| abstract |
Substantially pure pyrannose-2-oxidase preparations free of enzymatic contaminants for use with glucosone, in particular pyrannosone dehydratase activity, which exhibit measurable activity at a pH selected between approximately 4.4 and 7.0, prepared from mycelia of Polyporus obtusus, Coriolus versicolor and Lenzites betulinus. The enzymes are used in the production of pure pyrannosones from the corresponding pyrannose. |