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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/66714
Title: 
Cromatografia em contra-corrente de gotejamento na separação de substâncias fenólicas de Neuropogon aurantiaco-ater
Other Titles: 
Droplet counter-current chromatography in the separation of phenolic substances from Neuropogon aurantiaco-ater
Author(s): 
Institution: 
Universidade Estadual Paulista (UNESP)
ISSN: 
1516-0572
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.
Issue Date: 
1-Dec-2001
Citation: 
Revista Brasileira de Plantas Medicinais, v. 4, n. 1, p. 47-50, 2001.
Time Duration: 
47-50
Keywords: 
  • 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
Source: 
http://www.ibb.unesp.br/Home/Departamentos/Botanica/RBPM-RevistaBrasileiradePlantasMedicinais/artigo_6_v4_%20n1.pdf
URI: 
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/66714
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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