alexa Biotransformation of the diperpenoid, isosteviol, by Aspergillus niger, Penicillium chrysogenum and Rhizopus arrhizus.
Toxicology

Toxicology

Journal of Drug Metabolism & Toxicology

Author(s): de Oliveira BH, dos Santos MC, Leal PC

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Abstract The biotransformation of isosteviol (ent-16-ketobeyeran-19-oic acid) by three fungi is described. Aspergillus niger produced the 7 beta-OH derivative, ent-7 alpha-hydroxy-16-ketobeyeran-19-oic, and the 1 alpha, 7 beta-diOH derivative, ent-1 beta, 7 alpha-dihydroxy-16-ketobeyeran-19-oic acid. The 17-OH compound, ent-17-hydroxy-16-ketobeyeran-19-oic acid, was obtained with Penicillium chrysogenum. Rhizopus arrhizus produced the 7 beta-OH derivative, ent-7 alpha-hydroxy-16-ketobeyeran-19-oic acid. The isolated metabolites were characterised by IR, NMR and MS.
This article was published in Phytochemistry and referenced in Journal of Drug Metabolism & Toxicology

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