alexa Australian fish-An excellent source of both arachidonic acid and ω-3 polyunsaturated fatty acids.
Agri and Aquaculture

Agri and Aquaculture

Journal of Aquaculture Research & Development

Author(s): Gibson RA

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Abstract The fatty acid methyl esters obtained by the esterification of total lipids extracted from 24 species of fin fish and 4 species of invertebrates caught in the rivers and coastal waters of southern Australia were analyzed by gas chromatography. The lipids of most species contained significant levels of arachidonic acid (0.7-15.8\%) as well as the more common marine polyunsaturate, eicosapentaenoic acid (0.7-15.9\%). The major ω6 fatty acid present in most species was 20∶4; however, other fatty acids of this series, including 18∶2, 22∶4 and 22∶5, were present. The level of total ω6 fatty acids ranged from 3.9 to 22.3\% of the total lipid. In general, the level of total ω3 polyunsaturates was higher than the total ω6 fatty acids with levels of ω3 fatty acids ranging from 9.6 to 48.2\%. Only 2 fish (barramundi and gurnard perch) had ω6/ω3 ratios greater than 1.0. Most of the Australian species examined contained low levels of fat (0.5-7.8\% of fresh weight). Two species examined, callop (freshwater) and blue groper (marine) contained sufficient quantities of both fat (7.7 and 7.8\%) and arachidonic acid (4.8 and 9.3\%) to warrant consideration for commercial exploitation. This article was published in Lipids and referenced in Journal of Aquaculture Research & Development

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