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dc.typeArtigo de periódicopt_BR
dc.titleDetermination Of Polar Compounds By Tlc-fid In Refined And Partially Hidrogenated Soja Heated Oils [determinación De Compuestos Polares Por Tlc-fid En Aceites Refinado Y Semi-hidrogenado De Soja Sometidos A Calentamiento Prolongado]pt_BR
dc.contributor.authorCruzian J.L.pt_BR
dc.contributor.authorInhamuns A.J.pt_BR
dc.contributor.authorBarrera-Arellano D.pt_BR
unicamp.authorCruzian, J.L., Lab. Óleos e Gorduras, FEA/UNICAMP, Caixa Postal 6091, Campinas, S. P. 13.081-970, Brazilpt_BR
unicamp.authorInhamuns, A.J., Lab. Óleos e Gorduras, FEA/UNICAMP, Caixa Postal 6091, Campinas, S. P. 13.081-970, Brazilpt_BR
unicamp.authorBarrera-Arellano, D., Lab. Óleos e Gorduras, FEA/UNICAMP, Caixa Postal 6091, Campinas, S. P. 13.081-970, Brazilpt_BR
dc.description.abstractThe thermal degradation of oils and fats leads to the formation of polar compounds, which is the reason why their determination is adopted for the quality control of the oil and fat used in frying. Samples of refined and partially hydrogenated soybean oil were heated for 30 and 60 hours respectively, and the polar compounds content were determined using the IUPAC-AOAC official method and TLC-FID. The samples of oil and the fractions separated on the column were applied to the chromarods and developed in petroleum ether: diethyl ether (93:7 v/v). The determination of polar compounds by IUPAC method and by TLC-FID presented similar results (P-value≪0,001), although when the content was greater than 16% the second method gave higher values. The results showed that the state of degradation of oils and fats as measured for the quantity of polar compounds can be determined alternatively by TLC-FID, presenting a significant reduction in time, hand work and solvent volume.en
dc.relation.ispartofGrasas y Aceitespt_BR
dc.identifier.citationGrasas Y Aceites. , v. 48, n. 3, p. 148 - 153, 1997.pt_BR
dc.description.provenanceMade available in DSpace on 2015-06-30T14:49:39Z (GMT). No. of bitstreams: 1 2-s2.0-0040601226.pdf: 1460218 bytes, checksum: cc41d5a1663e5bd2705cd63befa9be3d (MD5) Previous issue date: 1997en
dc.description.provenanceMade available in DSpace on 2015-11-26T15:03:30Z (GMT). No. of bitstreams: 2 2-s2.0-0040601226.pdf: 1460218 bytes, checksum: cc41d5a1663e5bd2705cd63befa9be3d (MD5) 2-s2.0-0040601226.pdf.txt: 24219 bytes, checksum: 0d2f81eb832103bfd3aaa778e582ae10 (MD5) Previous issue date: 1997en
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