Department of Biology, Faculty of Science, Branch of Tayma, University of Tabuk, P.O. Box 741, Tabuk, 71491, Saudi Arabia.
King Marriott Higher Institute of Engineering & Technology, Alexandria, Egypt.
Sci Rep. 2022 Oct 15;12(1):17323. doi: 10.1038/s41598-022-22335-5.
The potential of the surface dielectric barrier discharge technique (SDBD) was evaluated to decontaminate the date palm fruit. Preliminary investigations emphasized that Aspergillus niger fungus was predominant in most date samples as a post-harvest infestation. The influence of SDBD techniques on the viability of A. niger isolated from date varieties was investigated and documented. Physical and chemical characterizations of treated dates were assessed, and statistical correlation coefficients were calculated and elucidated. A 4 log reduction of A. niger radial growth was observed at 3 min exposure/15 days of incubation. Simultaneous reductions in pH, water activity, and moisture content of treated dates were observed when compared to untreated dates. Statistical analysis showed a positive correlation between physical and chemical variables with the viability of A. niger in treated samples. Therefore, we believe that SDBD treatment will be a promising technique for decontaminating date fruits from attacked fungi, which will positively impact sustainable food security and consumer health.
表面介质阻挡放电技术（SDBD）的潜力被评估用于对椰枣果实进行消毒。初步研究强调，黑曲霉真菌在大多数椰枣样本中是主要的收获后侵染。研究并记录了 SDBD 技术对从椰枣品种中分离出的黑曲霉的活力的影响。对处理过的椰枣的物理和化学特性进行了评估，并计算和阐明了统计相关系数。在 3 分钟暴露/15 天孵育时间后，观察到黑曲霉的径向生长减少了 4 个对数。与未处理的椰枣相比，处理过的椰枣的 pH 值、水活度和水分含量同时降低。统计分析显示，在处理样本中，物理和化学变量与黑曲霉的活力之间存在正相关关系。因此，我们相信 SDBD 处理将是一种有前途的技术，可用于从受攻击的真菌中对椰枣果实进行消毒，这将对可持续的粮食安全和消费者健康产生积极影响。
