热水结合果蜡处理抑制振动引起哈密瓜衰老的机理

远距离运销是哈密瓜流通过程中的重要过程,其中运输过程中的振动是影响哈密瓜衰老的重要逆境。为了减少运输振动导致的哈密瓜的成熟衰老。该文以哈密瓜为原料,利用模拟振动台对哈密瓜进行振动处理,并利用热水结合果蜡对哈密瓜进行保鲜。随后在模拟销售条件的室温条件下(23℃)对哈密瓜的细胞膜完整性及相关的指标进行了检验,同时还利用透射电镜对新鲜和贮藏结束后哈密瓜组织细胞微观结构变化进行了检测。结果表明,运输振动胁迫加速了哈密瓜细胞的微观变化及细胞膜完整性丧失,在经过28 d的模拟销售条件的室温条件下,对照组(未经处理)的相对电导率分别是振动处理组的95%和热水果蜡处理组的1.15倍,且三者间区别显著(P〈0....

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Published in农业工程学报 Vol. 30; no. 24; pp. 318 - 324
Main Author 周然 王锡昌 谢晶 周研
Format Journal Article
LanguageChinese
Published 上海海洋大学食品学院/上海水产品加工及贮藏工程技术研究中心,上海,201306 2014
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ISSN1002-6819
DOI10.3969/j.issn.1002-6819.2014.24.039

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Summary:远距离运销是哈密瓜流通过程中的重要过程,其中运输过程中的振动是影响哈密瓜衰老的重要逆境。为了减少运输振动导致的哈密瓜的成熟衰老。该文以哈密瓜为原料,利用模拟振动台对哈密瓜进行振动处理,并利用热水结合果蜡对哈密瓜进行保鲜。随后在模拟销售条件的室温条件下(23℃)对哈密瓜的细胞膜完整性及相关的指标进行了检验,同时还利用透射电镜对新鲜和贮藏结束后哈密瓜组织细胞微观结构变化进行了检测。结果表明,运输振动胁迫加速了哈密瓜细胞的微观变化及细胞膜完整性丧失,在经过28 d的模拟销售条件的室温条件下,对照组(未经处理)的相对电导率分别是振动处理组的95%和热水果蜡处理组的1.15倍,且三者间区别显著(P〈0.05)。这主要是由于运输振动增加了哈密瓜果实的呼吸作用,伴随较高的丙二醛产生,较低的超氧化物歧化酶,过氧化氢酶和过氧化物酶等抗氧化酶活性。而热水结合果蜡处理抑制了运输振动引起的哈密瓜细胞膜脂质的氧化及与相关的变化,延缓了哈密瓜的衰老,保持了贮藏过程中哈密瓜的品质。研究结果可以为提高采后哈密瓜的运销品质和保鲜效果提供一定的参考。
Bibliography:11-2047/S
Hami melon(Cucumis melo var. saccharinus) is an important and classical special horticultural fruit in China. It is highly appreciated by consumers for its sweetness, crisp and fragrant flavor. In addition, the main production origin of Hami melons is in Xin Jiang province which is located in the northwest of China and far away from the main retail markets such as Beijing, Guangzhou, Hong Kong and Shanghai. Long distance transport is needed for Hami melon distribution. Hami melon is susceptible to ripen and has short shelf life because of the long distance transportation adversity. Transport vibration is one of the adverse impacts on the ripening and quality changes of Hami melon. Therefore, it is needed to study the influences of vibration on the physiological and biochemical changes in Hami melons and to choose a preserving method to delay the ripening of Hami melons during storage/transportation. Loss of membrane integrity which leads to cellular decompartment and breakdown of membrane function in
ISSN:1002-6819
DOI:10.3969/j.issn.1002-6819.2014.24.039