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TitleAntibacterial potential of northeastern Portugal wild plant extracts and respective phenolic compounds
Author(s)Pinho, Eva
Ferreira, Isabel C. F. R.
Barros, Lillian
Carvalho, Ana Maria
Soares, Graça M. B.
Henriques, Mariana
Issue date2014
PublisherHindawi Publishing Corporation
JournalBiomed Research International
CitationPinho, Eva; Ferreira, I.C.F.R.; Barros, L.; Carvalho, A.M.; Soares, G.M.B.; Henriques, M. Antibacterial potential of northeastern Portugal wild plant extracts and respective phenolic compounds BioMed Research International 2014(814590) 1-8, 2014.
Abstract(s)The present work aims to assess the antibacterial potential of phenolic extracts, recovered from plants obtained on the North East of Portugal, and of their phenolic compounds (ellagic, caffeic, and gallic acids, quercetin, kaempferol, and rutin), against bacteria commonly found on skin infections. The disk diffusion and the susceptibility assays were used to identify the most active extracts and phenolic compounds. The effect of selected phenolic compounds on animal cells was assessed by determination of cellular metabolic activity. Gallic acid had a higher activity, against gram-positive (S. epidermidis and S. aureus) and gram-negative bacteria (K. pneumoniae) at lower concentrations, than the other compounds. The caffeic acid, also, showed good antibacterial activity against the 3 bacteria used. The gallic acid was effective against the 3 bacteria without causing harm to the animal cells. Gallic and caffeic acid showed a promising applicability as antibacterial agents for the treatment of infected wounds.
Publisher version
AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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