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dc.contributor.authorMertins, Omarpt_BR
dc.contributor.authorSebben, Marcelopt_BR
dc.contributor.authorSchneider, Paulo Henriquept_BR
dc.contributor.authorPohlmann, Adriana Raffinpt_BR
dc.contributor.authorSilveira, Nádya Pesce dapt_BR
dc.date.accessioned2013-07-02T01:43:15Zpt_BR
dc.date.issued2008pt_BR
dc.identifier.issn0100-4042pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/72870pt_BR
dc.description.abstractA strategy is proposed to evaluate the purity of phosphatidylcholine from soybean lecithin, obtained by extraction or column chromatography, using the integrals ratio of 1H NMR spectra. Integrals of methylene signals, around 1.3 and 1.6 ppm, are added and divided by the integral of the choline methyl groups, around 3.3 ppm. Before purification, a ratio of 19.68¡ ±1.37 was determined. Using extraction, a ratio of 10.70¡ ±0.61 was found, while from column chromatography, a value of 2.99¡ ±0.25 was detected. 31P NMR of standard phosphatidylcholine showed signals at -0.2 and -0.9 ppm, whereas the purified one showed a single signal at -0.9 ppm.en
dc.format.mimetypeapplication/pdf
dc.language.isoporpt_BR
dc.relation.ispartofQuímica nova. São Paulo. Vol. 31, n. 7 (2008), p. 1856-1859pt_BR
dc.rightsOpen Accessen
dc.subjectNMRen
dc.subjectRessonância magnética nuclearpt_BR
dc.subjectPhosphatidylcholineen
dc.subjectLecitina de sojapt_BR
dc.subjectPurity determinationen
dc.titleCaracterização da pureza de fosfatidilcolina da soja através de RMN de 1H e de 31Ppt_BR
dc.title.alternativeCharacterization of soybean phosphatidylcholine purity by 1h and 31p nmr en
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb000668477pt_BR
dc.type.originNacionalpt_BR


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