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Rippa A, Bilei S, Peruzy MF, Marrocco MG, Leggeri P, Bossù T, Murru N. Antimicrobial Resistance of Listeria monocytogenes Strains Isolated in Food and Food-Processing Environments in Italy. Antibiotics (Basel) 2024; 13:525. [PMID: 38927191 PMCID: PMC11200948 DOI: 10.3390/antibiotics13060525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Revised: 05/30/2024] [Accepted: 06/01/2024] [Indexed: 06/28/2024] Open
Abstract
Listeria monocytogenes, along with various other pathogenic bacteria, may show resistance against a broad spectrum of antibiotics. Evaluating the extent of resistance in harmful microorganisms like Listeria monocytogenes holds significant importance in crafting novel therapeutic strategies to mitigate or combat the rise of infections stemming from antibiotic-resistant bacteria. The present work aims to investigate the occurrence of antimicrobial resistance among Listeria monocytogenes strains in meat products (n = 173), seafood (n = 54), dairy products (n = 19), sauces (n = 2), confectionary products (n = 1), ready-to-eat rice dishes (n = 1), and food-processing environments (n = 19). A total of 269 Listeria monocytogenes strains belonging to eight different serovars were tested against 10 antimicrobials. In the classes of antibiotics, most of the strains were resistant antibiotics belonging to the family of β-lactams (92.94%). High proportions of L. monocytogenes isolates were resistant to oxacillin (88.48%), followed by fosfomycin (85.87%) and flumenique (78.44%). The lowest level of resistance was observed against gentamycin (1.49%). A total of 235 strains (n = 87.36%) showed a profile of multidrug resistance. In conclusion, a high occurrence of resistant and multidrug-resistant strains of Listeria monocytogenes was observed among the examined serotypes isolated from different food sources. This understanding enables the adoption of suitable measures to avert contamination and the spread of resistant bacteria via food.
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Affiliation(s)
- Antonio Rippa
- Department of Veterinary Medicine and Animal Production, University of Naples “Federico II”, Via Delpino 1, 80137 Naples, Italy; (A.R.); (N.M.)
| | - Stefano Bilei
- Department of Food Microbiology, Istituto Zooprofilattico Sperimentale of Regions Lazio and Toscana “Mariano Aleandri”, Via Appia Nuova 001411, 00178 Rome, Italy; (S.B.); (M.G.M.); (P.L.); (T.B.)
| | - Maria Francesca Peruzy
- Department of Veterinary Medicine and Animal Production, University of Naples “Federico II”, Via Delpino 1, 80137 Naples, Italy; (A.R.); (N.M.)
| | - Maria Grazia Marrocco
- Department of Food Microbiology, Istituto Zooprofilattico Sperimentale of Regions Lazio and Toscana “Mariano Aleandri”, Via Appia Nuova 001411, 00178 Rome, Italy; (S.B.); (M.G.M.); (P.L.); (T.B.)
| | - Patrizia Leggeri
- Department of Food Microbiology, Istituto Zooprofilattico Sperimentale of Regions Lazio and Toscana “Mariano Aleandri”, Via Appia Nuova 001411, 00178 Rome, Italy; (S.B.); (M.G.M.); (P.L.); (T.B.)
| | - Teresa Bossù
- Department of Food Microbiology, Istituto Zooprofilattico Sperimentale of Regions Lazio and Toscana “Mariano Aleandri”, Via Appia Nuova 001411, 00178 Rome, Italy; (S.B.); (M.G.M.); (P.L.); (T.B.)
| | - Nicoletta Murru
- Department of Veterinary Medicine and Animal Production, University of Naples “Federico II”, Via Delpino 1, 80137 Naples, Italy; (A.R.); (N.M.)
- Task Force on Microbiome Studies, University of Naples Federico II, 80138 Naples, Italy
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Byun KH, Kim HJ. Survival strategies of Listeria monocytogenes to environmental hostile stress: biofilm formation and stress responses. Food Sci Biotechnol 2023; 32:1631-1651. [PMID: 37780599 PMCID: PMC10533466 DOI: 10.1007/s10068-023-01427-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 08/29/2023] [Accepted: 08/31/2023] [Indexed: 10/03/2023] Open
Abstract
Listeria monocytogenes is a critical foodborne pathogen that causes listeriosis and threatens public health. This pathogenic microorganism forms a transmission cycle in nature, food industry, and humans, expanding the areas of contamination among them and influencing food safety. L. monocytogenes forms biofilms to protect itself and promotes survival through stress responses to the various stresses (e.g., temperature, pH, and antimicrobial agents) that may be inflicted during food processing. Biofilms and mechanisms of resistance to hostile external or general stresses allow L. monocytogenes to survive despite a variety of efforts to ensure food safety. The current review article focuses on biofilm formation, resistance mechanisms through biofilms, and external specific or general stress responses of L. monocytogenes to help understand the unexpected survival rates of this bacterium; it also proposes the use of obstacle technology to effectively cope with it in the food industry.
