Research Repository

Seasonal variations of total lipid and fatty acid contents in the muscle of two Australian farmed abalone species

Su, Xiao, Antonas, Kiriakos N, Duo, Li and Nichols, Peter (2006) Seasonal variations of total lipid and fatty acid contents in the muscle of two Australian farmed abalone species. Journal of food lipids, 13 (4). pp. 411-423. ISSN 1065-7258 (print), 1745-4522 (online)

Full text for this resource is not available from the Research Repository.


The total lipid content and individual fatty acid (FA) concentrations of two farmed abalone species, greenlip abalone ( Haliotis laevigata ) and blacklip abalone ( Haliotis rubra ), were analyzed through four seasons using gas liquid chromatography. Similar variations were recorded for the two species. Sig- nificantly higher concentrations of total lipid and total saturated fatty acids were found in summer, while the contents of total n-3 and n-6 polyunsaturated fatty acids (PUFAs) and total monounsaturated fatty acids were markedly higher in winter and spring. The two predominant n-3 PUFAs were eicosap- entaenoic acid (EPA, 20:5n-3; 34–43%) and docosapentaenoic acid (DPA, 22:5n-3; 40–53%). The seasonal variation of EPA was similar to that of total n-3 PUFA, while the contents of DPA were significantly higher in winter, spring and summer than in autumn. A higher n-3/n-6 PUFA ratio was found in winter and autumn in greenlip abalone. Other main FAs, including 16:0, 18:0, 17:1, 18:1n-9, 18:1n-7, 18:2n-6, 20:4n-6 and 22:2 NMI, also showed seasonal variations. Farmed abalone represents a source of the health-benefiting long- chain n-3 PUFA (n-3 LC-PUFA) for human consumption, with n-3 LC-PUFA content of 65–106 mg/100 g.

Item Type: Article
Uncontrolled Keywords: fatty acids, lipids, gonads, muscles, fats, aquaculture, Port Phillip Bay, Victoria
Subjects: Historical > Faculty/School/Research Centre/Department > School of Biomedical and Health Sciences
Current > FOR Classification > 1111 Nutrition and Dietetics
Depositing User: VUIR
Date Deposited: 15 May 2013 04:14
Last Modified: 29 Jul 2020 02:17
ePrint Statistics: View download statistics for this item
Citations in Scopus: 16 - View on Scopus

Repository staff only

View Item View Item

Search Google Scholar