Abstract
Salmon oils separated from salmon processing waste and hydrolysate and their derived methyl esters were analyzed and compared with corn oil and its methyl ester. These materials were characterized for their fatty acid profiles, viscosity, volatility, thermal properties, low temperature properties, oxidative stability, and heating value. The salmon oil methyl esters contained 26.64% saturated fatty acid methyl esters compared to 13.68% for corn oil methyl ester. Salmon oil methyl esters also contained relatively high concentrations of eicosapentaenoic acid (C20:5) and docosahexaenoic (C22:6) acid methyl esters. Despite these differences in fatty acid composition, salmon and corn oil methyl esters had comparable physical properties. In addition, the methyl esters produced from salmon oils extracted from fish processing by-products and hydrolysate showed little difference in their physical properties.
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