Identificação de pigmentos naturais utilizando-se cromatografia em papel
dc.creator | Okumura, Fabiano | |
dc.creator | Soares, Márlon Herbert Flora Barbosa | |
dc.creator | Cavalheiro, Éder Tadeu Gomes | |
dc.date.accessioned | 2018-09-05T11:48:06Z | |
dc.date.available | 2018-09-05T11:48:06Z | |
dc.date.issued | 2002 | |
dc.description.abstract | The 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.citation | OKUMURA, 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.issn | 0100-4042 | |
dc.identifier.issn | 1678-7064 | |
dc.identifier.uri | http://repositorio.bc.ufg.br/handle/ri/15840 | |
dc.language.iso | por | pt_BR |
dc.publisher.country | Brasil | pt_BR |
dc.publisher.department | Instituto de Química - IQ (RG) | pt_BR |
dc.rights | Acesso Aberto | pt_BR |
dc.subject | Paper chromatography teaching | pt_BR |
dc.subject | Anthocyanins | pt_BR |
dc.subject | Chemical education | pt_BR |
dc.title | Identificação de pigmentos naturais utilizando-se cromatografia em papel | pt_BR |
dc.title.alternative | Identification of natural pigments from vegetal species using paper chromatography | pt_BR |
dc.type | Artigo | pt_BR |
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