The Physiological and Quality Change of Mushroom Agaricus bisporus Stored in Modified Atmosphere Packaging with Various Sizes of Silicone Gum Film Window

The mushroom Agaricus bisporus was stored in packs with different sizes (0, 0.4, 0.8, 1.2 cm2) silicone gum film windows in modified atmosphere system : 100 mL/L O2, 100 mL/L CO2, 800 mL/L N2 at the temperature of 2+-1℃ for 15 days. The results showed that there were obvious different on O2, CO2 and ethylene concentrations, respiration rate, ascorbic acid content, protein content and sensory characteristics among the mushroom stored in packs with different sizes silicone gum film windows. The packs with a 0.8 cm2 silicone gum film window kept an in-packe gas composition of O2 31 mL/L to 37 mL/L, CO2 under 137 mL/L and ethylene under 14.36 μL/L, and these gas compositions were optimum for maintaining mushroom quality, which kept mushroom with good sensory, low respiration rate, low electrolyte leakage (13.3%) and low loss of ascorbic acid content (only dropped 19.2%) and protein content (only dropped 3.7%) .