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dc.contributor.authorMonago-Maraña, Olga
dc.contributor.authorEskildsen, Carl Emil Aae
dc.contributor.authorGaleano-Diaz, Teresa
dc.contributor.authorMunoz de la Pena, Arsenio
dc.contributor.authorWold, Jens Petter
dc.date.accessioned2021-01-27T14:38:02Z
dc.date.available2021-01-27T14:38:02Z
dc.date.created2020-09-23T12:14:42Z
dc.date.issued2020
dc.identifier.issn0956-7135
dc.identifier.urihttps://hdl.handle.net/11250/2725038
dc.description.abstractThis paper presents a novel strategy for determination of the illegal dye Sudan I in paprika powder. The method is based on fluorescence spectroscopy combined with second-order calibration, which was employed for the first time for this purpose. The method is non-destructive and requires no sample preparation. It was probed that Sudan I exhibited fluorescence; however, the color of paprika samples affected the signal and it was not possible to quantify this adulterant by means of univariate and first-order calibration. To model the effect of variability of color in samples, a central composite experimental design was performed with varying ASTA (American Spices Trade Association) color values and Sudan I concentrations. Different second-order algorithms were tried for quantification. The best results for calibration and validation were obtained from Unfolded-Partial Least-Squares (U-PLS) and Multi-way Partial Least-Squares (N-PLS). The level of detection ranges were 0.4 – 3 mg/g and 0.5 – 3 mg/g for U-PLS and N-PLS, respectively. This was lower than other methods found in the literature.
dc.language.isoengen_US
dc.titleUntargeted classification for paprika powder authentication using visible – Near infrared spectroscopy (VIS-NIRS).en_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.description.versionsubmittedVersion
dc.source.volume121en_US
dc.source.journalFood Controlen_US
dc.identifier.doi10.1016/j.foodcont.2020.107564
dc.identifier.cristin1832479
dc.relation.projectNofima AS: 201702
dc.relation.projectNorges forskningsråd: 262308
cristin.ispublishedtrue
cristin.fulltextpreprint
cristin.qualitycode1


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