Table 3: Effect of carbon sources on protease production by B. circulans MTCC 7942.

Carbon source (1%)#Protease activity
(U/mL SD)
Specific activity
(U/mg SD)

Control
Xylose
Fructose
Sucrose
Molasses
Maltose
Glucose
Starch

Basal medium containing (g/L): soybean meal, 10; KH2PO4, 1; MgSO4·7H2O, 0.05; CaCl2, 1; Na2CO3, 8, and cultural parameters (pH 10.0) at 37°C and 100 rpm.