Flavonoides glicosilados de Erythroxylum pulchrum a. st.-hil. (Erythroxylaceae)
AUTOR(ES)
Albuquerque, Camila Holanda de, Tavares, Josean Fechine, Oliveira, Steno Lacerda de, Silva, Tainá Souza, Gonçalves, Gregório Fernandes, Costa, Vicente Carlos de Oliveira, Agra, Maria de Fátima, Pessôa, Hilzeth de Luna Freire, Silva, Marcelo Sobral da
FONTE
Quím. Nova
DATA DE PUBLICAÇÃO
2014
RESUMO
The phytochemical investigation of Erythroxylum pulchrum St. Hil. (Erythroxylaceae) led to the isolation of three known flavonoid glycosides quercetin-3-O-α-L-rhaminoside, ombuin-3-ruthinoside and ombuin-3-ruthinoside-5-glucoside. These flavonoids are being described for the first time in this E. pulchrum. The structures of the compounds were determined by analysis of IR, MS and NMR data, as well as by comparison with literature data. The methanolic extract of leaves from E. pulchrum inhibited the growth of the Bacillus subtilis CCT 0516, Escherichia coli ATCC 2536, Pseudomonas aeruginosa ATCC 8027, P. aeruginosa ATCC 25619, Staphylococcus aureus ATCC 6538, S. aureus ATCC 25925, Streptococcus sanguinis ATCC 15300, S. salivarius ATCC 7073, S. mutans ATCC 25175 and Streptococcus ATCC. S. aureus ATCC 25925 was the most sensitive among the other S. sanguinis while S. salivarius proved the most resistant.
Documentos Relacionados
- Novas Neolignanas de Krameria tomentosa A. St.-Hil. (Krameriaceae)
- Novas espécies de Luxemburgia A. St.-Hil. (Ochnaceae)
- Three New Steroidal Glycoalkaloids from Solanum pseudoquina A. St.-Hil. (Solanaceae)
- Constituintes químicos de Almeidea coerulea (Nees & Mart.) A. St.-Hil. Rutaceae
- Sistema de reprodução em população natural de Chorisia speciosa A. St.-Hil. (Bombacaceae)