Su X Q, Antonas K N, Li D
School of Biomedical Sciences, Victoria University, Melbourne 8001, Australia.
Int J Food Sci Nutr. 2004 Mar;55(2):149-54. doi: 10.1080/09637480410001666469.
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 alpha-linolenic acid (18:3n-3) than cultured abalone (P<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<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<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. Consumption of either wild or cultured abalone will contribute to dietary n-3 PUFA intake, with benefits to human health.
采用气相色谱法分析了野生和养殖的澳大利亚成年黑唇鲍（Haliotis rubra）的脂肪酸含量。野生鲍鱼中总n-3多不饱和脂肪酸（PUFA）、二十碳五烯酸（20:5n-3）、二十二碳五烯酸（22:5n-3）和α-亚麻酸（18:3n-3）的含量显著高于养殖鲍鱼（P<0.05）。野生鲍鱼中主要的n-3 PUFA是二十二碳五烯酸，而养殖鲍鱼中二十碳五烯酸含量较高。野生和养殖鲍鱼中二十二碳六烯酸（22:6n-3）的浓度都较低，且养殖鲍鱼中该脂肪酸的组成百分比显著高于野生鲍鱼（P<0.01）。野生鲍鱼中花生四烯酸（20:4n-6）、22:2n-6、22:4n-6和总n-6 PUFA的含量也显著高于养殖鲍鱼（P<0.05）。野生和养殖鲍鱼中n-3 PUFA与n-6 PUFA的比例相同。养殖鲍鱼营养源的调控可能会影响其脂质组成。食用野生或养殖鲍鱼都有助于膳食中n-3 PUFA的摄入，对人体健康有益。
