BETA-(1→3)- AND BETA-(1→4)-D-GLUCANASE PRODUCTION BY THREE FUNGI

Abstract
Schizophyllum commune, Polyporus versicolor, and P. betulinus have been tested for endo-barley-β-glucanase, endo-carboxymethylcellulase, and laminarin-splitting activities for up to 36 days of growth in shake culture on seven carbon sources. S. commune, P. versicolor, and P. betulinus were decreasingly effective as enzyme producers. Barley β-glucan and cellulose derivatives were the most effective carbon sources. Barley β-glucanase, which is inducible for S. commune, may act by cleavage of β-(1→3) bonds.