Predicting sediment formation in ultra high temperature-treated whole and skim milk using attenuated total reflectance-Fourier transform infrared spectroscopy

Grewal, M, Chandrapala, J, Donkor, O, Apostolopoulos, V and Vasiljevic, T 2017, 'Predicting sediment formation in ultra high temperature-treated whole and skim milk using attenuated total reflectance-Fourier transform infrared spectroscopy', International Dairy Journal, vol. 74, pp. 39-48.


Document type: Journal Article
Collection: Journal Articles

Title Predicting sediment formation in ultra high temperature-treated whole and skim milk using attenuated total reflectance-Fourier transform infrared spectroscopy
Author(s) Grewal, M
Chandrapala, J
Donkor, O
Apostolopoulos, V
Vasiljevic, T
Year 2017
Journal name International Dairy Journal
Volume number 74
Start page 39
End page 48
Total pages 10
Publisher Elsevier
Abstract Establishing accelerated shelf-life testing using Fourier transform infrared spectroscopy (FTIR) as a tool for prediction of stability requires pre-assessment of correlations between spectral changes and instability development during storage at room temperature. Comparison of results with those at elevated temperatures would establish appropriateness of accelerated shelf-life testing. UHT skim milk (SM) and UHT whole milk (WM) were stored at 20 °C for 9 months to investigate the feasibility of identifying spectral markers to predict sedimentation (a measure of instability). Marker variables corresponding to changes in structure and interactions of lipids, proteins and carbohydrates successfully predicted sedimentation in SM (R2 = 0.92) and WM (R2 = 0.60). Low predictability in WM may be due to influence of fat. These markers were similar to those observed during accelerated shelf-life testing, hence affirming its application with further work required to develop a model able to forecast sedimentation and other instabilities in UHT milk.
Subject Food Chemistry and Molecular Gastronomy (excl. Wine)
Food Engineering
Food Processing
Keyword(s) Accelerated shelf life testing
Attenuated total reflectance Fourier transform infrared spectroscopy
Elevated temperature
Instability development
ITS applications
Sediment formation
Spectral markers
Ultrahigh temperature
DOI - identifier 10.1016/j.idairyj.2017.01.004
Copyright notice © 2017 Elsevier Ltd. All rights reserved.
ISSN 0958-6946
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