几种鱼卵营养成分对比分析

Comparative analysis of nutritional components of several roes

  • 摘要: 为了解不同种类鱼卵营养组成特征,文章分别测定了大西洋鲑(Salmon solar)、飞鱼(Exocoetidae cypselurus)、大黄鱼(Pseudosciaena crocea)、西伯利亚鲟(Acipenser baeri)、施氏鲟(A. schrenckii)、俄罗斯鲟(A. gueldenstaedti)和达氏鳇(Huso dauricus)鱼卵的基本成分、氨基酸、脂肪酸及矿物质元素。结果显示,飞鱼鱼卵水分质量分数(813.1 g·kg–1)最高,灰分(16.0 g·kg–1)和粗蛋白(133.5 g·kg–1)最低;施氏鲟鱼卵粗蛋白(281.5 g·kg–1)和粗脂肪(166.3 g·kg–1)最高;大西洋鲑卵粗脂肪(54.9 g·kg–1)最低。俄罗斯鲟鱼卵总氨基酸(TAA) (276.7 g·kg–1)和鲜味氨基酸(DAA,93.1 g·kg–1)最高;除色氨酸外,7种鱼卵氨基酸评分均高于FAO/WTO标准,且必需氨基酸(EAA)与TAA比为41.34%~43.89%。鱼卵中饱和脂肪酸(SFA)、单不饱和脂肪酸(MUFA)和多不饱和脂肪酸(PUFA)的含量分别为25.83%~35.41%、21.39%~26.65%和41.84%~47.77%,其中EPA+DHA总量高达20.06%~40.59%。鱼卵中常量元素磷(P)和微量元素铁(Fe)、锌(Zn)含量较高。结果表明,7种鱼卵均含有各种丰富的营养成分,但从粗脂肪、不饱和脂肪酸含量和氨基酸评价来看,4种鲟鱼卵的营养价值优于其他3种鱼卵。

     

    Abstract: In order to analyze the nutrition characteristics of different kinds of roes, we determined the proximate composition, amino acids, fatty acids and mineral elements of roes of Salmon solar, Exocoetidae cypselurus, Pseudosciaena crocea, Acipenser baeri, A. gueldenstaedti, A. schrenckii and Huso dauricus. The results show that E. cypselurus roe had the highest moisture content (813.1 g·kg–1), lowest ash content (16.0 g·kg–1) and lowest crude protein content (133.5 g·kg–1). A. schrenckii roe had the highest crude protein content (281.5 g·kg–1) and crude fat content (166.3 g·kg–1), and S. solar roe have the lowest crude fat content (54.9 g·kg–1). The contents of total amino acids (27.67%) and delicious amino acids (9.31%) in A. gueldenstaedti roe were the highest. The amino acid score (AAS) of the seven kinds of roes were higher than the FAO/WTO standard except tryptophan, and the ratio of essential amino acids to total amino acids ranged from 41.34% to 43.89%. The contents of saturated fatty acids (SFA), monounsaturated fatty acids (MUFA) and polyunsaturated fatty acids (PUFA) in seven kinds of roes were 25.83%−35.41%, 21.39%−26.65% and 41.84%−47.77%, respectively, and the total amount of EPA+DHA ranged from 20.06% to 40.59%. The roes contain high contents of phosphorus (P), iron (Fe) and zinc (Zn). Thus, the roes of the seven species are rich in various nutrients. According to the contents of crude fat and unsaturated fatty acid as well as amino acid evaluation, the nutritional values of four sturgeon roes are better than those of the other three kinds of roes.

     

/

返回文章
返回