African Journal of Chemistry

African Journal of Chemistry ISSN 4391-3199 Vol. 8 (1), pp. 001-008, January, 2021. © International Scholars Journals

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.

Accepted 12 October, 2020

Abstract

Sweet potato varieties: Nsp, 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