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Effect of polymer and glass physicochemical properties on MS2 recovery from food contact surfaces

机译：聚合物和玻璃的理化性质对食品接触表面MS2回收的影响

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摘要

Viruses are transmissible via their interaction with contact surfaces of food containers or tools. This study evaluated the recoveries of MS2 coliphage, a virus surrogate, from polypropylene (PP), polyvinyl chloride CPVC), polyethylene (PE), and glass (borosilicate and soda lime), as influenced by the surface chemistry and topography. MS2 (5-6 logs) in PBS with 1% TSB was inoculated onto each of 9 different surfaces, 24-h cold-incubated, and recovery was quantified by infectivity. The order of MS2 recovery efficiency from smooth surfaces was PP > PE > soda lime glass, which classified into 3 ANOVA groups, p = 0.05. The MS2 recovery ratios of smooth vs. rough surfaces were 1.4-1.5. Atomic force microscopy revealed 21-nm diam pinholes (< 28-nm of MS2 size) in the borosilicate glass. The lowest and highest MS2 recoveries among the 9 surfaces were demonstrated by the hole-bearing borosilicate glass (34 ± 8%) and smooth PP (69 ± 14%) respectively. Generally greater MS2 recovery was obtained from smooth PP and PE surfaces compared to glass, but topographic alterations (pinholes or increased roughness) decreased recovery possibly by trapping the viruses.
机译：病毒通过与食物容器或工具的接触面相互作用而传播。这项研究评估了受表面化学和形貌影响的聚丙烯（PP），聚氯乙烯（CPVC），聚乙烯（PE）和玻璃（硼硅酸盐和苏打石灰）中MS2大肠杆菌噬菌体（一种病毒替代物）的回收率。将含有1％TSB的PBS中的MS2（5-6个对数）接种到9个不同的表面上，进行24小时冷培养，并通过感染性对回收率进行定量。从光滑表面回收的MS2效率的顺序为PP> PE>钠钙玻璃，分为3个ANOVA组，p = 0.05。光滑表面与粗糙表面的MS2回收率为1.4-1.5。原子力显微镜显示硼硅酸盐玻璃中有21 nm的直径针孔（MS2尺寸<28 nm）。含硼硅酸盐玻璃（34±8％）和光滑PP（69±14％）分别证明了9个表面中最低和最高的MS2回收率。通常，与玻璃相比，从光滑的PP和PE表面获得的MS2回收率更高，但是形貌变化（针孔或粗糙度增加）可能会通过捕获病毒而降低回收率。

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  • 来源
    《Food microbiology》 |2020年第5期|103354.1-103354.8|共8页
  • 作者

    R. Yan; Y. Wang; T.V. Duncan; Y.C. Shieh;

  • 作者单位

    Illinois Institute of Technology Department of Food Science and Nutrition 6502 S Archer Rd. Bedford Park IL 60501 USA;

    US Food and Drug Administration 6502 S Archer Rd. Bedford Park IL 60501 USA;

  • 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

    Virus; Recovery; Food contact surface; Polymer; Glass;

    机译：病毒;复苏;食物接触面;聚合物;玻璃;

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