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

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PMC
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  • Biology

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.

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