Does the age of milk affect its mid-infrared spectrum and predictions

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dc.citation.volume441
dc.contributor.authorMagro S
dc.contributor.authorSneddon NW
dc.contributor.authorCosta A
dc.contributor.authorChiarin E
dc.contributor.authorPenasa M
dc.contributor.authorDe Marchi M
dc.coverage.spatialEngland
dc.date.accessioned2024-05-16T02:01:06Z
dc.date.available2024-05-16T02:01:06Z
dc.date.issued2024-05-30
dc.description.abstractMilk of dairy species commonly undergo standardized official analyses, these that may require chemical preservation and transportation to a certified laboratory. In this context, storage duration is an important factor that can potential affect both milk chemical analyses and its mid-infrared spectrum. We analysed milk samples at different time points/ages to assess repeatability and reproducibility of mid-infrared predicted traits (e.g., fat and protein). Using spectral data, we also evaluated the ability of spectroscopy coupled with chemometrics to discriminate samples according to their age. Although the main components of milk remained consistently reproducible across age (days), changes in the spectrum due to sample aging and deterioration of the matrix were detectable. Using a discriminant analysis, we achieved a classification accuracy of 77% in validation. Predicting milk age using mid-infrared spectra is feasible, allowing for sample monitoring within circuits where maximum reliability is needed, e.g., bulk or individual milk samples for legal/official use or payment systems.
dc.description.confidentialfalse
dc.edition.editionMay 2024
dc.format.pagination138355-
dc.identifier.author-urlhttps://www.ncbi.nlm.nih.gov/pubmed/38219360
dc.identifier.citationMagro S, Sneddon NW, Costa A, Chiarin E, Penasa M, De Marchi M. (2024). Does the age of milk affect its mid-infrared spectrum and predictions?. Food Chem. 441. (pp. 138355-).
dc.identifier.doi10.1016/j.foodchem.2024.138355
dc.identifier.eissn1873-7072
dc.identifier.elements-typejournal-article
dc.identifier.issn0308-8146
dc.identifier.number138355
dc.identifier.piiS0308-8146(24)00003-7
dc.identifier.urihttps://mro.massey.ac.nz/handle/10179/69581
dc.languageeng
dc.publisherElsevier Ltd
dc.publisher.urihttps://www.sciencedirect.com/science/article/pii/S0308814624000037
dc.relation.isPartOfFood Chem
dc.rights(c) 2024 The Author/s
dc.rightsCC BY-NC-ND 4.0
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectCow milk composition
dc.subjectFraud
dc.subjectMid-infrared spectroscopy
dc.subjectRepeatability
dc.subjectStorage time
dc.subjectFemale
dc.subjectAnimals
dc.subjectMilk
dc.subjectReproducibility of Results
dc.subjectSpectrum Analysis
dc.subjectPhenotype
dc.subjectSpectrophotometry, Infrared
dc.subjectLactation
dc.titleDoes the age of milk affect its mid-infrared spectrum and predictions
dc.typeJournal article
pubs.elements-id486259
pubs.organisational-groupOther
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