摘要
对子二代商品大鲵可食部位分布情况与营养成分进行分析,其中水分、蛋白质、脂肪与灰分采用国标的方法检测,还原糖采用蒽酮比色法。在大鲵体中可食部位占全鱼总质量的76.23%,其中皮肤占全鱼总质量的8.56%,肌肉(即白肉)部分主要分布在背部、腹部、尾部,占总质量的39.90%,血液和内脏占全鱼总质量的23.05%,脂肪组织主要集中分布在尾部,占总质量的4.73%;在不同可食部位中,营养成分主要由水分、蛋白质、脂肪和矿物质元素组成。蛋白质在大鲵体内分布规律为:皮肤>背部肌肉>尾部肌肉>腹部肌肉>肠>肝脏>脂肪。油脂成分在体内分布规律为:脂肪>肝脏>尾部肌肉>肠>腹部肌肉>背部肌肉>皮肤。还原糖只在肝脏中有检出,其他部位均未检出。在大鲵不同可食部位均含有丰富的微量元素。可见,子二代商品大鲵是一种营养价值较高的肉食食品。
In order to understand the nutritional composition of different edible parts of F2 generation of commercial Andrias davidianus, water, protein, fat and ash were determined by the national standard methods and reducing sugar was analyzed by anthrone colorimetry. The edible parts accounted for 76.23% of the total body weight ofAndrias davidianus, including skin （8.56%）, muscle （wheat meat; 39.90%; mainly distributed in the back, belly, and tail ）, blood and internal organs （23.05% in total） and fat （mainly distributed in the tail; 4.73%）. The main nutritional composition of these edible parts was water, protein, fat and mineral elements. These edible parts could be ranked as follows： skin 〉 back muscle 〉 tail muscle 〉 belly muscle 〉 intestine 〉 liver 〉 fat in decreasing order of protein content; fat 〉 liver 〉 tail muscle 〉 intestine 〉 belly muscle 〉 back muscle 〉 skin in decreasing order of fat content. No reducing sugar was found all other edible parts except the liver. All edible parts were rich in trace elements. From these results, it can be seen that F2 generation of commercial Andrias davidianus is a highly nutritional meat food.
出处
《肉类研究》
2012年第5期34-36,共3页
Meat Research
基金
贵阳市科技计划项目([2010]筑科农合同字第8-04号
筑科合同[2011207]03号)
贵州省农业科技攻关项目(黔科合NY字[2010]3054号)
国家星火计划项目(2010GA820001)
贵阳学院青年教师项目(20101211)
关键词
子二代商品大鲵
营养成分
分析
F2 generation of commercial Andrias davidianus
nutritional composition
analysis
