Antibacterial potential assessment of Nalca (<i>Gunnera tinctoria</i>Mol.) ethanolic extracts

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dc.contributor.authorVelasquez, Patricia
dc.contributor.authorRiquelme, Karla
dc.contributor.authorLeyton, Felipe
dc.contributor.authorGiordano, Ady
dc.contributor.authorGomez, Miguel
dc.contributor.authorMontenegro, Gloria
dc.date.accessioned2025-01-20T23:56:17Z
dc.date.available2025-01-20T23:56:17Z
dc.date.issued2021
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.fuente.origenWOS
dc.identifier.doi10.1080/14786419.2020.1777118
dc.identifier.eissn1478-6427
dc.identifier.issn1478-6419
dc.identifier.urihttps://doi.org/10.1080/14786419.2020.1777118
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95144
dc.identifier.wosidWOS:000544571300001
dc.issue.numero23
dc.language.isoen
dc.pagina.final5428
dc.pagina.inicio5425
dc.revistaNatural product research
dc.rightsacceso restringido
dc.subjectGunnera tinctoriaMol
dc.subjectantimicrobial activity
dc.subjectagar diffusion
dc.subjectminimum inhibitory concentration
dc.subjectbioactive extracts
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titleAntibacterial potential assessment of Nalca (<i>Gunnera tinctoria</i>Mol.) ethanolic extracts
dc.typeartículo
dc.volumen35
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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