Isolation and characterization of phenolic antioxidants from Plantago herb

Molecules. 2012 May 9;17(5):5459-66. doi: 10.3390/molecules17055459.

Abstract

Seven phenolic compounds, including a new phenylethanoid glycoside, were isolated from the ethyl acetate fraction of an aqueous ethanol extract of Plantago Herb (whole part of Plantago asiatica L.), which showed significant antioxidative activity. The new compound was characterized as 2-(3,4-dihydroxyphenyl)ethyl 3-O-β-D-allopyranosyl-6-O-caffeoyl-β-D-glucopyranoside on the basis of spectral and chemical evidence, and its antioxidant activity was comparable to that of tea catechins.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetates / chemistry
  • Antioxidants / chemistry
  • Antioxidants / isolation & purification*
  • Catechin / analogs & derivatives
  • Catechin / chemistry
  • Ethanol / chemistry
  • Glycosides / chemistry
  • Glycosides / isolation & purification*
  • Oxidation-Reduction
  • Phenols / chemistry
  • Phenols / isolation & purification*
  • Plant Extracts / chemistry*
  • Plantago / chemistry*
  • Water / chemistry

Substances

  • 2-(3,4-dihydroxyphenyl)ethyl-3-O-beta-D-allopyranosyl-6-O-caffeoyl-beta-D-glucopyranoside
  • Acetates
  • Antioxidants
  • Glycosides
  • Phenols
  • Plant Extracts
  • Water
  • Ethanol
  • ethyl acetate
  • Catechin
  • epigallocatechin gallate