Cellulose is a heterogeneous polysaccharide, and its enzymatic hydrolysis requires endoglucanase, exoglucanase (cellobiohydrolase), and beta-glucosidase to work together. We summarize the most commonly used assays for individual enzymes and cellulase mixture.
Zhang, Y. H. P., Hong, J., & Ye, X. (2009). Cellulase assays. Methods in Molecular Biology (Clifton, N.J.). https://doi.org/10.1007/978-1-60761-214-8_14