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Predictions of some product parameters based on the processing conditions of ultra-high-temperature milk plants

Tran, H and Datta, Nivedita and Lewis, M. J and Deeth, H. C (2008) Predictions of some product parameters based on the processing conditions of ultra-high-temperature milk plants. International Dairy Journal, 18 (9). pp. 939-944. ISSN 0958-6946

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Abstract

The temperature–time profiles of 22 Australian industrial ultra-high-temperature (UHT) plants and 3 pilot plants, using both indirect and direct heating, were surveyed. From these data, the operating parameters of each plant, the chemical index C*, the bacteriological index B* and the predicted changes in the levels of β-lactoglobulin, α-lactalbumin, lactulose, furosine and browning were determined using a simulation program based on published formulae and reaction kinetics data. There was a wide spread of heating conditions used, some of which resulted in a large margin of bacteriological safety and high chemical indices. However, no conditions were severe enough to cause browning during processing. The data showed a clear distinction between the indirect and direct heating plants. They also indicated that degree of denaturation of α-lactalbumin varied over a wide range and may be a useful discriminatory index of heat treatment. Application of the program to pilot plants illustrated its value in determining processing conditions in these plants to simulate the conditions in industrial UHT plants.

Item Type: Article
Uncontrolled Keywords: ResPubID17936. product parameters, operating parameters, milk processing, UHT milk, UHT milk plants, ultra-high temperatures
Subjects: FOR Classification > 0908 Food Sciences
Faculty/School/Research Centre/Department > School of Biomedical and Health Sciences
Depositing User: VUIR
Date Deposited: 04 Aug 2011 05:14
Last Modified: 05 Feb 2015 23:48
URI: http://vuir.vu.edu.au/id/eprint/4006
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Citations in Scopus: 4 - View on Scopus

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