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绒杜父鱼卵营养成分分析及评价

DOI: 10.3969/j.issn.1006-267x.2014.04.032

Keywords: 绒杜父鱼卵,氨基酸,脂肪酸,营养评价

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Abstract:

为了对绒杜父鱼卵的营养品质进行评价,本试验采用常规方法对绒杜父鱼卵的一般营养成分以及氨基酸和脂肪酸组成进行测定。结果表明:绒杜父鱼卵中粗蛋白质含量为17.26%(鲜重基础),总氨基酸(TAA)、必需氨基酸(EAA)和非必需氨基酸(NEAA)含量分别为78.77%、33.24%、38.95%(干重基础),EAA/TAA、EAA/NEAA分别为0.42、0.85;蛋氨酸+半胱氨酸为第一限制性氨基酸,其氨基酸评分(AAS)为0.82,化学评分(CS)为0.47。绒杜父鱼卵的必需氨基酸指数(EAAI)为75.19。绒杜父鱼卵中粗脂肪含量为2.83%(鲜重基础),其中饱和脂肪酸(SFA)、单不饱和脂肪酸(MUFA)和多不饱和脂肪酸(PUFA)分别占脂肪酸总量的24.73%、23.86%、50.29%。此外,绒杜父鱼卵中C20:5n-3(EPA)+C22:6n-3(DHA)含量高达40.59%,EPA/DHA为0.68。由此得出,绒杜父鱼卵具有较高的营养价值,较为适合生产鱼子酱。

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