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1-MCP对灵武长枣果肉软化与褐变的影响及其通径分析

文献类型: 中文期刊

作者: 刘慧;刘杰超;张春岭;张静林;张光弟;方海田;焦中高

作者机构:

关键词: 灵武长枣;软化;褐变;1-MCP;通径分析

期刊名称:果树学报

ISSN: 1009-9980

年卷期: 2022 年 39 卷 2 期

页码:

收录情况: 北大核心(2020版) ; CSCD(2021-2022年度) ; 科技核心(2021版) ; 农林核心(2020版)

摘要: 【目的】明确采后1-甲基环丙烯(1-methylcyclopropene,1-MCP)处理对灵武长枣果肉硬度和褐变度的调控机制及其主要作用因子。【方法】通过比较不同1-MCP处理灵武长枣的果实硬度、褐变度及细胞壁果胶、总酚、叶绿素、可溶性糖含量等相关理化指标的变化情况,利用相关性分析、多元回归分析和通径分析方法分析不同指标对硬度和褐变度的直接作用和间接作用。【结果】1-MCP处理结合低温贮藏条件抑制了灵武长枣采后果实褐变度的增加和硬度的降低,在贮藏15~22 d维持了较高的蔗糖含量和叶绿素b含量、减缓了螯合性果胶的增加,在贮藏后期维持较高的蔗糖含量和DPPH(1,1-diphenyl-2-picrylhydrazyl)清除力。可溶性糖含量通过直接或间接作用对灵武长枣硬度和褐变度产生不同程度的正向或负向效应。【结论】1-MCP结合低温延缓了灵武长枣果实可溶性糖含量的变化,减缓了果肉软化和褐变,维持较好的贮藏品质。

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