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Calcium Chloride and 1-Methylcyclopropene Treatments Delay Postharvest and Reduce Decay of 'New Queen' Melon

文献类型： 外文期刊

作者： Zhang, Qiang 1 ; Dai, Wenting 2 ; Yang, Hui 2 ; Jia, Wenting 2 ; Ning, Xuefei 1 ; Li, Jixin 2 ;

作者机构： 1.Xinjiang Univ, Coll Life Sci & Technol, Urumqi, Xinjiang, Peoples R China

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

3.Hainan Acad Agr Sci, Inst Agroprod Proc Sci & Technol, 14 Xindan Rd, Haikou 571110, Hainan, Peoples R China

关键词： respiratory intensity; climacteric; pectin; fruit softening; pathogenic microorganism

期刊名称：HORTSCIENCE （ 影响因子：1.455； 五年影响因子：1.617 ）

ISSN： 0018-5345

年卷期： 2019 年 54 卷 7 期

页码：

收录情况： SCI

摘要： In this study, newly harvested 'New Queen' melons were treated with calcium chloride (CaCl2) and 1-methylcyclopropene (1-MCP) alone or in combination before storage. The results show that respiration rate, ethylene release, activity, and gene expression of pectinases such as polygalacturonase (PG), pectin methylesterase (PME), and pectate lyase (PL) in 'New Queen' melons decreased dramatically when treated with 2% CaCl2 and/or 1 mu L.L-1 1-MCP. In addition, climacteric behavior and flesh hardness reduction were inhibited. It was also discovered that softer melon flesh was more conducive to the growth and reproduction of decay-causing microorganisms, according to their growth curves in melons that were different in flesh hardness, suggesting inhibiting fruit softening can slow down the growth of microorganisms in fruit flesh and thus reduce fruit decay rate. The combined use of CaCl2 and 1-MCP was more effective in suppressing respiration rate, ethylene release, and protopectin hydrolysis, which could greatly delay the softening, reduce the decay rate, and extend the shelf life of 'New Queen' melons.

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