Abstract
Monitoring quality of horticultural produce throughout the distribution chain has become an important issue during the last few decades. A tool for achieving this goal is a Time Temperature Integrator (TTI). A feasibility study was carried out to evaluate the potential of TTI's to monitor the cooling efficiency of horticultural products. The kinetic parameters of the quality loss of mushrooms, lettuce and strawberries were determined by fitting first order reaction models of the quality loss, based on the Arrhenius equation. Based on these results a selection of commercially available TTI's with the same kinetic behaviour as the products was made. To evaluate the TTI performance a similar kinetic study was performed for the selected TTI as for the product itself. The response of the TTI was measured during constant and variable temperature profiles with a spectrophotometer. The results indicated the usefulness of TTI's in the distribution chain of horticultural produce.
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