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ABSTRACT
The objective of this study was to chemically evaluate the lipid and protein from pollock male and female livers. Pollock livers, regardless of gender, were over 50% lipid, with about 98% of the lipid in the form of triacylglycerides. Protein content of male and female livers was similar at approximately 7%. Most of the fatty acids content was not significantly different between males and females. The abundance of saturated, monounsaturated and polyunsaturated fatty acids in all extracted oils averaged about 20%, 55% and 24%, respectively. The omega-3 and omega-6 fatty acid levels of all livers were approximately 22% and 2.0%, respectively. Only small gender differences were detected between pollock liver lipids and protein. Pollock liver protein is of high quality and extracted oil is a valuable source of omega-3 fatty acids. The contents of most amino acids in the samples were similar for both males and females, and samples had high levels of methionine (3.2 and 3.6%), lysine (6.8 and 7.6%) and other essential amino acids.