Effects of 1-Methylcyclopropene and Controlled Atmosphere Storage on the Quality of 'Honeycrisp' Apples
XI INTERNATIONAL CONTROLLED AND MODIFIED ATMOSPHERE RESEARCH CONFERENCE(2015)
摘要
The objective of this study was to investigate the effects of 1-methylcyclopropene (1-MCP) and controlled atmosphere (CA) storage on the physical and sensory quality of 'Honeycrisp' apples during storage. Fruit were harvested from a commercial orchard, treated with or without 1-MCP (1 mu l L-1) for 24 h at 8-10 degrees C, held for 5 days at 10 degrees C, and then stored at 3 degrees C in air or CA (3.0 kPa O-2 + 1.5 kPa CO2) for 8 months. Physical and sensory attributes were evaluated during subsequent holding at room temperature (similar to 22 degrees C) within 1 week. 'Honeycrisp' stored in CA or treated with 1-MCP had lower IEC and higher SSC. Fruit held in CA also had less peel greasiness, while those treated with 1-MCP had higher titratable acidity. The interaction of 1-MCPxCA resulted in inconsistent differences in fruit firmness. Internal CO2 injury was the most prevalent disorder, with the highest incidence in apples treated with 1-MCP and stored in CA. Sensory evaluations revealed that 'Honeycrisp' treated with 1-MCP had lower perceived intensities of oxidized red apple, earthy flavours, skin thickness and chewy textures than their counterparts without 1-MCP. In addition, apples treated with 1-MCP were rated overall as higher in lemony, fresh green apple flavours and acid taste. Fruit not treated with 1-MCP and stored in air were rated higher for oxidized red apple, earthy flavours compared to all other fruit, while CA-stored apples with 1-MCP were rated the highest for fresh green apple flavour and acid taste.
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关键词
Malus xdomestica,CA,disorders,flavor,texture,1-MCP,sensory evaluation
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