Abstract
ABSTRACT: This study was carried out to investigate proper modified atmosphere condition of king oyster mushroom ( Pleurotus eryngii ) during cold storage and distribution. King oyster mushrooms were divided into two treatments: 1 μL/L 1-methylcyclopropene for 20 hours at 0 ℃ (1-MCP), while the other treatment was left at 0 ℃ (control). They were packaged with 30 ㎛ oriented polypropylene (OPP, 1238.0 cc/m 2 ·day·atm O 2 ), and microperforated (MP3, 3179.9cc/m ·day·atm O 2 ) film. Quality and sensory evaluation parameters of weight loss, stem firmness, skin color, off-flavor, overall quality were monitored after 3, and 4 weeks storage at 0℃ and plus 3 days on the shelf at room temperature. 1-MCP treated mushroom packaged with MP3 film kept 3.6~10.9% O 2 and 9.0~13.3% CO 2 concentration in the bag during storage, and showed high overall quality at 4 weeks storage at 0 ℃ + 3 days on the shelf at room temperature because of the lowest development of off-flavor, stem discoloration, and cap softening among the treatments.
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