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首页> 外文期刊>Food microbiology >Application of bacteriocinogenic Enterococcus mundtii CR135 and Enterococcus faecium ST88Ch in the control of Listeria monocytogenes in fresh Minas cheese
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Application of bacteriocinogenic Enterococcus mundtii CR135 and Enterococcus faecium ST88Ch in the control of Listeria monocytogenes in fresh Minas cheese

机译：细菌致病性肠球菌CR135和粪肠球菌ST88Ch在控制新鲜米纳斯奶酪中单核细胞增生李斯特菌中的应用

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摘要

Several strains of Enterococcus spp. are capable of producing bacteriocins with antimicrobial activity against important bacterial pathogens in dairy products. In this study, the bacteriocins produced by two Enterococcus strains (Enterococcus mundtii CRL35 and Enterococcus faecium ST88Ch), isolated from cheeses, were characterized and tested for their capability to control growth of Listeria monocytogenes 426 in experimentally contaminated fresh Minas cheese during refrigerated storage. Both strains were active against a variety of pathogenic and non-pathogenic microorganisms and bacteriocin absorption to various L monocytogenes, Enterococcus faecalis ATCC 19443 and Lactobacillus sakei ATCC 15521 varied according to the strain and the testing conditions (pH, temperature, presence of salts and surfactants). Growth of L. monocytogenes 426 was inhibited in cheeses containing E. mundtii CRL35 up to 12 days at 8 ℃, evidencing a bacteriostatic effect. E. faecium ST88Ch was less effective, as the bacteriostatic affect occurred only after 6 days at 8 ℃. In cheeses containing nisin (12.5 mg/kg), less than one log reduction was observed. This research underlines the potential application of E. mundtii CRL35 in the control of L monocytogenes in Minas cheese.
机译：肠球菌属的几种菌株。能够产生对乳制品中重要细菌病原体具有抗菌活性的细菌素。在这项研究中，对从干酪中分离的两种肠球菌菌株（肠球菌CRL35和粪肠球菌ST88Ch）产生的细菌素进行了表征，并测试了它们在冷藏过程中控制受实验污染的新鲜Minas干酪中控制单核细胞增生李斯特菌426的能力。两种菌株均对多种致病性和非致病性微生物具有活性，并且细菌素对各种单核细胞增生李斯特菌具有吸收作用，粪肠球菌ATCC 19443和日本乳杆菌ATCC 15521随菌株和测试条件（pH，温度，盐和表面活性剂的存在）而变化）。在8℃下，含单株大肠杆菌CRL35的干酪中单核细胞增生李斯特菌426的生长被抑制长达12天，具有抑菌作用。粪肠球菌ST88Ch效果较差，因为其抑菌作用仅在8℃下6天后才发生。在含乳链菌肽（12.5毫克/千克）的奶酪中，观察到减少量不到1个对数。这项研究强调了芒氏大肠杆菌CRL35在控制米纳斯奶酪中单核细胞增生李斯特氏菌中的潜在应用。

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  • 来源
    《Food microbiology》 |2012年第1期|p.38-47|共10页
  • 作者

    Esteban Vera Pingitore; Svetoslav Dimitrov Todorov; Fernando Sesma; Bernadette Dora Gombossy de Melo Franco;

  • 作者单位

    Universidade de Sao Paulo, Faculdade de Ciencias Farmaceuticas, Departamento de Aiimentos e Nutricao Experimental, Laboratorio de Microbiologia de Alimentos, Av. Prof. Lineu Prestes 580 Bl 14, 05508-000 Sao Paulo, SP, Brazil,Centro de Referenda para Lactobacilos, Chacabuco 145, 4000 San Miguel de Tucuman, Tucuman, Argentina;

    Universidade de Sao Paulo, Faculdade de Ciencias Farmaceuticas, Departamento de Aiimentos e Nutricao Experimental, Laboratorio de Microbiologia de Alimentos, Av. Prof. Lineu Prestes 580 Bl 14, 05508-000 Sao Paulo, SP, Brazil;

    Centro de Referenda para Lactobacilos, Chacabuco 145, 4000 San Miguel de Tucuman, Tucuman, Argentina;

    Universidade de Sao Paulo, Faculdade de Ciencias Farmaceuticas, Departamento de Aiimentos e Nutricao Experimental, Laboratorio de Microbiologia de Alimentos, Av. Prof. Lineu Prestes 580 Bl 14, 05508-000 Sao Paulo, SP, Brazil;

  • 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

    bacteriocins; minas cheese; enterococcus mundtii; enterococcus faecium; listeria monocytogenes;

    机译：细菌素米纳斯奶酪;蒙蒂肠球菌粪肠球菌;李斯特菌;

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