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首页> 外文期刊>Food microbiology >Development of a model describing the inhibitory effect of selected preservatives on the growth of Listeria monocytogenes in a meat model system
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Development of a model describing the inhibitory effect of selected preservatives on the growth of Listeria monocytogenes in a meat model system

机译：描述肉类模型系统中描述选定防腐剂对单核细胞增生李斯特菌生长的抑制作用的模型的开发

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摘要

The objective of this study was to evaluate the impact of seven independent factors consisting of sodium nitrite, pH, sodium chloride, sodium acetate, sodium lactate syrup, calcium propionate and a blend of nisin and hop alpha acids on the growth rate of Listeria monocytogenes in ham as a model of ready-to-eat (RTE) meat products. A central composite consisted of seven factors mentioned above was designed and the response surface methodology was applied for creating a mathematic model to predict the growth rate of L. monocytogenes in RTE meat products. Six parameters showed a significant (P ≤ 0.1) influence on the growth rate of L. monocytogenes. Only the blend of nisin and hop alpha acids did not show any significant effect (P ＞ 0.1) in the concentrations used in this study. Increasing concentration of sodium chloride, sodium nitrite, sodium acetate, potassium lactate and calcium propionate in meat reduced bacterial growth rate while increasing pH in meat increased the growth rate of L. monocytogenes. The current mathematical equation will be an important tool in order to reduce the required number of challenge studies performed in order to ensure a safe food product.
机译：这项研究的目的是评估七个独立的因素，包括亚硝酸钠，pH，氯化钠，乙酸钠，乳酸钠糖浆，丙酸钙以及乳链菌肽和啤酒花α-酸的混合物对单核细胞增生李斯特菌生长速率的影响。火腿是即食（RTE）肉类产品的典范。设计了由上述七个因素组成的中央复合材料，并应用响应面方法建立了数学模型，以预测RTE肉制品中单核细胞增生李斯特菌的生长速率。六个参数对单核细胞增生李斯特菌的生长速率有显着影响（P≤0.1）。在本研究中使用的浓度下，只有乳链菌肽和蛇麻草α-酸的混合物没有显示任何显着影响（P＞ 0.1）。肉中氯化钠，亚硝酸钠，乙酸钠，乳酸钾和丙酸钙的浓度增加会降低细菌的生长速率，而肉中pH值的升高会增加单核细胞增生李斯特菌的生长速率。当前的数学方程式将是重要的工具，以减少为确保食品安全而进行的挑战研究所需的次数。

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  • 来源
    《Food microbiology》 |2016年第febaptab期|115-121|共7页
  • 作者

    Dominic Dussault; Khanh Dang Vu; Monique Lacroix;

  • 作者单位

    Canadian Irradiation Centre and Research Laboratories in Sciences Applied to Food, INRS-Institut Armand-Frappier, Laval, Quebec, Canada,BSA Food Ingredients, S.E.C/L.P. Inc., 6005 Boulevard Couture, Montreal, Quebec, H1P 3E1, Canada;

    Canadian Irradiation Centre and Research Laboratories in Sciences Applied to Food, INRS-Institut Armand-Frappier, Laval, Quebec, Canada;

    Canadian Irradiation Centre and Research Laboratories in Sciences Applied to Food, INRS-Institut Armand-Frappier, Laval, Quebec, Canada, 531 boul. des Prairies, Laval, Quebec, H7V 1B7, Canada;

  • 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

    Mathematical modeling; Listeria monocytogenes; Nitrite; Nisin; Organic acids; Deli meat;

    机译：数学建模;李斯特菌;亚硝酸盐日清;有机酸;熟食肉;

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