naa a22 4500 510725805 CHVBK 20180411082934.0 cr unu---uuuuu 180411e20131001xx s 000 0 eng 10.1007/s11947-012-0915-5 doi (NATIONALLICENCE)springer-10.1007/s11947-012-0915-5 Multivariate Characterization of Milk Fat Fractions by Gas Chromatography [Elektronische Daten] [Jaime Álvarez, Juan Alonso, Daniel Llorente, Cristina Velasco, María Álvarez, Pilar Abrodo, Domingo Gomis] A high-speed gas chromatography method has been developed to separate the fatty acids in different milk fat fractions obtained via the dry fractionation deodorization process (TIRTIAUX method). Exploratory data techniques, namely cluster analysis and principal component analysis (PCA), were applied to gas chromatographic data for fatty acids composition in these milk fractions. Cluster analysis allowed the authors to visualize natural groupings corresponding to milk fat cracking achieved via the TIRTIAUX method. Principal component plots showed that six fractions are grouped in different classes, each group being clearly distinguished. Furthermore, a relationship was established between these classes and fatty acids through PCA analysis. A discriminant linear model for predicting milk fat classes from fatty acid composition was computed; 99% of the criterion variable (milk fat class) variance was explained by the constructed model. Enrichment in unsaturated cis-fatty acids in the olein fractions and in the saturated and unsaturated trans-fatty acids in the stearin fractions was visualized from chemometric analysis. This differentiation of the milk fat fractions on the basis of fatty acids composition will enable food industries to use these fractions in both an efficient and safe way to enrich dairy products, or other foods, for healthy consumption. Springer Science+Business Media, LLC, 2012 Chemometrics nationallicence Cluster analysis nationallicence Fatty acids nationallicence HSGC nationallicence Principal components nationallicence Álvarez Jaime Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain aut Alonso Juan Regional Research and Agri-Food Development Service, Apdo. 13, Ctra. Oviedo s/n, 33300, Villaviciosa, Asturias, Spain aut Llorente Daniel Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain aut Velasco Cristina Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain aut Álvarez María Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain aut Abrodo Pilar Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain aut Gomis Domingo Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain aut Food and Bioprocess Technology Springer US; http://www.springer-ny.com 6/10(2013-10-01), 2651-2658 1935-5130 6:10<2651 2013 6 11947 https://doi.org/10.1007/s11947-012-0915-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11947-012-0915-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Álvarez Jaime Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain aut NATIONALLICENCE 700 1- Alonso Juan Regional Research and Agri-Food Development Service, Apdo. 13, Ctra. Oviedo s/n, 33300, Villaviciosa, Asturias, Spain aut NATIONALLICENCE 700 1- Llorente Daniel Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain aut NATIONALLICENCE 700 1- Velasco Cristina Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain aut NATIONALLICENCE 700 1- Álvarez María Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain aut NATIONALLICENCE 700 1- Abrodo Pilar Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain aut NATIONALLICENCE 700 1- Gomis Domingo Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain aut NATIONALLICENCE 773 0- Food and Bioprocess Technology Springer US; http://www.springer-ny.com 6/10(2013-10-01), 2651-2658 1935-5130 6:10<2651 2013 6 11947 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer