Effective control of citrus green mold using plasma-activated water with hydrogen peroxide vapor: A non-thermal approach

IF 2.7 2区 农林科学 Q1 ENTOMOLOGY Journal of Stored Products Research Pub Date : 2024-10-30 DOI:10.1016/j.jspr.2024.102457
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Abstract

In this study, a novel approach for controlling Citrus sinensis Salustiana green mold disease in oranges was developed using plasma-activated water (PAW) generated by a Surface Dielectric Barrier Discharge (SDBD) system reinforced with H2O2 cold vapor. Penicillium digitatum, the primary cause of orange mold, was the target of the treatment. The efficiency of the setup was investigated in three stages. First, a suspension of P. digitatum spores was directly treated with Ar/H2O2 plasma to estimate the optimal plasma exposure time required for maximum fungal inactivation. Second, the impact of Argon/H2O2 plasma-treated water (PTW), generated from various plasma exposure times, on mold growth on orange peels was examined. For this, orange peels were placed in Ar/H2O2-PTW for different durations, and mold occurrence was monitored. Finally, the effect of PTW, generated from various Ar/H2O2 plasma exposure times, on mold growth on whole oranges was investigated. Oranges were treated with Ar/H2O2-PTW for different durations, and mold occurrence was analyzed. The results demonstrated that a 20-min treatment of oranges with PTW produced from a 420-s Ar/H2O2 plasma exposure time led to complete inactivation of P. digitatum. This study showed that this hybrid scenario can be effectively used for fungal decontamination in the food industry.

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利用等离子激活水和过氧化氢蒸汽有效控制柑橘绿霉:非热方法
本研究开发了一种新型方法,利用表面介质阻挡放电(SDBD)系统产生的等离子活化水(PAW)和 H2O2 冷蒸气来控制柑橘中的沙氏青霉病。处理的目标是数字青霉,它是橘子霉变的主要原因。我们分三个阶段对该装置的效率进行了研究。首先,用氩气/H2O2 等离子体直接处理数字青霉孢子悬浮液,以估算最大程度灭活真菌所需的最佳等离子体暴露时间。其次,研究了不同等离子体暴露时间产生的氩气/H2O2 等离子体处理水(PTW)对橘子皮上霉菌生长的影响。为此,将橘子皮放置在氩气/H2O2-等离子处理水中,持续不同的时间,并监测霉菌的生长情况。最后,研究了不同 Ar/H2O2 等离子体暴露时间产生的 PTW 对整个橘子上霉菌生长的影响。用不同时间的 Ar/H2O2-PTW 处理橙子,并分析霉菌的发生情况。结果表明,用 420 秒 Ar/H2O2 等离子体暴露时间产生的 PTW 对橙子进行 20 分钟的处理,可完全灭活 P. digitatum。这项研究表明,这种混合方案可有效地用于食品工业的真菌净化。
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来源期刊
CiteScore
5.70
自引率
18.50%
发文量
112
审稿时长
45 days
期刊介绍: The Journal of Stored Products Research provides an international medium for the publication of both reviews and original results from laboratory and field studies on the preservation and safety of stored products, notably food stocks, covering storage-related problems from the producer through the supply chain to the consumer. Stored products are characterised by having relatively low moisture content and include raw and semi-processed foods, animal feedstuffs, and a range of other durable items, including materials such as clothing or museum artefacts.
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