Development of Fourier-transformed mid-infrared spectroscopy prediction models for major constituents of fractions of delactosated, defatted milk obtained through ultra- and nanofiltration

Journal of Dairy Science
Marco FranzoiM De Marchi

Abstract

Milk filtration procedures are gaining relevance in the dairy industry because milk ultra- and nanofiltrates are used to increase milk processing efficiency, and as additives for products with improved nutraceutical properties. This study aimed to develop Fourier-transformed mid-infrared spectroscopy calibrations for ultra- and nanopermeate and retentate fractions of defatted and delactosated milk. A total of 154 samples from different milk fractions were collected and analyzed using reference methods to determine protein, solids-not-fat, glucose, and galactose content. The obtained values were matched with their respective Fourier-transformed mid-infrared spectroscopy spectra to develop new prediction models. Calibrations for each trait were built following 3 different approaches to get the best prediction models: (1) using the entire data set, (2) using 3 subsets based on component concentrations (level approach), and (3) using hierarchical clusters calculated with pairwise Mahalanobis distance among spectra (cluster approach). Calibrations were developed using partial least squares regression, after removing low signal-to-noise ratio wavelengths, and validated through a leave-one-out cross-validation procedure. In addition, ...Continue Reading

References

Aug 1, 1987·Journal of Dairy Science·D M Barbano, M E Dellavalle
May 8, 2007·Journal of Pharmaceutical and Biomedical Analysis·Yves RoggoNadine Jent
Jan 21, 2014·Journal of Dairy Science·M De MarchiM Penasa
Jul 23, 2014·Asian-Australasian Journal of Animal Sciences·Pavan KumarDong Kee Jeong
Aug 26, 2014·Journal of Dairy Science·A SturaroM De Marchi
Sep 6, 2014·Journal of Food Science and Technology·Sunil Kumar KhatkarAnju Boora Khatkar
Mar 12, 2015·Journal of Food Science·Shantanu AgarwalHasmukh Patel

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