Background:

Cellulase is an enzyme catalyzing the hydrolysis of certain linkages in cellulose and other carbohydrates.

Cellulase exhibits significant antibiofilm activity against B. cepacia, but does not have much action on its growth[1]. Cellulase and protease leads to the CST increasing in the case of activated sludge, but the effect of cellulase is lower than that of protease at the same concertration. Cellulase decreases the particle size of activated sludge. Cellulase has no significantly effect on sludge dewatering in terms of solid concentration after centrifugation[2].

[1]. Rajasekharan SK, et al. Cellulase inhibits Burkholderia cepacia biofilms on diverse prosthetic materials. Pol J Microbiol. 2013;62(3):327-30. [2]. Pei HY, et al. Effect of protease and cellulase on the characteristic of activated sludge. J Hazard Mater. 2010 Jun 15;178(1-3):397-403.