Abstract
AbstractThe biotransformation of (−)‐bornyl acetate by three Basidiomycetes, Collybia velutipes, Trametes hirsuta and Ganoderma applanatum was monitored for 7 days. The observed reactions were regio‐ and stereo‐selective hydroxylation, acetate hydrolysis and oxidation of alcohols to carbonyl compounds. Nine cyclic compounds, three of which (6‐exo‐hydroxybornyl acetate, 8‐hydroxy‐5‐exo‐hydroxybornyl acetate, 9‐hydroxy‐5‐exo‐hydroxybornyl acetate), not previously described, were isolated from the fermentation broth and therefore were identified. Product types and concentrations varied with strain and incubation time. The toxicity of the substrate was assessed from the variation of fungal biomass in the course of incubation. Copyright © 2005 Society of Chemical Industry
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