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

Abstract

The mushroom Agaricus bisporus was stored in packs with different sizes (0, 0.4, 0.8, 1.2 cm 2 ) silicone gum film windows in modified atmosphere system: 100 mL/L O 2 , 100 mL/L CO 2 , 800 mL/L N 2 at the temperature of 2 ± 1℃ for 15 days. The results showed that there were obvious different on O 2 , CO 2 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 cm 2 silicone gum film window kept an in-packe gas composition of O 2 31 mL/L to 37 mL/L, CO 2 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%).

Packaging in a High O2 or Air Atmospheres and in Microperforated Films Effects on Quality of Button Mushrooms Stored at Room Temperature

“…Both treatment and time did not affect the protein content in mushrooms (Figure 2). Results are in contrast to those showed by Li and Zhang [35] who reported the effect of perforation sizes in packaging films on protein content measured after storage. Similar results were shown by Dhalsamant et al [36] who noted the effect of perforation on protein content in Volvariella volvacea mushrooms.…”

Pseudo-Chromosomal Genome Assembly in Combination with Comprehensive Transcriptome Analysis in Agaricus bisporus Strain KMCC00540 Reveals Mechanical Stimulus Responsive Genes Associated with Browning Effect

“…These findings confirm our explanation of how browning is regulated and further indicate that targeting these genes in molecular breeding methods such as CRISPR-Cas9 might lead to browning-insensitive types. Another approach might be utilizing antioxidant chemicals as in previous reports [ 4 , 5 , 6 , 7 , 16 ]. These chemical methods are easily anticipated by the melanin biosynthesis pathway itself, which includes many oxidative enzymes ( Figure S5 ).…”

“…It has been suggested that mechanical stress/stimulus induces enzymatic reactions, including oxidative reactions. Thus, studies were mainly designed to restrict those reactions by covering the surface of A. bisporus or treating with simple chemicals that might interrupt the enzymes [ 4 , 5 , 6 , 7 , 16 ]. Meanwhile, biotic stress has also been identified as a cause of browning.…”