Original scientific paper
A Mathematical Model of the Modified Atmosphere Packaging (MAP) System for the Gas Transmission Rate of Fruit Produce
Li Li
; Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, PR China
Xi-Hong Li
; Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology, Tianjin 300457, PR China
Zhao-Jun Ban
; Jinan Fruit Research Institute, All China Federation of Supply and Marketing Cooperatives, Shandong 250014, PR China
Abstract
A mathematical model to predict oxygen, carbon dioxide, and water vapour exchanges in non-perforated and micro-perforated modified atmosphere packaging films has successfully been proposed. The transmission rate of gases was measured for films with thickness of 0.03 and 0.05 mm, perforation diameters of 0.5 and 2.0 mm, and temperatures of 0, 10 and 20 °C. Under most conditions, the increase in temperature and perforation diameter increased the transmission rate of oxygen, carbon dioxide, and water vapour, whereas the increase in film thickness decreased the transmission rate of the various gases. Validation of the proposed modified atmosphere packaging model was found to yield good prediction for gas concentrations and percentage losses in the mass of the produce after comparison with the experimental results of modified atmosphere packaging for tomato (Lycopersicon esculentum).
Keywords
MAP; mathematical model; gas transmission rate; shelf-life of fruit
Hrčak ID:
48444
URI
Publication date:
5.3.2010.
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