Co-Authors:
FISHMAN, S., Dept. of Statistics & Operations Research, Agricultural Research Organization, Volcani Center, Bet Dagan, 50 250, Israel
RODOV, V., Dept. of Postharvest Science of Fresh Produce, Agricultural Research Organization, Volcani Center, Bet Dagan, 50 250, Israel
PERETZ, J., Dept. of Postharvest Science of Fresh Produce, Agricultural Research Organization, Volcani Center, Bet Dagan, 50 250, Israel
BEN‐YEHOSHUA, S., Dept. of Postharvest Science of Fresh Produce, Agricultural Research Organization, Volcani Center, Bet Dagan, 50 250, Israel
Abstract:
A model for atmosphere in a package containing fresh fruits was analyzed theoretically and validated by experiments with red bell pepper fruit. The model was based on two processes: fruit respiration and film permeability. Mathematical analysis showed that when rates of O2 consumption and CO2 evolution due to respiration are equal, and film permeability to CO2 is greater than that to O2, the time course curve of CO2 concentration has a maximum. In a closed system, the time course of the sum of the gases could indicate a change of respiratory quotient. These results are independent of model for respiration. To predict extent of overshoot and for a computerized simulation, the equation of Michaelis‐Menten type with noncompetitive inhibition was adopted to describe respiration. Utilizing computer simulations enabled evaluation of film specifications and package dimensions best for a given commodity. Copyright © 1995, Wiley Blackwell. All rights reserved
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