Gene Expression and Molecular Characterization of a Xylanase from Chicken Cecum Metagenome

Table 1

Substrate specificity of the purified recombinant

	Relative activity
Beechwood xylan	100
Oat-spelt xylan	94
Carboxymethyl cellulose	0
α-Cellulose	0
Starch	0
Barley -glucan	0
4-nitrophenyl--D-xylopyranoside	55
4-nitrophenyl--D-cellobioside	0
4-nitrophenyl-α-D-galactopyranoside	0

test concentration for polysaccharide substrates was 1% (w/v) while that for the synthetic chromogenic substrates was 4 mg/mL. activity towards beechwood xylan which was the highest activity was defined as 100%. All the values are means of three replications.