碱提法回收猪骨蛋白质的探讨

STUDIES ON THE TECHNOLOGCAL PARAMETERS OF ALKALI EXTRACTION PROCESS FOR RECOVERING PROTEIN FROM SWINE BONES

对碱提法回收猪骨蛋白质工艺参数的研究表明 ,4种工艺参数对蛋白质得率均有不同程度的影响。其顺序为浸提液 p H>浸提时间 >沉降 p H>浸提温度。碱提法回收猪骨蛋白质的最高得率为 2 5 .7% ,最佳工艺参数为 :浸提时间 10 5 min,浸提液 p H12 .0 ,浸提温度30℃和沉降 p H5 .0。

In this study,the recovery rate of protein from swine bones was found to be influenced by all the four parameters investigated.The significance of their influence,however,was different,being in the order of solvent pH>extraction time> precipitation pH>extraction temperature.The highest recovery rate of protein obtained in this experiment was 25.7 % of the original protein present in te raw bone.The following is recommended as the optimum combination of the four parameters:extraction time 105 min,solvent pH12.0,extraction temperature 30 ℃ and precipitation pH5.0.