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V.3 n.3 (2022)
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Artigos Originais
AVALIAÇÃO DO FATOR DE PROTEÇÃO SOLAR (FPS) in vitro DO EXTRATO ETANÓLICO DAS FOLHAS DE Psidium guajava (MYRTACEAE)
Autores
Edilene de Souza Santos Gomes
Unidade de Ensino Superior de Feira de Santana (UNEF)
Jackson Santos Sampaio
Unidade de Ensino Superior de Feira de Santana (UNEF)
Altaisa Lima dos Santos Silva
Unidade de Ensino Superior de Feira de Santana (UNEF)
Sônia Carine Cova Costa
Departamento de Saúde, Universidade Estadual de Feira Santana (UEFS)
Isabella Mary Alves Reis
Unidade de Ensino Superior de Feira de Santana (UNEF)
Palavras-chave:
Fotoproteção, Compostos fenólicos, Radiação Ultravioleta, Antioxidantes
Resumo
Introdução: A radiação ultravioleta gera reações fotoquímicas na pele. Exposições a essa radiação levam a efeitos indesejados, desde uma simples queimadura na pele até problemas mais graves como o câncer de pele. A busca de substâncias, em especial as contidas em extratos vegetais, com potencial ação fotoprotetora é uma importante ferramenta no combate aos danos das radiações UVA/UVB. Objetivo: o presente trabalho tem como objetivo avaliar o Fator de Proteção Solar (FPS) in vitro do extrato etanólico das folhas de Psidium guajava. Metodologia: o material vegetal foi seco em estufa a 40ºC, moído e macerado em uma solução de álcool etílico P.A. por 72 horas, o filtrado obtido teve o volume do solvente reduzido. O FPS foi determinado pelo método in vitro desenvolvido por Mansur e colaboradores (1986). Foram utilizadas as concentrações 25, 50, 100, 200, 300, 400 e 500 μg/mL de extrato etanólico das folhas de P. guajava e do padrão Benzofenona. A leitura das amostras foi feita em aparelho espectrofotômetro. O álcool etílico P.A. foi utilizado como branco e as leituras de absorbâncias foram registradas na faixa do comprimento de onda UVB em intervalos de 5 nm. Resultados: os resultados demonstram que na concentração de 500 μg/mL o FPS encontrado foi 29,79 ± 0,001. Conclusão: Diante dos valores encontrados nas concentrações analisadas no extrato etanólico de P. guajava, sugere-se o uso da espécie no desenvolvimento de formulações fotoprotetoras.
Como Citar
de Souza Santos Gomes, E. ., Santos Sampaio, J. ., Lima dos Santos Silva, A. ., Cova Costa, S. C., & Alves Reis, I. M. (2022). AVALIAÇÃO DO FATOR DE PROTEÇÃO SOLAR (FPS) in vitro DO EXTRATO ETANÓLICO DAS FOLHAS DE Psidium guajava (MYRTACEAE). Revista Multidisciplinar Em Saúde , 1–8. https://doi.org/10.51161/rems/3390
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