“…Although this discussion focuses primarily on the action of hydrolytic enzyme systems on cellulose, it should be realized that such systems are also active on hemicellulose, and enzymes active specifically on hemicellulose are commonly coproduced by cellulolytic microorganisms. Prior reviews consider the complexed cellulases of anaerobic bacteria (31,33,36,37,38,39,40,41,43,165,166,182,383,565,606,621), noncomplexed fungal and bacterial cellulases (122,349,579,653,672,673,756), cellulase structure and catalytic mechanisms (58,136,470,624,683,722,757,758), cellulase (hydrolase) families (254,255,256,258,260), and biotechnological applications (52,214,501,604,605).…”