Zur Biosynthese des Apigenins und Chrysoeriols in der Petersilie
Open Access
- 1 July 1967
- journal article
- research article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 22 (7) , 746-751
- https://doi.org/10.1515/znb-1967-0713
Abstract
The aglykon of a second flavoneglycoside present in parsley plants and fruits has been identified as Chrysoeriol (5.7.4′-trihydroxy-3′-methoxyflavone). According to its hydrolytic and spectral properties the glycoside is the 7-apiosyl-glucoside of chrysoeriol. 4.2′.4′.6′-Tetrahydroxychalcone-2′-glucoside- [β-14C] is incorporated into apigenin (5.7.4′-trihydroxyflavone) in parsley without randomization of the label. When a mixture of 5.7.4′-trihydroxyflavanone-[2-14C] with either trans-3.5.7.4′-tetrahydroxyflavanone- [T] or 3.5.7.4′-tetrahydroxyflavone- [T] was fed to two month old parsley shoots, the incorporation of the trihydroxyflavanone into apigenin or chrysoeriol was higher by a factor of 67 to 400 than that of the tetrahydroxyflavanone or tetrahydroxyflavone. These results prove that the flavones are formed by dehydrogenation of flavanones and not by dehydration of dihydroflavonols.This publication has 0 references indexed in Scilit: