Regulation of apricot ripening and softening process during shelf life by post-storage treatments of exogenous ethylene and 1-methylcyclopropene
Regulation of apricot ripening and softening process during shelf life by post-storage treatments of exogenous ethylene and 1-methylcyclopropene
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DOI：
10.1016/j.scienta.2017.12.061
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发表时间：
2018-02-17
影响因子：
4.3
通讯作者：
Jiang, Weibo
中科院分区：
文献类型：
--
作者：
Fan, Xinguang;Shu, Chang;Jiang, Weibo
采用外源乙烯和1-甲基环丙烯（1-MCP）对冷藏杏进行贮藏后处理，以调控杏在货架期内的后熟软化过程。结果表明，采后乙烯处理可加速冷藏杏果实中可溶性固形物的积累、有机酸的降解、颜色的变化和后熟过程，可有效提高果实的可接受性。贮藏后1-MCP处理强烈抑制了杏货架期内乙烯的产生，导致果胶降解相关酶基因的表达水平受到抑制，这些酶包括多聚半乳糖醛酸酶、β-半乳糖苷酶和果胶甲酯酶。显微镜观察结果表明，1-MCP处理延缓了杏果实的果胶降解和中膜层溶解，延缓了杏果实的软化过程。利用乙烯或1-MCP对杏果实后熟软化过程进行调控，可有效提高消费者的接受度或延缓果实软化。
Post-storage applications of exogenous ethylene and 1-methylcyclopropene (1-MCP) were performed in cold stored apricot to regulate the ripening and softening process during shelf life. The results showed that post storage ethylene treatment could accelerate SSC accumulation, organic acids degradation, color change and ripening process of cold-stored apricot, and could effectively improve the consumer acceptability of the fruit. Post-storage 1-MCP treatment strongly suppressed ethylene production in apricot during shelf life, causing the suppression of expression levels of pectin related genes encoding for pectin degraded enzymes, including polygalacturonase, beta-galactosidase and pectin methyl esterase. Microscopic observation provided a direct evidence that post-storage treatment of 1-MCP delayed pectin degradation and middle lamella dissolution of apricot, and delayed the softening process during shelf life. The regulation of ripening and softening process of apricot with post-storage treatment of ethylene or 1-MCP could be effective for improving consumer acceptability or delaying fruit softening of the fruit.