Proximate composition, fatty acids, cholesterol, minerals in frozen red porgy

Abstract

The proximate composition of frozen red porgy (Pagrus pagrus) was determined. The moisture, ash, protein and total lipids (45.5 ± 1.4% PL of which 90.4 ± 2.0% PhL) were found to be 71.7 ± 1.0%, 1.73 ± 0.12%, 21.5 ± 0.8% and 0.81 ± 0.09% of the wet muscle tissue, respectively. 16:0 and 18:0 were the main SFA, 18:1 (ω-9 and ω-7) the main MUFA while DHA, EPA and arachidonic acid were the main polyunsaturated fatty acids (PUFA). The SFA/PUFA ratio was 1.5 and the ω-3/ω-6 ratio was 3.02. The cholesterol content was found to be 8.18 ± 0.34 mg/100 g of the wet muscle tissue. Ni, Cr, Mn, Cu, Zn, Fe and Mg were determined in the muscles, skin, hepatopancreas and head of the fish. The covering percentage of the recommended daily allowance/intake (RDA/RDI) for each mineral, in the muscle tissue, has been calculated to 14.2% (males) and 7.89% (females) for Fe, 2.87% for Cu, 4.07% for Zn 0.4% for Mn, 13.9% for Ni, 20.2% for Cr and 10.4% for Mg. © 2007 Elsevier Ireland Ltd. All rights reserved