dc.contributor | Carvalho, Leandro Machado de | |
dc.contributor | http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4795379U4 | |
dc.contributor | Monserrat, José María | |
dc.contributor | http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4769169H6 | |
dc.contributor | Stülp, Simone | |
dc.contributor | http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4799529Y9 | |
dc.contributor | Fighera, Michele Rechia | |
dc.contributor | http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4762398D8 | |
dc.contributor | Ieggli, Carine Viana Silva | |
dc.contributor | http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4125303A4 | |
dc.creator | Lima, Fernanda Oliveira | |
dc.date.accessioned | 2017-05-16 | |
dc.date.accessioned | 2019-05-24T19:13:02Z | |
dc.date.available | 2017-05-16 | |
dc.date.available | 2019-05-24T19:13:02Z | |
dc.date.created | 2017-05-16 | |
dc.date.issued | 2013-09-25 | |
dc.identifier | LIMA, Fernanda Oliveira. Comparative study of the bioactivity of phenolic compounds in medicinal plants. 2013. 145 f. Tese (Doutorado em Química) - Universidade Federal de Santa Maria, Santa Maria, 2013. | |
dc.identifier | http://repositorio.ufsm.br/handle/1/4268 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/2832641 | |
dc.description.abstract | Phenolic compounds are secondary metabolites, widely distributed in the plant
kingdom, which present antiinflamatory, antibacterial, antiviral, antialergical and
antitumoral activities, in addition to antioxidant activities. Even in low concentrations
compared to the oxidant substrate, the antioxidant compounds can delay or inhibit
free radical oxidation rates. Thus, this study aimed to quantitatively determine and
classify the compounds as natural antioxidants isolated and its contribution to the
antiradical activity from the chromatographic analysis (HPLC-DAD) and a systematic
study of the antiradical activity of antioxidant compounds isolated (patterns reference)
and natural (herbal extracts) using in vitro and ex vivo.bem. Furthermore, the
antioxidant species bioactivity was assessed from cells of the cortex and permeation
cell biomembranes, artificial lipid. Among the antioxidant compounds studied,
quercetrin presented protection action against free radicals on cell-based studies
(cortex cells), high in vitro and cell-based antiradical actions, and also biomembrane
permeations. These responses, when added, can confer to quercitrin higher
relevance as a antioxidant at physiological levels when compared to others
poliphenols. This work presents a systematic study on antiradical activities of isolated
antioxidant compounds (from reference standards) and natural antioxidant
compounds (medicinal plant extracts), by using in vitro and ex vivo methods. | |
dc.publisher | Universidade Federal de Santa Maria | |
dc.publisher | BR | |
dc.publisher | Química | |
dc.publisher | UFSM | |
dc.publisher | Programa de Pós-Graduação em Química | |
dc.rights | Acesso Aberto | |
dc.subject | Polifenóis | |
dc.subject | Métodos de extração e quantificação | |
dc.subject | Ervas medicinais | |
dc.subject | Polyphenol | |
dc.subject | Extraction and quantification methods | |
dc.subject | Medicinal herbs | |
dc.title | Estudo comparativo da bioatividade de compostos fenólicos em plantas medicinais | |
dc.type | Tese | |