/n3 of the edible tissue of M. monoceros was found to be 0.795, whereas this value was 0.152 in A. foliacea. Among the species studied, the highest docosahexaenoic acid + eicosapentaenoic acid value was found for P. kerathurus. The levels of PUFAs of shallow water shrimps (ranging from 33.44 to 42.77%) were found to be higher than those of deep water shrimps (ranging from 29.68 to 33.95%). Marine animals in the upper water layers gain nutrition through phytoplankton which provides n-3 PUFA depending on solar energy. Shallow water shrimp species provide a satisfying amount of PUFA. |
| |
| Keywords: | shrimp fatty acids PUFA trawl net |
|
|