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Affiliation(s)
- Kye-Hwan Byun
- Food Safety and Distribution Research Group, Korea Food Research Institute, Jeollabuk-Do, Wanju, 55365 Republic of Korea
| | - Hyun Jung Kim
- Food Safety and Distribution Research Group, Korea Food Research Institute, Jeollabuk-Do, Wanju, 55365 Republic of Korea
- Department of Food Biotechnology, University of Science and Technology, Daejeon, 34113 Republic of Korea
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Rebelo A, Almeida A, Peixe L, Antunes P, Novais C. Unraveling the Role of Metals and Organic Acids in Bacterial Antimicrobial Resistance in the Food Chain. Antibiotics (Basel) 2023; 12:1474. [PMID: 37760770 PMCID: PMC10525130 DOI: 10.3390/antibiotics12091474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/02/2023] [Accepted: 08/08/2023] [Indexed: 09/29/2023] Open
Abstract
Antimicrobial resistance (AMR) has a significant impact on human, animal, and environmental health, being spread in diverse settings. Antibiotic misuse and overuse in the food chain are widely recognized as primary drivers of antibiotic-resistant bacteria. However, other antimicrobials, such as metals and organic acids, commonly present in agri-food environments (e.g., in feed, biocides, or as long-term pollutants), may also contribute to this global public health problem, although this remains a debatable topic owing to limited data. This review aims to provide insights into the current role of metals (i.e., copper, arsenic, and mercury) and organic acids in the emergence and spread of AMR in the food chain. Based on a thorough literature review, this study adopts a unique integrative approach, analyzing in detail the known antimicrobial mechanisms of metals and organic acids, as well as the molecular adaptive tolerance strategies developed by diverse bacteria to overcome their action. Additionally, the interplay between the tolerance to metals or organic acids and AMR is explored, with particular focus on co-selection events. Through a comprehensive analysis, this review highlights potential silent drivers of AMR within the food chain and the need for further research at molecular and epidemiological levels across different food contexts worldwide.
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Affiliation(s)
- Andreia Rebelo
- UCIBIO—Applied Molecular Biosciences Unit, Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (A.R.); (L.P.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- School of Medicine and Biomedical Sciences (ICBAS), University of Porto, 4050-313 Porto, Portugal
- ESS, Polytechnic of Porto, 4200-072 Porto, Portugal
| | - Agostinho Almeida
- LAQV/REQUIMTE, Laboratory of Applied Chemistry, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal;
| | - Luísa Peixe
- UCIBIO—Applied Molecular Biosciences Unit, Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (A.R.); (L.P.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Patrícia Antunes
- UCIBIO—Applied Molecular Biosciences Unit, Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (A.R.); (L.P.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- Faculty of Nutrition and Food Sciences (FCNAUP), University of Porto, 4150-180 Porto, Portugal
| | - Carla Novais
- UCIBIO—Applied Molecular Biosciences Unit, Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (A.R.); (L.P.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
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Wiktorczyk-Kapischke N, Wałecka-Zacharska E, Korkus J, Grudlewska-Buda K, Budzyńska A, Wnuk K, Gospodarek-Komkowska E, Skowron K. The influence of stress factors on selected phenotypic and genotypic features of Listeria monocytogenes - a pilot study. BMC Microbiol 2023; 23:259. [PMID: 37716959 PMCID: PMC10504795 DOI: 10.1186/s12866-023-03006-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 09/05/2023] [Indexed: 09/18/2023] Open
Abstract
