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Abstract ▼ AI-Helper

Effects of postharvest ethylene and 1-methylcyclopropene (1-MCP) treatments on the physiological metabolism and quality of ‘Hongro’ apples (Malus domestica) were investigated. Fruit were harvested at commercial maturity, treated with 100 μℓㆍℓ⁻¹ ethylene for 24 hours at 10℃ or 1 μℓㆍℓ⁻¹ ...

Effects of postharvest ethylene and 1-methylcyclopropene (1-MCP) treatments on the physiological metabolism and quality of ‘Hongro’ apples (Malus domestica) were investigated. Fruit were harvested at commercial maturity, treated with 100 μℓㆍℓ⁻¹ ethylene for 24 hours at 10℃ or 1 μℓㆍℓ⁻¹ 1-MCP for 24 hours at 10℃, and then stored at 0℃ and 20℃ for 50 days, respectively. Ethylene evolution was completely inhibited by 1-MCP treatment at both storage temperatures. In contrast, 1-MCP treatment effects on respiration were distinct only in apples stored at 20℃. Ethylene treatment tended to increase ethylene evolution and respiration, especially during 20℃ storage. Rises in the ethylene evolution and respiration rates appeared clearly in control and ethylene-treated apples, while not detectable in 1-MCP treated apples during 50-day storage. Storage at 0℃ also effectively reduced ethylene evolution and respiration while delaying the ethylene and respiration peak times. Effects of 1-MCP on fruit quality were significant for maintaining flesh firmness and overall taste while reducing surface greasiness during storage. Overall data indicated that postharvest 1-MCP application could maintain fruit quality during storage at ambient temperature. However, potential of 1-MCP treatment may be limited to ‘Hongro’ apples programmed to be stored at 0℃ for short period.

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