Abstract：
:The aim of the present work was to determine the fatty acid and fat-soluble vitamin composition and the season of ewe's milk production using NIR spectroscopy. 219 ewe's milk samples from different breeds and feeding regimes were taken each month over one year. Fatty acids were analyzed by gas chromatography, and retinol and α-, and γ-tocopherol by liquid chromatography. The results showed that the quantification was more accurate for the milk dried on paper, except for vitamins. Calibration statistical descriptors on milk dried on paper were good for capric, lauric, myristic, palmitoleic, stearic and oleic acids, and acceptable for caprilic, undecanoic, 9c, 11tCLA, ΣCLA, PUFA, ω3, ω6, retinol and α-tocopherol. The equations for the discrimination of seasonality was obtained using the partial least squares discriminant analysis (PLSDA) algorithm. 93% of winter samples and 89% of summer samples were correctly classified using the NIR spectra of milk dried on paper.
journal_name
Food Chemjournal_title
Food chemistryauthors
Revilla I,Escuredo O,González-Martín MI,Palacios Cdoi
10.1016/j.foodchem.2016.07.078subject
Has Abstractpub_date
2017-01-01 00:00:00pages
468-477eissn
0308-8146issn
1873-7072pii
S0308-8146(16)31100-1journal_volume
214pub_type
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