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| 低温条件下不同时期1-MCP处理对金冠苹果生理和品质的影响 | |
| 引用本文： | 李江阔,刘 畅,张 鹏,张 鹤,刘 玲. 低温条件下不同时期1-MCP处理对金冠苹果生理和品质的影响[J]. 食品科学, 2015, 36(18): 220-224. DOI: 10.7506/spkx1002-6630-201518041 |
| 作者姓名： | 李江阔 刘 畅 张 鹏 张 鹤 刘 玲 |
| 作者单位： | 1.国家农产品保鲜工程技术研究中心（天津），天津市农产品采后生理与贮藏保鲜重点实验室，天津 300384；2.沈阳农业大学食品学院，辽宁 沈阳 110866 |
| 基金项目： | “十二五”国家科技支撑计划项目（2015BAD16B09） |
| 摘 要： | 金冠苹果采后在低温条件下分别放置0、6、12、18、24 d后用1-甲基环丙烯（1-methylcyclopropene，1-MCP）进行保鲜处理，研究采后不同时期1-MCP处理对冷藏期间金冠苹果生理和品质的影响。结果表明：1-MCP处理维持了较高的可溶性固形物和VC含量，显著抑制了果实的乙烯生成速率、相对电导率以及丙二醛含量的升高，并有效提高过氧化物酶的活性，降低了多酚氧化酶的活性，更好地保持了果实品质。1-MCP的作用效果随着1-MCP处理时期的延迟而下降，采后12 d之内处理的效果较好。因此，金冠苹果采后应尽快用1-MCP进行处理，以低温条件下放置不超过12 d为宜。 |
| 关 键 词： | 1-甲基环丙烯 金冠苹果 处理时期 生理 品质 冷藏期 |
Effect of 1-Methylcyclopropene Treatment at Different Storage Times on Physiology and Quality of Golden Delicious Apples during Low Temperature Storage |
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| LI Jiangkuo,LIU Chang,ZHANG Peng,ZHANG He,LIU Ling. Effect of 1-Methylcyclopropene Treatment at Different Storage Times on Physiology and Quality of Golden Delicious Apples during Low Temperature Storage[J]. Food Science, 2015, 36(18): 220-224. DOI: 10.7506/spkx1002-6630-201518041 | |
| Authors: | LI Jiangkuo LIU Chang ZHANG Peng ZHANG He LIU Ling |
| Affiliation: | 1. Tianjin Key Laboratory of Postharvest Physiology and Storage of Agricultural Products, National Engineering and TechnologyResearch Center for Preservation of Agricultural Products (Tianjin), Tianjin 300384, China;2. College of Food Science, Shenyang Agricultural University, Shenyang 110866, China |
| Abstract: | Effects of 1-methylcyclopropene (1-MCP) treatment on days 0, 6, 12, 18, and 24 during low temperature storage for up to 8 months on the physiology and quality of Golden Delicious apples were studied. The results indicated that 1-MCP treatment maintained higher levels of soluble solids and vitamin C (VC) contents, significantly inhibited the increases in ethylene release rate, relative electrical conductivity and malondialdehyde (MDA) content, effectively promoted peroxidase (POD) activity and inhibited polyphenol oxidase (PPO) activity, thus maintaining better fruit quality. Our results also showed that 1-MCP treatment was less effective when carried out at later time points and exerted a more potent effect when implemented before the 12th day of cold storage. Accordingly, Golden Delicious apples should be treated with 1-MCP after harvest as earlier as possible within 12 days at low temperature. |
| Keywords: | 1-MCP Golden Delicious apples treatment time physiology quality cold storage |
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