Identificação de pigmentos naturais utilizando-se cromatografia em papel

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dc.creatorOkumura, Fabiano
dc.creatorSoares, Márlon Herbert Flora Barbosa
dc.creatorCavalheiro, Éder Tadeu Gomes
dc.date.accessioned2018-09-05T11:48:06Z
dc.date.available2018-09-05T11:48:06Z
dc.date.issued2002
dc.description.abstractThe use of natural dyes to demonstrate principles of paper chromatography is proposed. Extraction of the coloring compounds were performed in order to obtain the aglycone form of the anthocyanins present in the crude extracts. Separations were carried out on chromatographic paper with BAW (butanol/acetic acid/water) as mobile phase and the results compared with literature data. The crude extracts were obtained from Tibouchina granulosa, Rododhendron simsii, Impatiens walleriana flowers which are wildely found in Brazil and Phaseolus vulgaris L. grains skin which is the principal ingredient of the world famous “feijoada”. Such species were chosen in order to attract the students attention since they are present in their quotidian, in agreement with the new proposals for Brazilian education.pt_BR
dc.identifier.citationOKUMURA, Fabiano; SOARES, Márlon Herbert Flora Barbosa; CAVALHEIRO, Éder Tadeu Gomes. Identificação de pigmentos naturais utilizando-se cromatografia em papel. Química Nova, São Paulo, v. 25, n. 4, p. 680-683, 2002.pt_BR
dc.identifier.issn0100-4042
dc.identifier.issn1678-7064
dc.identifier.urihttp://repositorio.bc.ufg.br/handle/ri/15840
dc.language.isoporpt_BR
dc.publisher.countryBrasilpt_BR
dc.publisher.departmentInstituto de Química - IQ (RG)pt_BR
dc.rightsAcesso Abertopt_BR
dc.subjectPaper chromatography teachingpt_BR
dc.subjectAnthocyaninspt_BR
dc.subjectChemical educationpt_BR
dc.titleIdentificação de pigmentos naturais utilizando-se cromatografia em papelpt_BR
dc.title.alternativeIdentification of natural pigments from vegetal species using paper chromatographypt_BR
dc.typeArtigopt_BR

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