Cited by 43Meat and Animal Product QualityBacterial biofilms and quorum sensingListeria monocytogenes in Food Safety

Physicochemical properties of Pseudomonas fragi isolates response to modified atmosphere packaging

Wang, Guang-yu, Li, Ming, Ma, Fang, Wang, Hu-hu, Xu, Xing-lian, Zhou, Guang-hong·2017·FEMS Microbiology Letters

Abstract

Pseudomonas spp., in particular Pseudomonas fragi, are dominant in aerobically stored chilled meats. This work isolated P. fragi isolates from spoiled chicken and investigated the effect of modified atmosphere packaging (MAP, CO2/N2 30%/70%) on physicochemical properties of P. fragi isolates compared to the corresponding controls (air). A total of six P. fragi isolates were isolated from aerobically stored spoiled chicken. MAP inhibited the growth of the isolates primarily in the exponential phase without inducing cell death and weakened the isolate's ability to form biofilms. Isolates 2 and 25, which readily form biofilms, exhibited improved stationary-phase growth in MAP compared to the control packaging. Changes in the surface properties, including reduced motility, increased aggregation and hydrophobicity, were also induced by MAP. The surface property results were then confirmed via scanning electron microscopy. In addition, significant differences were observed in cell phenotypic characterization between individual isolates tested, which indicated that the responses to MAP exposure were strain-dependent. These cell responses allowed P. fragi to adapt to MAP. The study provides practical information regarding microbial responses to MAP stresses, which will help further understanding the bacteriostatic mechanism of MAP.

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Crossref · 10.1093/femsle/fnx106

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Authors
Wang, G.-Y., Li, M., Ma, F., Wang, H.-H., Xu, X.-L., & Zhou, G.-H.
Affiliations
Nanjing Agricultural University (CN)
Venue
FEMS Microbiology Letters
Published
2017-05-22
Volume
364
Issue
11
ISSN
  • 0378-1097 (ISSN-L)
  • 1574-6968
OpenAlex
W2619940161
Cited by
43
References
48
Citations by year
2026: 5 · 2025: 4 · 2024: 7 · 2023: 5 · 2022: 5 · 2021: 7 · 2020: 5 · 2019: 2 · 2018: 3
FWCI
3.05
Type
journal article
Language
en
Open access
closed
Locations
  • FEMS Microbiology Letters (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Natural Science Foundation of Jiangsu Province in China (BK20150678)
  • China Ministry of Agriculture and the Priority Academic Program Development of Jiangsu Higher Education Institutions (080-809001)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Meat and Animal Product Quality
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Bacterial biofilms and quorum sensing
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biotechnology › Listeria monocytogenes in Food Safety
Keywords
Pseudomonas fragi, modified atmosphere packaging, bacterial growth inhibition, biofilm formation, bacterial motility, cell aggregation, cell surface hydrophobicity, strain-dependent response, bacteriostatic mechanism, chilled meat, CO2/N2 atmosphere
MeSH terms
Animals, Chickens, Food Contamination, Food Microbiology, Poultry, Colony Count, Microbial, Food Packaging, Pseudomonas fragi

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