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Influence of Seasonal Variation on the Chemical Composition and Biological Activities of Essential Oil from Eugenia pohliana DC Leaves

2022; Wiley; Volume: 19; Issue: 9 Linguagem: Inglês

10.1002/cbdv.202200034

1612-1880

Wêndeo Kennedy Costa, Alisson Macário de Oliveira, Izabelly Bianca da Silva Santos, Valquíria Bruna Guimarães Silva, Júlio César Ribeiro de Oliveira Farias de Aguiar, Daniela Maria do Amaral Ferraz Navarro, Maria Tereza dos Santos Correia, Márcia Vanusa da Silva,

Phytochemistry and Bioactive Compounds

The purpose of this study was to analyses the influence of seasonal variation on the chemical composition and antimicrobial, antioxidant and cytotoxicity activities of the essential oil (EO) extracted from the leaves of Eugenia pohliana. Chemical characterization of the samples - by gas chromatography-mass spectrometry - found 35 and 38 components for summer and winter, respectively, of the EO from E. pohliana leaves, totaling 47 different compounds. Analysis of antioxidant capacity (DPPH, ABTS and TAC) revealed that the summer EO showed greater free radical scavenging capacity than the winter. Similarly, the summer EO exhibited superior antimicrobial potential (MIC=128-512 μg/mL and MMC=128-1024 μg/mL, compared to the winter EO (128-2048 μg/mL and 256-2048 μg/mL, respectively). Results showed that both oils had a low potential to cause hemolysis. This study provides new scientific evidence on the influence of seasonality on the pharmacological properties of E. pohliana leaves and its potential for the development of herbal medicines.