Microbial Transformations of 7-Hydroxyflavanone

Abstract EN

Microbial transformations of racemic 7-hydroxyflavanone using strains of genus Aspergillus (A.

niger KB, A.

niger 13/5, A.

ochraceus 456) and the species Penicillium chermesinum 113 were studied.

The products of O-methylation, O-methylation along with hydroxylation at C-3′ and C-4′, reduction of the carbonyl group, reduction of the carbonyl group along with hydroxylation at C-5, and dehydrogenation of C-2 and C-3 were obtained.

Most of the products (with the exception of the O-methylation one) have stronger antioxidant properties than the initial substrate.