| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000412325 |
| ISSN: | 0001-3765 |
| Authors: | Carneiro, Nargella S1 Alves, Cassia C.F1 Alves, Jose M1 Egea, Mariana B1 Martins, Carlos H.G2 Silva, Thayna S2 Bretanha, Lizandra C3 Balleste, Maira P3 Micke, Gustavo A3 Silveira, Edurdo V3 Miranda, Mayker L.D4 |
| Institutions: | 1Instituto Federal de Ciencia e Tecnologia Goiano, Rio Verde, Goias. Brasil 2Universidade de Franca, Nucleo de Pesquisas em Ciencias Exatas e Tecnologicas, Franca, Sao Paulo. Brasil 3Universidade Federal de Santa Catarina, Florianopolis, Santa Catarina. Brasil 4Instituto Federal de Educacao, Ciencia e Tecnologia do Sul de Minas Gerais, Pouso Alegre, Minas Gerais. Brasil |
| Year: | 2017 |
| Season: | Sep |
| Volumen: | 89 |
| Number: | 3 |
| Pages: | 1907-1916 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | Many essential oils (EOs) of different plant species possess interesting antimicrobial effects on buccal bacteria and antioxidant properties. Eugenia klotzschiana Berg (pêra-do-cerrado, in Portuguese) is a species of Myrtaceae with restricted distribution in the Cerrado. The essential oils were extracted through the hydrodistillation technique using a modified Clevenger apparatus (2 hours) and chemically characterized by GC-MS. The major compounds were α-copaene (10.6 %) found in oil from leaves in natura, β-bisabolene (17.4 %) in the essential oil from dry leaves and α-(E)-bergamotene (29.9 %) in oil from flowers. The antioxidant activity of essential oils showed similarities in both methods under analysis (DPPH and ABTS˙+) and the results suggested moderate to high antioxidant activity. The antibacterial activity was evaluated by determining minimum inhibitory concentrations (MICs), using the microdilution method. MIC values below 400 µg/mL were obtained against Streptococcus salivarius (200 µg/mL), S. mutans (50 µg/mL), S. mitis (200 µg/mL) and Prevotella nigrescens (50 µg/mL). This is the first report of the chemical composition and antibacterial and antioxidant activities of the essential oils of E. klotzschiana. These results suggest that E. klotzschiana, a Brazilian plant, provide initial evidence of a new and alternative source of substances with medicinal interest |
| Disciplines: | Biología, Química |
| Keyword: | Angiospermas, Fitoquímica, Aceites esenciales, Sesquiterpenos, Actividad antibacteriana, Actividad antioxidante, Eugenia klotzschiana, Myrtaceae |
| Keyword: | Biology, Chemistry, Angiosperms, Phytochemistry, Essential oils, Sesquiterpenes, Antibacterial activity, Antioxidant activity, Eugenia klotzschiana, Myrtaceae |
| Full text: | Texto completo (Ver HTML) |
