Production of Feruloyl Esterase from Aspergillus niger by Solid-State Fermentation on Different Carbon Sources

Table 4

Effect of nitrogen source on production of feruloyl esterase in mixtures of wheat bran and maize bran or sugarcane bagasse.

	Feruloyl esterase activity (mU/g)
	W/M*		W/S
	1 : 1	1 : 2	1 : 1	1 : 2
NaNO3	4.84 ± 0.15**	5.43 ± 0.13	4.43 ± 0.08	4.62 ± 0.13
NH4NO3	4.98 ± 0.14	5.87 ± 0.16	4.54 ± 0.14	4.78 ± 0.14
Urea	4.76 ± 0.11	5.09 ± 0.12	4.52 ± 0.13	4.12 ± 0.13
(NH4)2SO4	6.23 ± 0.15	6.78 ± 0.14	5.32 ± 0.16	5.86 ± 0.15

*W: wheat bran; S: sugarcane bagasse; M: maize bran. **means ± SD, 𝑛=3.