木瓜蛋白酶酶解牦牛血红蛋白制备氯化血红素关键工艺研究

Study on the preparation technology of hemin from enzymolysis yak blood by papain

摘要: 利用牦牛血中丰富的血红蛋白来制备氯化血红素。以新鲜牦牛血为原材料,通过预处理获得血红蛋白,之后进行酶解获取氯化血红素,在单因素实验的基础上,利用Box-Benhnken中心组合旋转实验和响应面分析法,确定了酶解血红蛋白制备氯化血红素的（酶解温度、酶解时间、p H、酶添加量）最适工艺条件,结果表明,提取氯化血红素的最佳工艺为:酶解温度55℃、酶解时间94 min、p H8.0、酶添加量0.08 g。木瓜蛋白酶对酶解牦牛血红蛋白制备氯化血红素有实际意义,在此工艺条件下,氯化血红素的浓度可达6.47μg/m L。

Abstract: Preparation hemin with high content hemoglobin in yak blood.With fresh yak blood as the material to get the hemoglobin through pre- treatment,then through enzymolysis to get the hemin.On the basement of single factor test,using combination Box-Benhnken center rotation experiment and response surface analysis,the best extraction process of hemin from hemoglobin by enzymolysis as follows: 55 ℃ for enzymolysis temperature,94 min and p H8.0for enzymolysis,enzyme concentration was 0.08 g. After optimization,the yield of hemin reached 6.47 μg / m L. The enzymolysis yak blood by papain extract hemin is a useful method.