Su, Xiao, Antonas, Kiriakos N and Duo, Li (2004) Comparison of n-3 polyunsaturated fatty acid contents of wild and cultured Australian abalone. International Journal of Food Sciences and Nutrition, 55 (2). pp. 149-154. ISSN 0963-7486 (print), 1465-3478 (online)

Abstract

The fatty acid contents of wild and cultured Australian adult blacklip abalone, Haliotis rubra , were analysed by gas liquid chromatography. Wild abalone contained significantly higher levels of total n-3 polyunsaturated fatty acids (PUFA), eicosapentaenoic acid (20:5n-3), docosapentaenoic acid (22:5n-3) and a -linolenic acid (18:3n-3) than cultured abalone ( P B / 0.05). The predominant n-3 PUFA was docosapentaenoic acid in wild abalone, while in cultured abalone a high level of eicosapentaenoic acid was found. The concentration of docosahexaenoic acid (22:6n-3) was low in both wild and cultured abalone, and cultured abalone had a significantly higher percentage composition of this fatty acid than wild abalone ( P B / 0.01). Significantly higher levels of arachidonic acid (20:4n-6), 22:2n-6, 22:4n-6 and total n-6 PUFA were also found in wild abalone than in cultured animals ( P B / 0.05). The ratio of n-3 PUFA to n-6 PUFA was the same in wild and cultured abalone. Manipulation of nutrient sources of cultured abalone may influence their lipid composition. Consump- tion of either wild or cultured abalone will contribute to dietary n-3 PUFA intake, with benefits to human health.

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