【摘要】 以选取的纳豆菌—9号为出发菌株,在最佳摇瓶培养条件基础上通过5L发酵罐扩大培养,确定最优发酵培养条件,纳豆激酶活力较摇瓶培养提高2.05倍;发酵液经真空冷冻干燥得到纤溶活性较高的纳豆激酶干粉,并对纳豆激酶干粉的部分酶学性质进行了研究。更多还原

【Abstract】 In this experiment, natto-9 was selected as the source. Based on the results of shaking experiments, the Bacillus natto was expanded and cultivated with 5-litre ferment jar. The best conditions of ferment were confirmed. The enzyme activity of nattokinase is 2.05 times than shaking experiment; the strong fibrinolytic nattokinase powder was received via freeze-drying. The partial characteristics of nattokinase powder were also studied.更多还原