Abstract

Acetyl esterase production was detected in a wood-rotting fungus,Coriolus versicolor, by the formation of a clear zone on a double layer agar plate containing glucose β-d-pentaacetate. Two polysaccharide acetates, carboxymethyl cellulose acetate and xylan acetate, also served as detectable substrates in place of glucose acetate to form clear zone. In an esterase assay, this fungal esterase showed a higher specificity to acetylxylan than did porcine liver esterase, indicating that it is an acetylxylan esterase.

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