Antibacterial potential assessment of Nalca (Gunnera tinctoriaMol.) ethanolic extracts

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datacite.alternateIdentifier.citationNATURAL PRODUCT RESEARCH,Vol.,,2020
datacite.alternateIdentifier.doi10.1080/14786419.2020.1777118
datacite.creatorVelasquez, Patricia
datacite.creatorRiquelme, Karla
datacite.creatorLeyton, Felipe
datacite.creatorGiordano, Ady
datacite.creatorGomez, Miguel
datacite.creatorMontenegro, Gloria
datacite.date2020
datacite.subject.englishGunnera tinctoriaMol
datacite.subject.englishantimicrobial activity
datacite.subject.englishagar diffusion
datacite.subject.englishminimum inhibitory concentration
datacite.subject.englishbioactive extracts
datacite.titleAntibacterial potential assessment of Nalca (Gunnera tinctoriaMol.) ethanolic extracts
dc.date.accessioned2021-04-30T17:07:22Z
dc.date.available2021-04-30T17:07:22Z
dc.description.abstractNalca is an edible rhubarb-type plant from the southern of Chile; with studies focussing on petiole chemical and biological properties. This work evaluated for the first time the antibacterial capacities of three organs of nalca againstEscherichia coli,Staphylococcus aureusandPseudomonas aeruginosa. Petiole (P), root (R) and flower (F) ethanolic extracts at three different concentrations (25, 50, 100 mg/mL) were evaluated by means of agar diffusion assay and MIC. The result showed that antibacterial activities are bacteria and concentration dependent, with root having the highest antimicrobial activity of the organs plant studied. Compared to commercial antibiotics, nalca extracts show promising control overPs. aeruginosa. The main polyphenolics of the extracts were identified by UPLC-MS/MS, observing for the first time caffeic, coumaric and gallic acids presence in all samples, with quercetin and rutin determined in petiole and flower extracts only. Our results contribute to better understanding of nalca attributes as potential source of antibacterial compounds to be used in nutraceutical, cosmetic and food industry.
dc.identifier.urihttp://repositoriodigital.uct.cl/handle/10925/4149
dc.language.isoen
dc.publisherTAYLOR & FRANCIS LTD
dc.sourceNATURAL PRODUCT RESEARCH
uct.catalogadorWOS
uct.indizacionSCI
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