The preservation effect of 1-MCP on munage grape fruit
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摘要: 为寻找新型、无硫的鲜食葡萄保鲜方法,以新疆木纳格葡萄为试材,研究0.5、1.0和1.5 μL/L的1-MCP熏蒸处理对其在常温(25±0.5) ℃和冷藏(0~3) ℃贮藏期间果实的主要品质、生理指标及其作用效果的影响。结果表明:1-MCP熏蒸处理能在不同程度上降低常温贮藏条件下以及冷藏条件下葡萄的脱粒率、腐烂率、果穗失重率和果梗褐变,保持葡萄的硬度、可溶性固形物、VC含量、可溶性糖含量以及可滴定酸含量。室温贮藏结束时,1.0 μL/L浓度1-MCP处理的葡萄可溶性糖含量为10.18%,比对照组高出29.36%,可溶性固形物比对照组高出20.65%,而失重率却比对照组低34.85%。冷藏贮藏结束时,1.0 μL/L浓度1-MCP处理的葡萄腐烂率为26.13%,比对照组低30.49%,而VC含量比对照组高出34.38%。0.5 μL/L和1.5 μL/L的1-MCP处理对维持果实品质也有一定的作用,但是效果均不如1.0 μL/L处理的果实明显。综上所述,1.0 μL/L浓度的1-MCP处理的葡萄腐烂率最低,果实的外在品质和内在品质下降幅度最小,保鲜效果最好。Abstract: For the fresh grape preservation method of sulfur free,Xinjiang Munage grape as material,0.5,1.0 and 1.5 μL/L of 1-MCP fumigation at room temperature(25±0.5) ℃ and low temperature(0~3) ℃ storage,the main quality during storage of fruit physiological index and its effect of the fruit. The results showed that 1-MCP fumigation treatment could decrease the threshing storage under normal temperature and cooling conditions of grape threshrate,rot rate,weight loss rate of ear stalk and fruit browning in different extent,keep the hardness,soluble solids,grape VC content,soluble sugar content and titratable acid content. At the end of storage at room temperature,the soluble sugar content of grape treated with 1 μL/L 1-MCP was 10.18%,which was 29.36% higher than that of the control,and the soluble solid content was 20.65% higher than that of the control,while the weight loss rate was 34.85% lower than that of the control. At the end of cold storage,the decay rate of grape treated with 1 μL/L 1-MCP was 26.13%,which was 30.49% lower than that of the control,and the content of VC was 34.38% higher than that of the control. 1-MCP treatment with 0.5 μL/L and 1.5 μL/L also had some effect on maintaining fruit quality,but the effect was not as good as that of 1 μL/L treatment. In summary,the decay rate of grape treated with 1 L/L 1-MCP concentration was the lowest,and the external quality and intrinsic quality of fruit decreased the least,and the fresh-keeping effect was the best.
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Keywords:
- 1-MCP /
- munage grape /
- preservation
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期刊类型引用(17)
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