Journal
FOOD CONTROL
Volume 34, Issue 1, Pages 230-234Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodcont.2013.04.041
Keywords
Urease; Time-temperature indicator; Kinetic
Categories
Funding
- China high-tech project [2007AA100408, 2011AA100804, 2012BAD31B06]
- province key RD project [2010R50032]
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Time-temperature indicator (TTI) is a small commercial device used widely in food field. A TTI system on the basis of the chemical reaction between urease and carbamide was developed. The discoloration kinetics of urease-based TTI was explored. The mathematics formula that revealed the relationships of the change of TTI color with time and temperature has been established. The activation energy of urease-based TTI was 23.05 +/- 1.15 kJ/mol (+/- 95% confidence interval). This type of TTI system has the potential to apply to some time temperature dependence foods with similar Ea values. (C) 2013 Elsevier Ltd. All rights reserved.
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