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Synergistic Effects of 1-MCP Fumigation and ε-Poly-L-Lysine Treatments on Delaying Softening and Enhancing Disease Resistance of Flat Peach Fruit

文献类型： 外文期刊

作者： Zheng, Yanli 1 ; Jia, Xiaoyu 2 ; Duan, Lihua 1 ; Li, Xihong 1 ; Zhao, Zhiyong 3 ;

作者机构： 1.Tianjin Univ Sci & Technol, Coll Food Sci & Engn, State Key Lab Food Nutr & Safety, Tianjin 300457, Peoples R China

2.Tianjin Acad Agr Sci, Inst Agr Prod Preservat & Proc Sci & Technol, Tianjin 300384, Peoples R China

3.Xinjiang Acad Agr & Reclamat Sci, Inst Agroprod Proc Sci & Technol, Shihezi 832000, Peoples R China

关键词： flat peach; 1-MCP; epsilon-PL; softening; cell wall metabolism; reactive oxygen species; disease resistance

期刊名称：FOODS （ 影响因子：5.2； 五年影响因子：5.5 ）

ISSN：

年卷期： 2023 年 12 卷 19 期

页码：

收录情况： SCI

摘要： Flat peach, a predominant fruit consumed in China, is highly susceptible to softening and perishable. The impact of 1-methylcycloproene (1-MCP) fumigation combined with epsilon-poly-L-lysine (epsilon-PL) on softening and postharvest reactive oxygen species (ROS) and phenylpropanoid pathway metabolisms in peaches and its relationship to disease resistance were investigated. Findings revealed that a combination of 1 mu L L-1 1-MCP and 300 mg L-1 epsilon-PL effectively suppressed the activity of cell-wall-degrading enzymes and the disassembly of cell wall structure, thus maintaining higher firmness and lower decay incidence. Compared to the control group, the synergistic approach bolstered enzymatic responses linked to disease resistance and ROS-scavenge system, consistently preserving total phenolics, flavonoids, ascorbic acid, and glutathione levels. Concurrently, the accumulation of hydrogen peroxide and malondialdehyde was significantly diminished post-treatment. These results show that there is good synergistic effect between 1-MCP and epsilon-PL, which could effectively maintain the quality of flat peach fruit by modulating cell wall metabolism and enhancing the resistance.

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