Oxidation of Flavanones to Flavones with Flower Extracts of Antirrhinum majus (Snapdragon)
Open Access
- 1 October 1981
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung C
- Vol. 36 (9-10) , 737-741
- https://doi.org/10.1515/znc-1981-9-1008
Abstract
Enzyme preparations from flowers of Antirrhinum majus catalysed the oxidation of naringenin to apigenin and of eriodictyol to luteolin. Enzyme activity was found to be localized in the microsomal fraction. The reaction required NADPH as cofactor and had a pH optimum of about 7.0. The NADPH-dependent microsomal enzyme activity was also present in flower extracts of other flavone-producing plants, whereas flower extracts of plants which lack flavones were found to lack also this enzyme activity.Keywords
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