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首页> 外文期刊>LWT-Food Science & Technology >Effects of a feasible 1-methylcyclopropene postharvest treatment on senescence and quality maintenance of harvested Huanghua pears during storage at ambient temperature
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Effects of a feasible 1-methylcyclopropene postharvest treatment on senescence and quality maintenance of harvested Huanghua pears during storage at ambient temperature

机译：可行的1-甲基环丙烯采后处理对黄花梨常温贮藏期间衰老和品质维持的影响

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摘要

The effects of paper containing 1-methylcyclopropene (1-MCP) on senescence and quality of harvested Huanghua pears during storage at (25 +/- 1) degrees C and 90% relative humidity were investigated. As compared to the control fruit, the fruit treated with different doses (0.45, 0.9 or 1.35 mu L/L) of 1-MCP displayed the decreased rates of respiration and ethylene production, had lower cellular membrane relative leakage rate and lower weight loss, maintained higher value of hue angle (h degrees) in fruit surface and had less change of color in peel, had higher content of chlorophyll in peel and higher content of titratable acidity in pulp, and kept higher fruit firmness. Among the different doses of 1-MCP treatment, the fruit treated with 0.9 mu L/L 1-MCP for 12 h exhibited the most effectiveness for increasing storability and delaying senescence, which maintained higher activities of superoxide dismutase, catalase and ascorbate peroxidase, higher contents of ascorbic acid and glutathione, had lower rate of superoxide anion production and lower malondialdehyde content. The postharvest treatment with paper containing 1-MCP at 0.9 mu L/L for 12 h could effectively delay fruit senescence, maintain higher quality and exhibit better storage behavior which might suggest a feasible technique for keeping quality of harvested Huanghua pears. (C) 2015 Elsevier Ltd. All rights reserved.
机译：研究了含1-甲基环丙烯（1-MCP）的纸对（25 +/- 1）摄氏度和90％相对湿度下储存的黄花梨的衰老和品质的影响。与对照水果相比，用不同剂量（0.45、0.9或1.35μL/ L）的1-MCP处理的水果显示出呼吸速率和乙烯产量降低，细胞膜相对泄漏率降低，体重减轻，保持果实表面的色相角（h度）较高，果皮的颜色变化较小，果皮中的叶绿素含量较高，果肉的可滴定酸度含量较高，并保持较高的水果硬度。在不同剂量的1-MCP处理中，以0.9μL / L 1-MCP处理12 h的果实表现出最有效的增加耐贮性和延缓衰老的作用，并保持较高的超氧化物歧化酶，过氧化氢酶和抗坏血酸过氧化物酶活性，并保持较高的活性。抗坏血酸和谷胱甘肽的含量较低，超氧化物阴离子的产生速率较低，丙二醛含量较低。用1-MCP的0.9μL/ L纸进行的收获后处理12 h可以有效地延迟果实衰老，保持较高的品质并表现出更好的贮藏性能，这可能是保持黄花梨品质的可行技术。 （C）2015 Elsevier Ltd.保留所有权利。

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