摘要
猪血浆蛋白粉系由屠宰猪全血经分离、干燥所得之高蛋白质制品.其干燥制品净蛋白质产率达8—10%.营养成分分析结果含蛋白质72.2%,脂肪2.58%,铁126μg/g,钙770μg/g,总磷1330μg/g,铜70.12μg/g,锌24.5μg/g,锰1.99μg/g,水分含量8.8%.氨基酸组成分析表明制品含有18种机体生长需要的氨基酸成分,其中8种人体必需氨基酸俱全.按“AOAC”方法采用28天大白鼠喂养试验证明,血浆蛋白粉制品对幼年大白鼠具有良好的促生长作用.以鸡蛋蛋白为参考模式,在喂养试验的第8天血浆蛋白组动物体重增长比率持续高于鸡蛋蛋白组.氮平衡试验对喂养大白鼠FE,PER NPR和TD,BV,NPU,NB等7项营养学分析指标的评定结果,提示该项制品具有良好的体内消化率和生物利用率,不失为一类具有良好开发前景的动物性氮源.
Protein is a fundanmental material of every cell or tissue in the body. Amio acid is a basic structural unit for any protein. The plasma protein of animals is a rish resource as a nutritive food potentially.
The blood plasma was separated from the red and white blood corpusc-les by centrifugalization. The plasma yield was 60% containing somewhat less then 8-10% protein. A simple calculation indicated that the plasma contained about 28-30% of the protein found in the whole blood.
The dried blood plasma of swine had high nutritional quality. lt contained crude protein 72.2%, fat 2.58%, iron 126μg/g, calcium 770μg/g, total phosphorus T330μ.g/g, manganese 1.99 μg/g, zinc 24.5 μg/g, copper 70.12μg/g and water 8.8%.Amino acid anal ysis of the plasma protein indicated that the protein contained eighteen amino acids and all eight of the amino acids essential to human nutrition, amounting to 42.05% of the total amino acids content. However, tryptophane and methionire were the first and the second limited amino acids for plasma protein of the swine blood. The chemical score was 30.92%. The amino acid score was 50.70%. The essential amino acid index was 62.34%.
Animal experiments indicated that the plasma protein could promote growth in young rats.Body weight of the group fortified with the plasma protein was increased faster than the egg protein group in a twenty-eight days experiment ( see the growth curve, figure 1). The protein efficiency ratio, food efficiency and net protein ratio of the plasma protein, were 2.88±0.50,26.80±4.8 o ,3.32 ± 0.50 in the ten days feeding experiment and 2.73 ± 0.10, 25.38 ± 1.11, 4.04 ± 0.55 in the twenty-eight days feeding experiment respectively. The nitrogen balance test showed that the true digestibility, biological value, net protein utilization and nitrogen balance value were 79.5 ± 5.29, 73.9 ± 6.60, 58.6 ± 4.80, and 0.49 ± 0.11 respectively. These studies indicated that the plasma protein of swine could be a satisfactory ingredient for food.
出处
《江西科学》
1990年第1期24-32,共9页
Jiangxi Science
关键词
猪血浆蛋白粉
营养评价
Swine plasma protein, Nutrition evaluation, Feeding test of animal
