Artículos de revistas
Chemical Composition, Seasonal Variation and Evaluation of Antimicrobial Activity of Essential Oils of Talauma ovata A. St. Hil. (Magnoliaceae)
Registro en:
JOURNAL OF ESSENTIAL OIL RESEARCH, v.20, n.6, p.565-569, 2008
1041-2905
Autor
STEFANELLO, Maria Elida A.
SALVADOR, Marcos J.
ITO, Izabel Y.
WISNIEWSKI JR., Alberto
SIMIONATTO, Edesio L.
MELLO-SILVA, Renato de
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) The essential oils isolated by hydrodistillation from trunk bark and leaves of Talauma ovata A. St. Hil. (Magnoliaceae), collected in four seasons, were analyzed by capillary GC and GC/MS. Altogether 52 components were identified, The oils were characterized by predominance of cyclic sesquiterpenes. The main components were linalool, trans-beta-guaiene, germaerene D, germacrene B, spathulenol, caryophyllene oxide, viridiflorol and alpha-endesmol. The content of individual components was variable during the year. All oils were screened against several strains of bacteria and yeasts, using the agar well-diffusion technique. The antimicrobial activity of oils showed strong dependence with the season. Significant activity was found for oils obtained in the spring and summer. 20 6 565 569 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)