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The effect of temperature on adhesion forces between surfaces and model foods containing whey protein and sugar

Goode, K. R.; Bowen, J.; Akhtar, N.; Robbins, P. T. and Fryer, P. J. (2013). The effect of temperature on adhesion forces between surfaces and model foods containing whey protein and sugar. Journal of Food Engineering, 118(4) pp. 371–379.

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DOI (Digital Object Identifier) Link: https://doi.org/10.1016/j.jfoodeng.2013.03.016
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Abstract

The formation of fouling deposit from foods and food components is a severe problem in food processing and leads to frequent cleaning. The design of surfaces that resist fouling may decrease the need for cleaning and thus increase efficiency. Atomic force microscopy has been used to measure adhesion forces between stainless steel (SS) and fluoro-coated glass (FCG) microparticles and the model food deposits (i) whey protein (WPC), (ii) sweetened condensed milk, and (iii) caramel. Measurements were performed over a range of processing temperatures between 30 and 90 oC and at contact times up to 60 s. There is a significant increase in adhesion force of both types of microparticle to WPC at 90 oC for all contact times. For confectionary deposits adhesion to SS was similar. Adhesion of confectionary deposits to FCG at 30 oC revealed a decrease in adhesion compared to SS; at higher temperatures the adhesion forces were similar.

Item Type: Journal Item
Copyright Holders: 2013 Elsevier Ltd.
ISSN: 0260-8774
Keywords: AFM; adhesion; whey protein; sugar; processing temperatures
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Engineering and Innovation
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 43164
Depositing User: James Bowen
Date Deposited: 01 Jun 2015 10:05
Last Modified: 16 Nov 2016 04:32
URI: http://oro.open.ac.uk/id/eprint/43164
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