Fast Screening And Secure Confirmation Of Milk Powder Adulteration With Maltodextrin Via Electrospray Ionization-mass Spectrometry [esi(+)-ms] And Selective Enzymatic Hydrolysis.

dc.creatorSanvido, Gustavo B
dc.creatorGarcia, Jerusa S
dc.creatorCorilo, Yuri E
dc.creatorVaz, Boniek G
dc.creatorZacca, Jorge J
dc.creatorCosso, Ricardo G
dc.creatorEberlin, Marcos N
dc.creatorPeter, Martin G
dc.date2010-Sep
dc.date2015-11-27T13:18:09Z
dc.date2015-11-27T13:18:09Z
dc.date.accessioned2018-03-29T01:11:26Z
dc.date.available2018-03-29T01:11:26Z
dc.identifierJournal Of Agricultural And Food Chemistry. v. 58, n. 17, p. 9407-12, 2010-Sep.
dc.identifier1520-5118
dc.identifier10.1021/jf1014445
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/20695638
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/198992
dc.identifier20695638
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1299225
dc.descriptionDirect-infusion electrospray ionization-mass spectrometry [ESI(+)-MS] of several milk powder samples, confiscated by the Brazilian Federal Police, showed ions accounting for sodiated and potassiated molecules of disaccharides (m/z 365 and 381) as well as trisaccharides (m/z 527 and 543), whereas monosaccharide ions were not detected. The trisaccharide ions were not detected in samples of genuine milk powder, raising the suspicion that their presence indicates adulteration by the addition of maltodextrin. In control samples, maltose and maltotriose were hydrolyzed by alpha-glucosidase and not beta-galactosidase, whereas lactose was resistant to alpha-glucosidase but was hydrolyzed with beta-galactosidase. Samples suspected of being adulterated behaved in the same fashion, confirming the presence of maltose and maltotriose or maltodextrin. Direct-infusion ESI-MS is shown therefore to provide rapid screening of milk powder for adulteration with maltodextrin, whereas its combination with selective enzymatic hydrolysis provides highly reliable confirmation for unambiguous results.
dc.description58
dc.description9407-12
dc.languageeng
dc.relationJournal Of Agricultural And Food Chemistry
dc.relationJ. Agric. Food Chem.
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectAnimals
dc.subjectHydrolysis
dc.subjectMilk
dc.subjectPolysaccharides
dc.subjectSpectrometry, Mass, Electrospray Ionization
dc.subjectAlpha-glucosidases
dc.titleFast Screening And Secure Confirmation Of Milk Powder Adulteration With Maltodextrin Via Electrospray Ionization-mass Spectrometry [esi(+)-ms] And Selective Enzymatic Hydrolysis.
dc.typeArtículos de revistas


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