江西省两地野生泥鳅营养成分分析
2021-11-03周美玉韩财安李达江俊勇
周美玉 韩财安 李达 江俊勇



摘 要:对江西南昌和上高的野生泥鳅的营养成分进行了测定分析,结果表明,南昌泥鳅和上高泥鳅的水分、灰分、脂肪、蛋白质含量分别为76.9%、1.1%、1.3%、19.9%和77.3%、1.3%、1.4%、19.2%。南昌泥鳅的18种氨基酸总量略高于上高泥鳅,分别为20.1%、18.7%;其中甘氨酸、脯氨酸和色氨酸含量以上高泥鳅稍高,其他15种氨基酸均以南昌泥鳅含量稍高;含量最高的均为谷氨酸、天门冬氨酸、赖氨酸和亮氨酸,最低的均为胱氨酸和色氨酸;人体必需氨基酸和鲜味氨基酸含量均以南昌泥鳅的略高。2地泥鳅肌肉中均检测出21种脂肪酸,其中饱和脂肪酸和单不饱和脂肪酸以南昌泥鳅含量稍高,多不饱和脂肪酸以上高泥鳅的含量稍高。总体而言,江西省内生态环境优良,野生泥鳅的营养价值较高。
关键词:江西省;野生泥鳅;营养成分;蛋白质;氨基酸;脂肪酸
中图分类号 S917.4文献标识码 A文章编号 1007-7731(2021)19-0077-03
Analysis of Nutrient Composition of Wild Misgurnus anguillicaudatus in Jiangxi Province
ZHOU Meiyu et al.
(Jiangxi Biotech Vocational College, Nanchang 330200, China)
Abstract: The nutrient compositions of wild Misgurnus anguillicaudatus in Nanchang and Shanggao of Jiangxi Province were analyzed. The water content, ash, crude fat and crude protein of Nanchang and Shanggao M. anguillicaudatus were 76.4%, 1.2%, 1.1%, 18.1% and 71.8%, 1.1%, 8.0%, 18.6%, respectively. The total of 18 amino acids of Nanchang′s (20.1%) was slightly higher than Shanggao′s (18.7%). In which, the contents of Glycine, Proline and Tryptophan were a little higher in Shanggao′s; and the other 15 amino acids were higher in Nanchang′s. The highest contents of amino acids both were Glutamic acid, Aspartic acid, Lysine and Leucine, while the lowest were Cystine and Tryptophan. Both of them, the contents of essential amino acids for human and the delicious amino acids were higher in Nanchang individuals. 21 kinds of fatty acids were both detected. The Saturated and monounsaturated fatty acids were higher in Nanchang′s and the polyunsaturated fatty acids were higher in Shanggao′s. Orerall, the ecological environment of Jiangxi Province was excellent, and the nutritional value of wild loach was high.
Key words: Jiangxi Province; Wild loach; Nutrient Composition; Protein; Amino acids; Fatty acids
泥鰍(Misgurnus anguillicaudatus)隶属于鲤形目鳅科,是杂食性的淡水鱼类,其适应性强、抗病性好,在我国各地广泛分布,是一种小型底层经济鱼类。泥鳅富含优质蛋白质、维生素、烟酸等,脂肪、胆固醇含量低,是肉质鲜美、营养丰富的水产品,有“水中人参”的美誉。江西省具有较丰富的泥鳅资源和优良的生态环境。本研究对江西省内南昌县向塘镇和上高县芦州乡的2种野生泥鳅的营养成分进行了测定分析。
1 材料与方法
1.1 材料 野生泥鳅分别于江西省南昌县向塘镇黄山小学附近(南昌泥鳅)和江西省上高县芦州乡隆信水产良种繁殖场附近(上高泥鳅)用地笼抓获,采样地点如图1所示。……
