Photoprotective property and cytotoxicity of polar extracts of three species of Maytenus native to the Southwest of Bahia.
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2020
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Resumo
Maytenus acanthophylla, M. rigida and M. truncata (Celastraceae) are used in the traditional medicine of
Chapada Diamantina and Southwest Bahia, Brazil. The infusion and decocto of its leaves are used in the
treatment of inflammation and gastric disorders. In this context, it is important to identify chemical and
biological properties that reinforce this traditional use. The objective of this study was to determine the total
phenolic and flavonoid content by the Folin-Ciocalteau method, the photoprotective property by in vitro
spectrophotometric method and the acute toxicity by the mortality index of Artemia salina, of polar extracts
of these three Maytenus species. It was observed that the species have similar levels of total phenolic and
flavonoid. The presence of compounds containing chromophore groups, which absorb radiation in the UV
region between 290 and 320 nm, gives the extracts promising sun protection factors. In the tests with A.
salina, the median lethal concentration values were high (≥1000.0 μg/mL) indicating the low toxicity of these
extracts. The results contribute to the knowledge of the polar extracts of the three Maytenus species of the
Southwest of Bahia, to the validation of the therapeutic properties of these plants and opens perspectives of
new studies of photoprotection.
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Maytenus spp, Photoprotection
Citação
PEREIRA, R. dos S. et al. Photoprotective property and cytotoxicity of polar extracts of three species of Maytenus native to the Southwest of Bahia. Scientia Plena, v. 16, 2020. Disponível em: <https://www.scientiaplena.org.br/sp/article/view/5346>. Acesso em: 11 out. 2022.