African Journal of
Biochemistry Research

  • Abbreviation: Afr. J. Biochem. Res.
  • Language: English
  • ISSN: 1996-0778
  • DOI: 10.5897/AJBR
  • Start Year: 2007
  • Published Articles: 425

Full Length Research Paper

Analysis of phenolic compounds in Ugandan sweet potato varieties (NSP, SPK AND TZ)

Agnes M. Nandutu1, Mike Clifford2* and Nazlin K. Howell3
  1Makerere University, Science Faculty, Biochemistry Department, P. O. Box, 7062 Kampala, Uganda. 2& 3 University of Surrey, School of Biomedical and Molecular Sciences, Guildford, Surrey GU2 7XH, UK.
Email: [email protected]

  •  Accepted: 17 July 2007
  •  Published: 31 August 2007





Sweet potato varietiesNsp, Tz and Spk obtained from Uganda were used in this study. Several phenolic compounds were identified on the basis of their mass spectra in full scan mode and the pattern of their fragmentation. The major compounds found were caffeoylquinic acid, dicaffeoylquinic acid, coumaroylquinic acid, feruloylquinic acid and caffeoylferuloylquinic acids.This is the first time that caffeoylferuloylquinic isomers have been identified in sweet potato samples.


Key words: Sweet potato, phenolic compounds, chlorogenic acids.