结果表明：(1)加入植酸后其糖化酶活力均有很大提高。
The results were follows: (1) Aspergillus flavus's activity of glucoamylase had risen obviously after PA were added into medium.
对转化子进行摇瓶发酵研究，发酵终止时转化子GB0506的糖化酶活力比出发菌株F0410提高了17.5%。
Shake-flask fermentation under optimal conditions showed that glucoamylase secreted by the transformant GB0506 was 17.5% higher than parental strain F0410 at the end of fermentation.
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