Cost-Effective Production and Optimization of Alkaline Xylanase by Indigenous Bacillus mojavensis AG137 Fermented on Agricultural Waste

Table 1

Effects of nitrogen sources on xylanase production.

Organic nitrogen sources	Xylanase activity (IU/mL)	Inorganic and combination of organic and inorganic nitrogen sources	Xylanase activity (IU/mL)
Peptone	118.118	NH4NO3	163.4742
Beef extract	157.1342	NaNO3	137.626
Casein	140.065	(NH4)2SO4	74.714
*Yeast extract	196.1496	Yeast extract and NH4NO3	193.223
Y + tryptone	249.308	Yeast extract and KNO3	185.4204
Y + beef extract	213.218	Yeast extract and NaNO3	180.89
Control (Y + peptone)	205.415	Yeast extract and (NH4)2SO4	91.305

*Y = *Yeast extract.