摘要
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。
In this experiment, common nutritional components and the composition of amino acids and fatty acids of eggs of Hemitripterus villosus were determined by routine methods to evaluate the nutritive quality of eggs of Hemitripterus villosus. The results showed as follows： the content of crude protein in eggs of Hemi- tripterus villosus was 17.26% （fresh weight basis）, and the contents of total amino acid （TAA）, essential a- mino acids （EAA） and nonessential amino acids （NEAA） were 78.77% , 33.24% and 38.95% （ dry weight basis）, respectively. The ratio of EAA to TAA （EAA/TAA） was 0.42 and the ratio of EAA to NEAA （EAA/NEAA） was 0.85. Amino acid score （AAS） and chemical score （CS） for the first limiting amino acid （ methionine ＋ cysteine） were 0.82 and 0.47, respectively. Essential amino acid index （EAAI） of eggs of Hemitripterus villosus was 75.19. The content of crude fat in eggs of Hemitripterus villosus was 2.83% （ fresh basis weight）, and the contents of saturated fatty acids （ SFA）, monounsatarated fatty acids （MUFA） and polyunsaturated fatty acids （PUFA） accounted for 24.73%, 23.86% and 50.29% of total fatty acids, respectively. Moreover, the content of eicosapntemacnioc acid （EPA） ＋ docosahexaenoic acid （DHA） in eggs of Hemitripterus villosus was as high as 40.59% with EPA/DHA at 0.68. It is concluded that the eggs of Hemitripterus villosus have high nutritional value, which are suitable to produce caviar.
出处
《动物营养学报》
CAS
CSCD
北大核心
2014年第4期1103-1110,共8页
CHINESE JOURNAL OF ANIMAL NUTRITION
基金
国家海洋局公益性行业科研专项(2012418025)
辽宁省科技厅重大项目(2011203005)
关键词
绒杜父鱼卵
氨基酸
脂肪酸
营养评价
eggs ： Hemitripterus villosus
amino acid
fatty acid
nutritional evaluation
