The phenolic acids of some species of the oenothera L. Genus

Abstract

The occurence and approximative quantitative proportions of the phenolic acids in four specics of the Oenothera I . genus was determined by the method of TLC and HPLC. In nil species of Oenothera L. genus the permanent occurrence of acids: 2 hydroxy 4-metoxyben/oic. salicylic, fern lie, syringic. vanillic, p-coumaric. p-hydroxybcnzoic. p-hydroxyphcnylacctic, γ-rczorcil, gentysic, pruloeatechuie, caffeie and gallic has been confirmed. Whereas the other phenolic acids: o-coumaric. o-hy- droxyphenylacetic and pirocatechuic were found in some species ol'the Oenothera L. genus only.