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dc.contributor.authorBotros, Lucy L.*
dc.contributor.authorJablonski, Joseph*
dc.contributor.authorChang, Claire*
dc.contributor.authorBergana, Marti Mamula*
dc.contributor.authorWehling, Paul*
dc.contributor.authorHarnly, James M.*
dc.contributor.authorDowney, Gerard*
dc.contributor.authorHarrington, Peter*
dc.contributor.authorPotts, Alan R.*
dc.contributor.authorMoore, Jeffrey C.*
dc.date.accessioned2013-12-12T12:34:24Z
dc.date.available2014-10-01T16:00:04Z
dc.date.issued16/09/2013
dc.identifier.citationExploring Authentic Skim and Nonfat Dry Milk Powder Variance for the Development of Nontargeted Adulterant Detection Methods Using Near-Infrared Spectroscopy and Chemometrics. Lucy L. Botros, Joseph Jablonski, Claire Chang, Marti Mamula Bergana, Paul Wehling, James M. Harnly, Gerard Downey, Peter Harrington, Alan R. Potts, and Jeffrey C. Moore. Journal of Agricultural and Food Chemistry, 2013, 61 (41), 9810-9818. DOI: 10.1021/jf4023433en_GB
dc.identifier.issn0021-8561
dc.identifier.urihttp://hdl.handle.net/11019/477
dc.descriptionThis document provided is the Accepted Manuscript version of a Published Work that appeared in final form in Journal of Agricultural and Food Chemistry, copyright © American Chemical Society, after peer review and technical editing by the publisher. To access the final edited and published work see http://pubs.acs.org/doi/abs/10.1021/jf4023433
dc.descriptionpeer-revieweden_GB
dc.description.abstractA multinational collaborative team led by the U.S. Pharmacopeial Convention is currently investigating the potential of near-infrared (NIR) spectroscopy for nontargeted detection of adulterants in skim and nonfat dry milk powder. The development of a compendial method is challenged by the range of authentic or nonadulterated milk powders available worldwide. This paper investigates the sources of variance in 41 authentic bovine skim and nonfat milk powders as detected by NIR diffuse reflectance spectroscopy and chemometrics. Exploratory analysis by principal component analysis and varimax factor rotation revealed significant variance in authentic samples and highlighted outliers from a single manufacturer. Spectral preprocessing and outlier removal methods reduced ambient and measurement sources of variance, most likely linked to changes in moisture together with sampling, preparation, and presentation factors. Results indicate that significant chemical variance exists in different skim and nonfat milk powders that will likely affect the performance of adulterant detection methods by NIR spectroscopy.en_GB
dc.language.isoenen_GB
dc.publisherAmerican Chemical Societyen_GB
dc.relation.ispartofseriesJournal of Agricultural and Food Chemistry;vol 61
dc.subjectSkim milk powderen_GB
dc.subjectNonfat dry milken_GB
dc.subjectMelamineen_GB
dc.subjectNIR spectroscopyen_GB
dc.subjectChemometricsen_GB
dc.subjectPCAen_GB
dc.subjectVarimaxen_GB
dc.subjectCompendialen_GB
dc.subjectDiffuse reflectanceen_GB
dc.subjectVarianceen_GB
dc.titleExploring Authentic Skim and Nonfat Dry Milk Powder Variance for the Development of Nontargeted Adulterant Detection Methods Using NIR Spectroscopy and Chemometricsen_GB
dc.typeArticleen_GB
dc.embargo.terms16/09/2014en_GB
dc.identifier.rmisMDDT-0103-6463
dc.identifier.doihttp://dx.doi.org/10.1021/jf4023433
refterms.dateFOA2018-01-12T07:50:40Z


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