Effects of modified atmosphere packaging with various sizes of silicon gum film window on the storage of Agrocybe Chaxingu Huang and the modelling of its respiration rate

Abstract

AbstractAn Agrocybe chaxingu Huang packaged in 5% O2‐ and 10% CO2‐modified atmospheres with different sizes (0, 0.5, 1.0 and 1.5cm2) of silicon gum film window was stored at a temperature of 3 ± 1°C for 20 days. Changes of ascorbic acid content, titratable acidity, electrolyte leakage and sensory characteristic were evaluated. Significant differences were found among the packages with different sizes of silicon gum film window on ascorbic acid content, titratable acidity, electrolyte leakage, general appearance, firmness and odour after 8, 8, 12, 12, 12 and 4 days of storage, respectively. The package with a 1.0cm2 silicon gum film window was the most effective for keeping the quality of Agrocybe chaxingu Huang. Based on the optimum storage condition in this study, an enzyme kinetics respiration model was set successfully and the applicability of the enzyme kinetics respiration model was verified by using the packages of Agrocybe chaxingu Huang with weights of 105 and 125g, respectively. Copyright © 2007 John Wiley & Sons, Ltd.