The suitable carbon and nitrogen sources for xylanase production were lactose, mannose, raffinose, xylan, wheat bran , beef extract and yeast extraction.

• 结果表明，适宜产酶碳源为乳糖、甘露糖、棉子糖、木聚糖和麸皮，氮源为牛肉膏和酵母膏；