The results showed that the activity of xylanase in A. niger J506 reached the highest level of 226 U/ mL at 78-82 th hour in normal fermentation medium.

• 结果表明,用正常培养基培养时,木聚糖酶的活性在78~82 h达到产酶高峰,酶活力为226 U/mL。