Endoglucanase Endoglucanase activity was assayed
using 50 mM KOH-KH2PO4 (pH6.2), 2% carboxymethyl
cellulose (CMC) and 0.5 mL culture supernatant (Buswell
et al. 1996). The mixture was maintained at 50°C for
30 min and reaction was terminated by adding 3 mL of
dinitrosalicyclic acid (DNS) reagent and boiled at 100°C
for 15 min. The absorbance was recorded at 565 nm. One
unit of endoglucanase was expressed by 1 μmol of glucose
liberated per mL enzyme per min.