By single-factor experiments, the optimal carbon source of NA-25 producing fibrinolytic enzyme was bran and the optimal nitrogen source was peptone and NaNO_3. Plackett-Burman design was undertaken to evaluate the effects of different factors.

• 通过单因素实验确定米曲霉NA-25产纤溶酶的最佳碳源为麸皮,最佳氮源为蛋白胨和NaNO_3。