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Appl Environ Microbiol. 1966 November; 14(6): 1015-1018
Copyright © 1966 American Society for Microbiology. All Rights Reserved.

Solubilization of Acid-Swollen Cellulose by an Enzyme System from a Species of Alternaria¹

Department of Chemical Engineering and Department of Chemistry, University of Missouri at Rolla, Rolla, Missouri

ABSTRACT

An unknown species of Alternaria, when grown on a medium containing carboxymethylcellulose as a carbon source produced a mixture of extracellular enzymes which solubilized acid-swollen cellulose. The product of the hydrolysis was a 1:2 molar mixture of cellobiose and glucose. The organism apparently produced no cellobiase. It is suggested that the mixture of cellulolytic enzymes contains at least two different enzymes which degrade cellulose in an endwise manner.

² Present address: Clinton Corn Processing Co., Clinton, Iowa.

¹ Taken from the dissertation submitted by Robert M. Logan as partial fulfillment of the requirements for the Ph.D. degree, The University of Missouri at Rolla.