Artículos de revistas
Cromatografia em contra-corrente de gotejamento na separação de substâncias fenólicas de Neuropogon aurantiaco-ater
Date
2001-12-01Registration in:
Revista Brasileira de Plantas Medicinais, v. 4, n. 1, p. 47-50, 2001.
1516-0572
2-s2.0-18244431466
2-s2.0-18244431466.pdf
0000-0003-3032-2556
Author
Universidade Estadual Paulista (Unesp)
Institutions
Abstract
This work reports the separation of phenolic compounds present in the metabolic extract of the lichen Neuropogon aurantiaco-ater (Usniaceae). The crude extract was fractionated by droplet counter-current chromatography using a solvent mixture of high polarity (chloroform:methanol:water at 43:37:20, in ascending mode). The separation resulted in the isolation of usnic and protocetratic acid, which were identified by TLC, HPLC, and NMR tests.