托氏[虫昌]螺营养成分分析及评价研究  

Analysis and Evaluation of Nutritive Composition in Muscle of Snail Umbonium thomasi

作　　者：胡清彪 李晓东[1,2] 李应东 刘胥 孙娜 HU Qingbiao;LI Xiaodong;LI Yingdong;LIU Xu;SUN Na(College of Animal Science and Veterinary Medicine,Shenyang Agricultural University,Shenyang 110866,China;Panjin Guanghe Crab Industry Co.,Ltd.,Panjin 124200,China)

机构地区：[1]沈阳农业大学动物科学与医学学院,辽宁沈阳110866 [2]盘锦光合蟹业有限公司,辽宁盘锦124200

出　　处：《水产科学》2022年第6期1057-1063,共7页Fisheries Science

基　　金：沈阳农业大学高层次人才项目(880416005).

摘　　要：托氏[虫昌]螺为我国北方常见的小型螺类,具有较高的经济价值,然而其营养成分组成尚不明确。为评价分析托氏[虫昌]螺营养成分,测定托氏[虫昌]螺[(1.3~1.6)g]软体部分的一般营养成分、氨基酸和脂肪酸的组成。试验结果显示:托氏[虫昌]螺中水分、粗蛋白、粗脂肪和粗灰分的质量分数分别为79.48%、15.53%、1.39%和3.18%;共检测到17种氨基酸,其中谷氨酸含量最高,达到20.43mg/g,其次分别为天冬氨酸、精氨酸和亮氨酸,含量分别为12.56、11.39 mg/g和8.98 mg/g,组氨酸含量最低,为2.05mg/g,必需氨基酸与呈味氨基酸分别占氨基酸总量的40.80%和34.29%,必需氨基酸指数为46.80;共检测到18种脂肪酸,其中饱和脂肪酸8种(总量为35.91%),单不饱和脂肪酸3种(总量为20.64%),多不饱和脂肪酸7种(总量为22.88%),二十二碳六烯酸和二十碳五烯酸的总量为16.13%。综上,托氏[虫昌]螺是一种营养价值较高的食物来源。Snail Umbonium thomasi,a common small snail in northern China,has high economic value.However,its nutritional composition is unclear currently.The nutrients,amino acids and fatty acids of the snail with body weight of 1.3—1.6 g were investigated and analyzed in order to evaluate and analyze its nutritional components.The results showed that there were the moisture of 79.48%,crude protein of 15.53%,crude fat of 1.39%and crude ash of 3.18%in fresh muscle of U.thomasi.A total of 17 kinds of amino acids were found in this experiment.Among 17 kinds of amino acids,glutamic acid content was the highest,accounting for 20.43 mg/g,followed by aspartate,arginine and leucine,accounting for 12.56 mg/g,11.39 mg/g and 8.98 mg/g,respectively.The content of histidine was the lowest among the detected 17 kinds of amino acid.The essential amino acids and the flavor amino acids accounted for 40.80%and 34.29%of total amino acids respectively,the essential amino acids index(EAAI)was 46.80.As for fatty acids,18 kinds of fatty acids were detected,8 kinds of saturated fatty acids(SFA),3 kinds of monounsaturated fatty acid(MUFA)and 7 kinds of polyunsaturated fatty acids(PUFA),accounting for 35.91%,20.64%and 22.88%,respectively.The total content of DHA and EPA was 16.13%.Therefore,the snail was a kind of delicious food source with abundant nutrition and high value.

关 键 词：托氏[虫昌]螺 营养成分分析 评价 

分 类 号：S917[农业科学—水产科学]