RP HPLC determination of some uncommon anthocyanins

Authors

  • Victor I. Deineka Dr.Sci. (Chemistry), professor, Belgorod National Research University, Belgorod, E-mail: deineka@bsu.edu.ru
  • Ngoc Anh Vu Thi student, Belgorod National Research University. Email: vuanh0000@gmail.com
  • Ludmila A. Deineka Ph.D. (Chemistry) Belgorod National Research University, Belgorod, E-mail: deineka@bsu.edu.ru

Keywords:

Reversed-phase HPLC, uncommon anthocyanins, 7-OH methylation; 5-OH methylation; regularities of retention alteration, electronic spectra.

Abstract

Anthocyanins of Catharanthus roseus petals were found to be composed of pairs (3-galactosides
and 3-rhamnosylgalactosides) mainly of 7-methylated anthocyanidins of “dephinidin series”
(7-methyldelphinidin, 7-methylpetunidin and hirsutidin); though the same derivatives of “cyanidin series” are
present in low concentrations. Flowers of Caesalpinia pulcherrima contain two 3-glucosides: of cyanidin and
5-methylcyanidin. The migration of CH3-radical from 3’-OH group to 7-OH position results in increase of
retention, while for the migration to 5-OH group a decrease of retention was observed. Different position of
ring A OH-groups methylation can be predicted also by controversial shift of λmax of the solutes.

Downloads

Download data is not yet available.

References

Downloads

Published

2019-11-19

Issue

Vol. 14 No. 3 (2014): Sorbtsionnye i Khromatograficheskie Protsessy

Section

Статьи

How to Cite

RP HPLC determination of some uncommon anthocyanins. (2019). Sorbtsionnye I Khromatograficheskie Protsessy, 14(3). https://journals.vsu.ru/sorpchrom/article/view/1488

Most read articles by the same author(s)

1 2 > >>