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首页> 外文期刊>Food microbiology >Application of an innovative water-assisted ultraviolet C light technology for the inactivation of microorganisms in tomato processing industries
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Application of an innovative water-assisted ultraviolet C light technology for the inactivation of microorganisms in tomato processing industries

机译：一种创新的水辅紫外线C轻便技术在番茄加工行业中灭活微生物的应用

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摘要

We aimed to study the efficacy of a water-assisted UVC light device (WUVC) as an innovative clean technology for the disinfection of fresh sound tomatoes and processing wash water and water turbidity was evaluated as a critical parameter. First, wash waters with different turbidities (from 0.4 to 828 NTU) were inoculated with Listeria innocua and treated in the WUVC device at different dosages. Secondly, fresh tomatoes, inoculated with L. innocua and non-inoculated ones, were treated using the WUVC device containing wash water of different turbidities for different times. The reduction of L. innocua populations on wash water and on the surface of tomato was influenced by turbidity; lower reduction values were observed at higher turbidities. Washing tomatoes with tap water with UVC lamps off (control treatment, TW) decreased L. innocua population on the surface of tomatoes but did not eliminate those bacteria that went into the water. Contrarily, when UVC lights were on, i. innocua population in wash water after treatment significantly decreased, those in clean water being the lowest populations. Reductions of native microbiota on the clean water treated with the highest UV-C radiation dose were lower than those obtained when tomatoes were artificially inoculated. We demonstrated that high reductions of L. innocua population on fresh tomatoes could be achieved using the WUVC system but some drawbacks related to the increase of turbidity should be solved for its implementation in real conditions.
机译：我们旨在研究水辅助UVC光器件（WUVC）作为新型新鲜番茄消毒的创新清洁技术，加工洗涤水和水浊度评价为关键参数。首先，用Listeria Innocua接种具有不同浊度（0.4至828 NTU）的洗涤水，并在不同剂量的WUVC装置中处理。其次，使用含有不同时间的不同浊度的WUVC装置对抗L.Innocua和非接种的新鲜西红柿。通过浊度的冲洗水和番茄表面的L.Innocua种群的减少受到浊度的影响;在较高的浊度下观察到较低的还原值。用uvc灯（控制治疗，Tw）用自来水洗涤番茄（控制处理，Tw）下降L. Innocua人口在西红柿的表面上，但没有消除那些进入水的细菌。相反，当UVC灯亮起时，我。治疗后洗涤水中的Innocua人口显着下降，那些清洁水的人口最低。用最高UV-C辐射剂量处理的天然微生物在含有最高UV-C辐射剂量的清洁水中降低，当时番茄人工地接种。我们证明，使用WUVC系统可以实现高减少新鲜西红柿的L. Innocua人口，但应解决与浊度的增加有关的一些缺点，则在实际条件下实施。

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  • 来源
    《Food microbiology》 |2021年第4期|103631.1-103631.7|共7页
  • 作者

    Maribel Abadias; Pilar Colas-Meda; Immaculada Vinas; Gloria Bobo; Ingrid Aguilo-Aguayo;

  • 作者单位

    IRTA Postharvest Programme Pare Cientlfic i Tecnolbgic Agroalimentari de Lleida Parc de Gardeny Edifici Fruitcentre 25003 Lleida Catalonia Spain;

    IRTA Postharvest Programme Pare Cientlfic i Tecnolbgic Agroalimentari de Lleida Parc de Gardeny Edifici Fruitcentre 25003 Lleida Catalonia Spain;

    Food Technology Department University of Lleida Agrotecnio Center Lleida Spain;

    IRTA Postharvest Programme Pare Cientlfic i Tecnolbgic Agroalimentari de Lleida Parc de Gardeny Edifici Fruitcentre 25003 Lleida Catalonia Spain;

    IRTA Postharvest Programme Pare Cientlfic i Tecnolbgic Agroalimentari de Lleida Parc de Gardeny Edifici Fruitcentre 25003 Lleida Catalonia Spain;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Water assisted UVC; Listeria innocva; Microbial load reduction; Wash water quality; Water turbidity;

    机译：水辅助uvc;Listeria Innocva;微生物负荷减少;洗水质;水浊度;

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