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The inhibitory effects of sorbate and benzoate against Clostridium perfringens type A isolates

机译：山梨酸酯和苯甲酸酯对产气荚膜梭状芽孢杆菌分离株的抑制作用

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摘要

This study evaluated the inhibitory effects of sorbate and benzoate against Clostridium perfringens type A food poisoning (FP) and non-food-borne (NFB) disease isolates. No significant inhibition of germination of spores of both FP and NFB isolates was observed in rich medium (pH 7.0) supplemented with permissive level of sodium sorbate (0.3% ≈ 0.13 mM undissociated sorbic acid) or sodium benzoate (0.1% ≈ 0.01 mM undissociated benzoic acid) used in foods. However, these levels of sorbate and benzoate effectively arrested outgrowth of germinated C. perfringens spores in rich medium. Lowering the pH of the medium increases the inhibitory effects of sorbate and benzoate against germination of spores of NFB isolates, and outgrowth of spores of both FP and NFB isolates. Furthermore, sorbate and benzoate inhibited vegetative growth of C. perfringens isolates. However, the permissible levels of these organic salts could not control the growth of C. perfringens spores in chicken meat stored under extremely abusive conditions. In summary, although sorbate and benzoate showed inhibitory activities against C. perfringens in the rich medium, no such effect was observed in cooked chicken meat. Therefore, caution should be taken when applying these organic salts into meat products to reduce or eliminate C. perfringens spores.
机译：这项研究评估了山梨酸酯和苯甲酸酯对产气荚膜梭状芽孢杆菌A型食物中毒（FP）和非食物传播（NFB）病菌的抑制作用。在添加允许水平的山梨酸钠（0.3％≈0.13 mM未解离的山梨酸）或苯甲酸钠（0.1％≈0.01 mM未解离的苯甲酸）的丰富培养基（pH 7.0）中，未观察到FP和NFB分离物的孢子萌发有明显抑制作用。酸）用于食品。但是，这些水平的山梨酸酯和苯甲酸酯有效地阻止了富营养培养基中发芽的产气荚膜梭菌孢子的生长。降低培养基的pH值可增加山梨酸酯和苯甲酸酯对NFB分离物孢子萌发以及FP和NFB分离物孢子生长的抑制作用。此外，山梨酸酯和苯甲酸酯抑制产气荚膜梭菌分离株的营养生长。然而，这些有机盐的允许含量不能控制在极端恶劣条件下储存的鸡肉中产气荚膜梭菌孢子的生长。总之，尽管山梨酸酯和苯甲酸酯在丰富的培养基中显示出对产气荚膜梭菌的抑制活性，但是在熟鸡肉中未观察到这种效果。因此，在将这些有机盐应用于肉制品中以减少或消除产气荚膜梭菌孢子时，应格外小心。

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  • 来源
    《Food microbiology》 |2015年第6期|89-98|共10页
  • 作者

    Maryam Alnoman; Pathima Udompijitkul; Daniel Paredes-Sabja; Mahfuzur R. Sarker;

  • 作者单位

    Department of Biomedical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis, OR, 97331 USA;

    Department of Food Science and Technology, Faculty of Agro-Industry, Kasetsart University, Bangkok, Thailand;

    Department of Biomedical Sciences, College of Veterinary Medicine, Oregon State University, Corvallis, OR, 97331 USA,Laboratorio de Mecanismos de Patogenesis Bacteriana, Departamento de Ciencias Biologicas, Facultad de Ciencias Biologicas, Universidad Andres Bello, Santiago, Chile;

    Department of Biomedical Sciences, College of Veterinary Medicine, Oregon State University, 216 Dryden Hall, Corvallis, OR 97331, USA,Department of Microbiology, College of Science, Oregon State University, Corvallis, OR, 97331, 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

    Clostridium perfringens; Spores; Sorbate; Benzoate; Inhibition;

    机译：产气荚膜梭菌;孢子;吸收苯甲酸盐;抑制;

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