Antibacterial activity of lactic acid bacteria against spoilage and pathogenic bacteria isolated from the same meat small-scale facility: 2—Behaviour of pathogenic and spoilage bacteria in dual species biofilms including a bacteriocin-like-producing lactic acid bacteria |
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| Affiliation: | 1. Department of Food Science and Technology, College of Food and Human Ecology, Federal University of Agriculture, Abeokuta, Ogun-State, Nigeria;2. Department of Biological Sciences, College of Natural and Applied Sciences, McPherson University, Km 96, Lagos- Ibadan Expressway, Seriki Sotayo, Abeokuta, Ogun-State, Nigeria;3. Department of Microbiology, College of Biosciences, Federal University of Agriculture, Abeokuta, Ogun-State, Nigeria;4. Department of Biological Sciences, Room A254, Life Science Complex, 1511 Union Circle, #305220, University of North Texas, Denton, TX 76203-517, USA;1. Laboratory of Natural Products and Organic Synthesis, Department of Chemistry, Faculty of Exact Sciences, University Constantine 1, Constantine 25000, Algeria;2. Univ. Lille, INRA, ISA, Univ. Artois, Univ. Littoral Côte d’Opale − EA 7394 − Institut Charles Viollette, F-59000 Lille, France;3. Centre Universitaire de Mesures et d’Analyses CUMA, Université de Lille 2, 3 rue du Professeur Laguesse, B.P. 83 − 59006 Lille Cedex, Lille 2, France;4. Laboratory of Microbial Engineering and Applications, CHAAB-ARSSAS Campus, University Constantine 1, Constantine 25000, Algeria;5. Laboratoire de Bactériologie, INSERM U995 LIRIC, Faculté des Sciences Pharmaceutiques et Biologiques, Université Lille Nord de France (Lille 2), F-59006 Lille Cedex, France;6. School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, Quai Ernest-Ansermet 30, CH-1211, Geneva 4, Switzerland;1. Department of Biotechnology, N.M.A.M. Institute of Technology, Nitte 574110, India;2. Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal University, Manipal 576104, India |
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| Abstract: | The survival of Listeria innocua ATCC 33090, Staphylococcus aureus E1S-5 and/or Hafnia alvei E1E-25 in dual species biofilms with bacteriocin-like producing lactic acid bacteria (5 Vagococcus carniphilus, 3 Enterococcus faecium, 1 Lactobacillus sakei and 1 Enterococcus sp.) was investigated. The aim was to select strains able to repress the growth of undesirable bacteria in biofilms, i.e., the real mode of bacterial attachment.Two E. faecium and 3 V. carniphilus species were highly antagonistic to L. innocua, S. aureus and H. alvei repressing their growth by reduction levels able to reach 2, 2.7 and 2.4 log10 cfu/ml compared to the positive control made of sole the target microorganism. Furthermore, planktonic cells were more sensitive to the bacteriocin-like substances than sessile ones.First results suggest the possibility of selecting bio-preservatives among the endogenous house flora of the studied small-scale facility, that could be implemented on the processing surfaces to repress the growth of undesirable microorganisms. |
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