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Bacterial communities of fresh goat meat packaged in modified atmosphere

机译：在改良气氛下包装的新鲜山羊肉的细菌群落

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摘要

The objective of this work was to study the growth and development of fortuitous flora and food pathogens in fresh goat meat packaged under modified atmospheres containing two different concentrations of CO_2. Meat samples were stored at 10 °C under two different modified-atmosphere packing (MAP) conditions: treatment A had 45% C0_2 + 20% 0_2 + 35% N_2 and treatment B had 20% C0_2 + 55% 0_2 + 25% N_2. During 14 days of storage, counts of each bacterial group and dominant species identification by 16S rRNA gene sequencing were performed to determine the microbial diversity present. The MAP condition used for treatment A was a more effective gas mixture for increasing the shelf life of fresh goat meat, significantly reducing the total number of viable bacteria and enterobacteria counts. Members of the Enterobacteriaceae family were the most common contaminants, although Hafnia alvei was dominant in treatment A and Serratia proteamaculans in treatment B. Identification studies at the species level showed that different microorganisms develop under different storage conditions, reflecting the importance of gas composition in the modified atmosphere on the bacterial community. This work provides new insights into the microbial changes of goat meat storage under different MAP conditions, which will be beneficial for the meat industry.
机译：这项工作的目的是研究在含有两种不同浓度的CO_2的改良气氛下包装的新鲜山羊肉中偶然菌群和食物病原体的生长和发育。将肉样品在两种不同的大气包装（MAP）条件下存储在10°C：处理A具有45％C0_2 + 20％0_2 + 35％N_2，处理B具有20％C0_2 + 55％0_2 + 25％N_2。在保存的14天中，对每个细菌组进行计数并通过16S rRNA基因测序鉴定优势种，以确定存在的微生物多样性。用于处理A的MAP条件是一种更有效的混合气体，可延长新鲜山羊肉的货架期，从而显着减少活菌总数和肠细菌计数。肠杆菌科的成员是最常见的污染物，尽管Hafnia alvei在处理A中占主导地位，而沙雷氏菌在处理B中占主导地位。在物种一级的鉴定研究表明，在不同的储存条件下会产生不同的微生物，这反映了气体成分在细菌中的重要性。改变了细菌群落的气氛。这项工作为在不同MAP条件下山羊肉储藏的微生物变化提供了新的见解，这将对肉类行业有利。

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  • 来源
    《Food microbiology》 |2017年第8期|57-63|共7页
  • 作者

    Elia Carrizosa; Maria Jose Benito; Santiago Ruiz-Moyano; Alejandro Hernandez; Maria del Carmen Villalobos; Alberto Martin; Maria de Guía Cordoba;

  • 作者单位

    Nutrition y Bromatología, Escuela de Ingenierías Agrarias, Universidad de Extremadura, Avda. Adolfo Suarez s, 06007 Badajoz, Spain;

    Nutrition y Bromatología, Escuela de Ingenierías Agrarias, Universidad de Extremadura, Avda. Adolfo Suarez s, 06007 Badajoz, Spain, Instituto Universitario de Investigation en Recursos Agrarios (INURA), Avda. de la Investigation s, Campus Universitario, 06006 Badajoz, Spain;

    Nutrition y Bromatología, Escuela de Ingenierías Agrarias, Universidad de Extremadura, Avda. Adolfo Suarez s, 06007 Badajoz, Spain, Instituto Universitario de Investigation en Recursos Agrarios (INURA), Avda. de la Investigation s, Campus Universitario, 06006 Badajoz, Spain;

    Nutrition y Bromatología, Escuela de Ingenierías Agrarias, Universidad de Extremadura, Avda. Adolfo Suarez s, 06007 Badajoz, Spain, Instituto Universitario de Investigation en Recursos Agrarios (INURA), Avda. de la Investigation s, Campus Universitario, 06006 Badajoz, Spain;

    Nutrition y Bromatología, Escuela de Ingenierías Agrarias, Universidad de Extremadura, Avda. Adolfo Suarez s, 06007 Badajoz, Spain, Instituto Universitario de Investigation en Recursos Agrarios (INURA), Avda. de la Investigation s, Campus Universitario, 06006 Badajoz, Spain;

    Nutrition y Bromatología, Escuela de Ingenierías Agrarias, Universidad de Extremadura, Avda. Adolfo Suarez s, 06007 Badajoz, Spain, Instituto Universitario de Investigation en Recursos Agrarios (INURA), Avda. de la Investigation s, Campus Universitario, 06006 Badajoz, Spain;

    Nutrition y Bromatología, Escuela de Ingenierías Agrarias, Universidad de Extremadura, Avda. Adolfo Suarez s, 06007 Badajoz, Spain, Instituto Universitario de Investigation en Recursos Agrarios (INURA), Avda. de la Investigation s, Campus Universitario, 06006 Badajoz, Spain;

  • 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

    Coat; Modified-atmosphere packing; Microbial population; Spoilage;

    机译：涂层;气调包装;微生物种群;损坏;

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