Research Article

Production and Partial Characterization of an Alkaline Xylanase from a Novel Fungus Cladosporium oxysporum

Table 1

Effect of carbon source on xylanase production by C. oxysporum GQ-3 at 30°C under submerged fermentation for 5 d.

Carbon source (w/v)Xylanase activity (U/mL)

0.5% wheat bran30.77 ± 1.25
1.0% wheat bran52.94 ± 3.17
0.5% oat xylan26.43 ± 1.94
1.0% oat xylan46.38 ± 2.55
0.5% corn cob12.66 ± 3.29
1.0% corn cob33.51 ± 1.48
1.0% starch1.95 ± 0.46
1.0% glucose2.82 ± 0.98
1.0% fructose0.83 ± 0.12
1.0% xylose20.32 ± 2.41
1.0% sobiol1.35 ± 0.73
1.0% maltose2.91 ± 0.22

Other media compositions/g/L: KH2PO4 1.0, MgSO4·7H2O 1, CaCl2·2H2O 0.3, and yeast extract 1.0.