摘要
【目的】研究1-MCP处理对巫山脆李冷藏期果实相关指标的影响,分析果实硬度与各指标的相关性,以初步探究果实冷藏期软化机理及品质变化,为利用1-MCP进行巫山脆李的采后贮藏工艺开发和商业应用提供理论基础。【方法】采用1-甲基环丙烯(1-methylcyclopropene, 1-MCP)结合(1±0.5)℃低温冷藏处理,测定不同处理、不同时期"巫山脆李"果实硬度、果实内在品质和细胞壁组成成分含量。【结果】1-MCP处理抑制"巫山脆李"果实可溶性固形物和可溶性总糖含量的快速上升,减缓可滴定酸的快速下降,减少冷藏期果实风味物质的消耗;同时,1-MCP处理能延缓果实硬度下降,维持较高的原果胶、总果胶和纤维素含量,减缓可溶性果胶含量的上升,从而推迟果实软化。【结论】1-MCP处理对"巫山脆李"在低温冷藏条件下有较好的保鲜效果,具有商业应用价值。
【Objective】The study aimed to preliminarily explore the softening mechanism and quality changes of fruits during the cold storage,and to provide a theoretical basis for the development and commercial applications of postharvest storage technology of‘Wushan’plums using 1-MCP.Our study has evaluated the effects of 1-MCP treatment on the related indexes of‘Wushan’plum during the cold storage,and analyzed the correlation between the fruit firmness and each index.【Method】In this study,the treatment of 1-methylcyclopropene(1-MCP)combined with a low refrigeration temperature(1±0.5)℃was used to determine the fruit firmness,internal quality and cell wall composition contents of‘Wushan’plums in different treatments and different periods.【Result】1-MCP treatment had inhibited the rapid contents’increase of soluble solids and total soluble sugar in‘Wushan’plums,slowed down the rapid decline of titratableacid and reduced the consumption of flavor substances in the refrigerated fruits.Meanwhile,1-MCP treatment could delay the decline trend of fruit firmness,maintain higher contents of protopectin,total pectin and cellulose,and slow down the increase of soluble pectin content,which might delay the fruitsoftening rate.【Conclusion】1-MCP treatment showed a good preservation effect on‘Wushan’plums during cold storage,which could have a potential commercial application in the future.
作者
赵倩
方波
牛滢
ZHAO Qian;FANG Bo;NIU Ying(Chongqing Academy of Agriculture Sciences,Chongqing 401329,China)
出处
《西南农业学报》
CSCD
北大核心
2019年第12期2933-2938,共6页
Southwest China Journal of Agricultural Sciences
基金
重庆市社会事业与民生保障科技创新专项重点研发项目“脆李品种筛选与采后冷链技术研发应用”(cstc2017shms-zdyfX0014))
重庆市农业科学院青年创新团队项目“特色果树种质创新与采后技术研究”(NKY-2019QC08)
