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Keywords:

  • HPLC-MS;
  • anthraquinones;
  • aloenin;
  • aloin;
  • ethnoveterinary compounds;
  • Aloe secundiflora

Abstract

The phytochemical profile of Aloe secundiflora (Aloeaceae) and the identity of eight major compounds, including the two main constituents, have been determined from the leaf exudate of this ethnoveterinary used species from Kenya and Tanzania. Analytical HPLC-MS studies of the exudate have revealed that ­it comprises a mixture of phenolic compounds, mainly anthrones (aloenin, aloenin B, isobarbaloin, barbaloin and other aloin derivatives), chromones and phenylpyrones with a low content of polysaccharides and aliphatic compounds. The high percentage of anthrones in the exudate could provide a first line of evidence for the use of the plant in ethnoveterinary practices. Copyright © 2003 John Wiley & Sons, Ltd.