葛 枝, 刘东红, 丁 甜, 徐玉亭, 钟建军. 超声波结合弱酸性电位水处理改善商熟期草莓采后品质[J]. 农业工程学报, 2013, 29(17): 265-270. DOI: 10.3969/j.issn.1002-6819.2013.17.034
    引用本文: 葛 枝, 刘东红, 丁 甜, 徐玉亭, 钟建军. 超声波结合弱酸性电位水处理改善商熟期草莓采后品质[J]. 农业工程学报, 2013, 29(17): 265-270. DOI: 10.3969/j.issn.1002-6819.2013.17.034
    Ge Zhi, Liu Donghong, Ding Tian, Xu Yuting, Zhong Jianjun. Ultrasound combined with slightly acidic electrolyzed water treatment improves quality of immature strawberry[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2013, 29(17): 265-270. DOI: 10.3969/j.issn.1002-6819.2013.17.034
    Citation: Ge Zhi, Liu Donghong, Ding Tian, Xu Yuting, Zhong Jianjun. Ultrasound combined with slightly acidic electrolyzed water treatment improves quality of immature strawberry[J]. Transactions of the Chinese Society of Agricultural Engineering (Transactions of the CSAE), 2013, 29(17): 265-270. DOI: 10.3969/j.issn.1002-6819.2013.17.034

    超声波结合弱酸性电位水处理改善商熟期草莓采后品质

    Ultrasound combined with slightly acidic electrolyzed water treatment improves quality of immature strawberry

    • 摘要: 为了进一步发展草莓贮运保鲜技术,以商熟期的草莓为原料,研究了超声波、弱酸性电位水(slightly acidic electrolyzed water,SAEW)处理对其表面微生物数目和相关品质参数的影响。结果发现:超声波、SAEW及二者结合处理10 min分别使草莓表面初始菌落总数降低了0.52、1.07、1.29 lgCFU/g,霉菌和酵母总数降低了0.30、0.93、1.18 lgCFU/g,且处理后的样品表面微生物始终维持在相对较低的水平。另外,3种处理均改变了草莓贮藏中的呼吸特性,使其出现了呼吸高峰;第14天,超声结合SAEW处理使草莓的可溶性固形物、VC及花青素的含量提高了7.72%、10.53%、19.28%,促使样品表现出一个后熟的过程。同时,试验还发现,超声波处理能抑制草莓硬度的下降,SAEW则对样品硬度无影响。研究结果表明:超声波和SAEW处理不仅能抑制草莓表面微生物的生长,还能调节其贮藏期生理代谢,改善贮藏期间的品质。

       

      Abstract: The consumption of strawberries is preferable because of its nutritional value and special flavor. The ripe strawberry has an extremely short postharvest life because it is highly susceptible to mechanical injury, microbiological decay, and physiological deterioration. On the other hand, the strawberry is non-climacteric and will not ripen after harvest, therefore it has to be picked when fully ripened for the best eating quality. Current methods used for preventing undesirable changes of fruit attributes during storage have a detrimental effect on nutritional properties. Therefore, it's necessary to find appropriate methods to extend the shelf life and maintain the quality of the strawberry.

       

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