ArticleScientific reports2020
Characterization of the biofilm matrix composition of psychrotrophic, meat spoilage pseudomonads.
Article in Scientific reports, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 77 citations in OpenAlex.
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- Evaluation of Biofilm Production and Antibiotic Resistance/Susceptibility Profiles ofFoods (Basel, Switzerland) · 2025Article
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- Formation and emergent dynamics of spatially organized microbial systems.Interface focus · 2023Review
- Driving forces shaping the microbial ecology in meat packing plants.Frontiers in microbiology · 2023Review
- Rapid-killing efficacy substantiates the antiseptic property of the synergistic combination of carvacrol and nerol against nosocomial pathogens.Archives of microbiology · 2022Article
- Simultaneous Raman and infrared spectroscopy: a novel combination for studying bacterial infections at the single cell level.Chemical science · 2022Article
- Microbial Biofilms: Structural Plasticity and Emerging Properties.Microorganisms · 2022Article
- Insights Into the Dynamics and Composition of Biofilm Formed by Environmental Isolate ofFrontiers in microbiology · 2022Article
- Microbiological Quality Assessment of Chicken Thigh Fillets Using Spectroscopic Sensors and Multivariate Data Analysis.Foods (Basel, Switzerland) · 2021Article
- Spoilage assessment of chicken breast fillets by means of fourier transform infrared spectroscopy and multispectral image analysis.Current research in food science · 2021Article
- Mapping of a Subgingival Dual-Species Biofilm Model Using Confocal Raman Microscopy.Frontiers in microbiology · 2021Article
Corrections and comments
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Authors and funding
6 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Psychrotrophic Pseudomonas species are the key spoilage bacteria of aerobically stored chilled meat. These organisms readily form biofilms on meat under refrigerated conditions leading to consumer rejection and associated economic losses. Limited information is available on the matrix composition of the biofilms formed by these bacteria. We quantified and characterized the main components of the matrix of mono-species biofilms of selected Pseudomonas fragi and Pseudomonas lundensis strains using chemical analysis and Raman spectroscopy. The biofilms were grown at 10 °C and 25 °C on nitro-cellulose membranes placed on surface sterilized beef cuts. Extra-cellular polymeric substances of the matrix were extracted in soluble and bound forms and were chemically assessed for total carbohydrates, proteins and extra-cellular DNA. Both Pseudomonas species showed a significant increase in total carbohydrates and total proteins when grown at 10 °C as compared to 25 °C. Extra-cellular DNA did not show a strong correlation with growth temperature. Raman spectra were obtained from planktonic bacteria and membrane grown biofilms at 10 °C and 25 °C. Higher levels of guanine were detected in planktonic cells as compared to biofilm cells. This study suggests that psychrotrophic Pseudomonas species may respond to cold stress by increasing extra-cellular polymer secretions.
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