10.6084/m9.figshare.1252136.v3 Chinedu P. Anokwuru Chinedu P. Anokwuru Annamaria Sinisi Annamaria Sinisi Amidou Samie Amidou Samie Orazio Taglialatela-Scafati Orazio Taglialatela-Scafati Antibacterial and antioxidant constituents of <i>Acalypha wilkesiana</i> Taylor & Francis Group 2015 Acalypha wilkesiana corilagin exhibit antioxidant activity dpph compound quadrangularic acid M ic metabolite 2015-06-16 15:01:38 Journal contribution https://tandf.figshare.com/articles/journal_contribution/Antibacterial_and_antioxidant_constituents_of_i_Acalypha_wilkesiana_i_/1252136 <div><p>This study was aimed at characterising the secondary metabolites responsible for antibacterial and antioxidant activities of <i>Acalypha wilkesiana</i>. Purification of the defatted methanol leaves extract was guided by the DPPH free radical scavenging assay as well as by evaluation of the antibacterial activity against four bacterial strains. As a result, geraniin, corilagin, quadrangularic acid M and shikimic acid were purified and isolated. Shikimic acid, reported for the first time from this plant, proved to be the major metabolite of the extract. All the four isolated compounds showed bactericidal activity against extended spectrum beta-lactamase-producing <i>Klebsiella pneumoniae</i> (700603), while corilagin was the single compound to exhibit antioxidant activity (IC<sub>50</sub> 53 μg/mL).</p></div>