Levels of Omega 3 Fatty Acids in Australian Seafood

澳大利亞海鮮中n-3脂肪酸的含量

Sahar S A M Soltan ； Robert A Gibson

《Asia Pacific Journal of Clinical Nutrition》 17卷3期 (2008/09) Pp. 385-390

https://doi.org/10.6133/apjcn.2008.17.3.04

摘要

這個研究的目的是要測定南澳大利亞省常食用魚類中n-3脂肪酸的含量。在測試的26個樣本中，n-3脂肪酸佔總脂肪的17.7%到53.7%，最主要為DHA (22:6n-3)，佔總脂肪的9.5%至47.1%。n-6脂肪酸佔總脂肪的2.3%到20.2%，主要是花生四烯酸(AA,20:4n-6)。脂肪較多的魚類如Gemfish、大西洋鮭魚及箭魚是n-3脂肪酸的良好來源(每100g魚中分別含1360、2252及2571mg)。而低脂魚如Ling、Blue Warhou及Blue Grenadier(含脂量為0.5、0.7及0.7%)，則含較少的n-3脂肪酸(100g魚分別含222、257及247mg)。因為澳大利亞人常吃的大多數白色魚類中脂肪含量很低，能提供的n-3脂肪酸亦有限。每天必需攝取40至450g的魚才能得到1g的n-3脂肪酸。

關鍵字

n-3脂肪酸 ； 膳食脂肪 ； 魚 ； 魚油 ； 飲食

並列摘要

The aim of this study was to determine the quantity of omega 3 (n-3) fatty acids in commonly consumed species of South Australian fish. Omega 3 fatty acids ranged from 17.7% to 53.7% of total fat with docosahexaenoic acid (DHA, 22:6n-3) as the major omega 3 fatty acid in all 26 species tested (range 9.5 % to 47.1% of total fat). The levels of total omega 6 (n-6) fatty acids ranged from 2.3% to 20.2% of total lipids, chiefly as arachidonic acid (AA, 20:4n-6). Fatty fish such as Gemfish, Atlantic Salmon and Swordfish were found to be good sources of omega-3 fatty acid (1360, 2252 and 2571 mg/100g fish respectively), while low fat fish such as Ling, Deep Sea Bream (Blue Warhou) and Blue Grenadier (0.5, 0.7 and 0.7% fat) had low levels of omega 3 fatty acid (222, 257 and 247 mg/100g). Because most white table fish consumed by Australians are so low in fat they are actually a limited source of omega 3 fats. The amount of fish required to be consumed to provide 1 g of omega 3 fatty acid per day ranged from 40 to 450 g.

並列關鍵字

omega 3 fatty acids ； dietary fats ； fish ； fish oils ； diet