Evaluation of seasonal changes in chemical composition and antibacterial activity of Elyonurus muticus (sprengel) O. Kuntze (Gramineae)

Química Nova

Crispim, Sandra M. A.¹  Oliveira, Luis G. L.¹  Tiviroli, Soraia C.¹  Fedel, Lis E. S.¹  Peres, Marize T. L. P.¹  Batista, Ana L.¹  Rodrigues, Janaína P.¹  Universidade Estadual de Campinas, Campinas, Brasil¹  Empresa Brasileira de Pesquisa Agropecuária, Corumbá, Brasil¹  Universidade Federal de Mato Grosso do Sul, Campo Grande, Brasil¹  Smania, Elza F. A.¹  Pantaroto, Suzan¹  Hess, Sônia C.¹  Smania Junior, Artur¹  Universidade Federal de Santa Catarina, Florianópolis, Brasil¹  Santos, Cícero W. C.¹  Flach, Adriana¹ 

关键词: Elyonurus;    essential oil;    antibacterial activity.;   

DOI  :  10.1590/S0100-40422007000200025

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

Aerial parts of Elyonurus muticus were collected in the four seasons of the year in the Brazilian Pantanal and subjected to extractrion with cold ethanol and to hydrodistillation. Sesquiterpenoids (E)-caryophyllene, bicyclogermacrene, spathulenol and caryophyllene oxide were the main components identified in the essential oils and their concentrations varied according to the plant collection period. The essential oils and the ethanolic crude extracts were active against Bacillus cereus MIP 96016, Pseudomonas aeruginosa ATCC 27853 and Staphylococcus aureus ATCC 25923 and were not active against Escherichia coli ATCC 25922. The antibacterial activities varied according to the plant collection period.

【 授权许可】

Unknown