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Application of plasma activated water for decontamination of alfalfa and mung bean seeds

机译：血浆活性水在苜蓿和绿豆种子去污中的应用

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摘要

Microbial contamination of fresh produce is a major public health concern, with the number of associated disease outbreaks increasing in recent years. The consumption of sprouted beans and seeds is of particular concern, as these foodstuffs are generally consumed raw, and are produced in conditions favourable for the growth of zoonotic pathogens, if present in seeds prior to sprouting or in irrigation water. This work aimed to evaluate the activity of plasma activated water (PAW) as a disinfecting agent for alfalfa (Medicagp sativa) and mung bean (Vigna radiata) seeds, during seed soaking. Each seed type was inoculated with Escherichia coli O157, E. coli O104, Listeria monocytagen.es or Salmonella Montevideo, and treated with PAW for different times. A combination of PAW and ultrasound treatment was also evaluated. The germination and growth rate of both seeds were assessed after PAW treatments. PAW was demonstrated to have disinfecting ability on sprouted seeds, with reductions of up to Log_(10) 1.67 cfu/ g in alfalfa seeds inoculated with E. coli O104, and a reduction of Logio 1.76 cfu/g for mung bean seeds inoculated with E. coli O157 observed. The germination and growth rate of alfalfa and mung bean sprouts were not affected by the PAW treatments. The combination of a PAW treatment and ultrasound resulted in increased antimicrobial activity, with a reduction of Logio 3.48 cfu/g of S. Montevideo in mung bean seeds observed. These results demonstrate the potential for PAW to be used for the inactivation of pathogenic microorganisms which may be present on sprouted seeds and beans, thereby providing greater assurance of produce safety.
机译：新鲜农产品的微生物污染是一个主要的公共卫生问题，近年来相关的疾病爆发的数量增加。由于这些食品通常被消耗原料，并且在培养或在灌溉水中存在的情况下，这些食品通常被消耗，并且在灌溉水中的种子中存在的条件下产生的豆类和种子的消耗特别关注。这种作品旨在评估血浆活性水（PAW）作为苜蓿（Medicagp Sativa）和绿豆（Vigna Radiata）种子的消毒剂的活性，种子浸泡。将每种种子类型接种大肠杆菌O157，大肠杆菌O104，Histeria monocytagen.es或沙门氏菌蒙脱石，并用爪子处理不同的时间。还评估了爪子和超声处理的组合。在PAW处理后评估了两种种子的萌发和生长速率。爪子被证明在发芽的种子上具有消毒能力，在接种大肠杆菌O104的苜蓿种子中减少到α1（10）1.67 Cfu / g的降低，以及用于接种的绿豆种子的LogiO 1.76 Cfu / g的降低。大肠杆菌O157观察到。苜蓿和绿豆芽的萌发和生长速率不受爪子治疗的影响。爪子治疗和超声的组合导致抗微生物活性增加，随着观察到的绿豆种子的Montevideo的LogiO 3.48 Cfu / g的降低。这些结果证明了爪子用于灭活的爪子，其可能存在于发芽的种子和豆类上，从而提供了更大的产生安全性的保证。

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  • 来源
    《Food microbiology》 |2021年第6期|103708.1-103708.10|共10页
  • 作者

    Bernardino Machado-Moreira; Brijesh K. Tiwari; Karl G. Richards; Florence Abram; Catherine M. Burgess;

  • 作者单位

    Teagasc Food Research Centre Ashtown Dublin Ireland Functional Environmental Microbiology National University of Ireland Galway Galway Ireland;

    Teagasc Food Research Centre Ashtown Dublin Ireland;

    Teagasc Johnstown Castle Environmental Research Centre Wexford Ireland;

    Functional Environmental Microbiology National University of Ireland Galway Galway Ireland;

    Teagasc Food Research Centre Ashtown Dublin Ireland;

  • 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

    Plasma activated water; Sprouted seeds; Foodborne pathogens;

    机译：等离子体活性水;发芽的种子;食源性病原体;

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