在米曲霉和黑曲霉混合制曲的曲料中添加促生长物质进行试验，研究其对曲料蛋白酶活力和孢子数的影响。
Through adding some urging growth materials to koji, which mixed by Aspergillus oryzae and Aspergillus niger , this paper studied effect of it on spore number and protease activity.
研究结果表明，黑曲霉菌株ANSO_1 产酸性蛋白酶可以作为饲料添加剂。
The result indicates acidprotease excreted by Aspergillus niger ANSO_1 is fit to feed as additive.
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