Cromatografia em contra-corrente de gotejamento na separação de substâncias fenólicas de Neuropogon aurantiaco-ater
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Data
2001-12-01
Autores
Pozzebon, J. M. [UNESP]
Vilegas, Wagner [UNESP]
Honda, N. K. [UNESP]
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Resumo
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.
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Palavras-chave
Chromatography, Countercurrent distribution, Lichens, Phenols, chloroform, methanol, natural product, phenol derivative, protocetratic acid, unclassified drug, usnic acid, water, counter current chromatography, extraction, fractionation, high performance liquid chromatography, lichens, Neuropogon aurantiaco ater, nonhuman, nuclear magnetic resonance, thin layer chromatography
Como citar
Revista Brasileira de Plantas Medicinais, v. 4, n. 1, p. 47-50, 2001.