BACKGROUND Listeria monocytogenes are Gram-positive rods, widespread in the environment due to their wide tolerance to changing conditions. The apilot study aimed to assess the impact of six various stresses (heat, cold, osmotic, acid, alkali, frozen) on phenotypic features: MIC of antibiotics (penicillin, ampicillin, meropenem, erythromycin, co-trimoxazole; gradient stripes), motility, ability to form a biofilm (crystal violet method) and growth rate (OD and quantitative method), expression level of sigB (stress induced regulator of genes), agrA, agrB (associated with biofilm formation) and lmo2230, lmo0596 (acid and alkali stress) (qPCR) for three strains of L. monocytogenes. RESULTS Applied stress conditions contributed to changes in phenotypic features and expression levels of sigB, agrA, agrB, lmo2230 and lmo0596. Stress exposure increased MIC value for penicillin (ATCC 19111 - alkaline stress), ampicillin (472CC - osmotic, acid, alkaline stress), meropenem (strains: 55 C - acid, alkaline, o smotic, frozen stress; 472CC - acid, alkaline stress), erythromycin (strains: 55 C - acid stress; 472CC - acid, alkaline, osmotic stress; ATCC 19111 - osmotic, acid, alkaline, frozen stress), co-trimoxazole (strains: 55 C - acid stress; ATCC 19111 - osmotic, acid, alkaline stress). These changes, however, did not affect antibiotic susceptibility. The strain 472CC (a moderate biofilm former) increased biofilm production after exposure to all stress factors except heat and acid. The ATCC 19111 (a weak producer) formed moderate biofilm under all studied conditions except cold and frozen stress, respectively. The strain 55 C became a strong biofilm producer after exposure to cold and produced a weak biofilm in response to frozen stress. Three tested strains had lower growth rate (compared to the no stress variant) after exposure to heat stress. It has been found that the sigB transcript level increased under alkaline (472CC) stress and the agrB expression increased under cold, osmotic (55 C, 472CC), alkali and frozen (472CC) stress. In contrast, sigB transcript level decreased in response to acid and frozen stress (55 C), lmo2230 transcript level after exposure to acid and alkali stress (ATCC 19111), and lmo0596 transcript level after exposure to acid stress (ATCC 19111). CONCLUSIONS Environmental stress changes the ability to form a biofilm and the MIC values of antibiotics and affect the level of expression of selected genes, which may increase the survival and virulence of L. monocytogenes. Further research on a large L. monocytogenes population is needed to assess the molecular mechanism responsible for the correlation of antibiotic resistance, biofilm formation and resistance to stress factors.
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Affiliation(s)
- Natalia Wiktorczyk-Kapischke
- Department of Microbiology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Toruń, Poland
| | - Ewa Wałecka-Zacharska
- Department of Food Hygiene and Consumer Health, Wrocław University of Environmental and Life Sciences, Wrocław, Poland.
| | - Jakub Korkus
- Department of Food Hygiene and Consumer Health, Wrocław University of Environmental and Life Sciences, Wrocław, Poland
| | - Katarzyna Grudlewska-Buda
- Department of Microbiology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Toruń, Poland
| | - Anna Budzyńska
- Department of Microbiology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Toruń, Poland
| | - Kacper Wnuk
- Department of Theoretical Foundations of Biomedical Sciences and Medical Computer Science, Ludwik Rydygier Collegium Medium in Bydgoszcz, Nicolaus Copernicus University, Toruń, Poland
| | - Eugenia Gospodarek-Komkowska
- Department of Microbiology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Toruń, Poland
| | - Krzysztof Skowron
- Department of Microbiology, Ludwik Rydygier Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University, Toruń, Poland
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Rebelo A, Duarte B, Freitas AR, Peixe L, Antunes P, Novais C. Exploring Peracetic Acid and Acidic pH Tolerance of Antibiotic-Resistant Non-Typhoidal Salmonella and Enterococcus faecium from Diverse Epidemiological and Genetic Backgrounds. Microorganisms 2023; 11:2330. [PMID: 37764174 PMCID: PMC10534362 DOI: 10.3390/microorganisms11092330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/06/2023] [Accepted: 09/13/2023] [Indexed: 09/29/2023] Open
Abstract
Acid stress poses a common challenge for bacteria in diverse environments by the presence of inorganic (e.g., mammals' stomach) or organic acids (e.g., feed additives; acid-based disinfectants). Limited knowledge exists regarding acid-tolerant strains of specific serotypes, clonal lineages, or sources in human/animal pathogens: namely, non-typhoidal Salmonella enterica (NTS) and Enterococcus faecium (Efm). This study evaluated the acidic pH (Mueller-Hinton acidified with HCl) and peracetic acid (PAA) susceptibility of Efm (n = 72) and NTS (n = 60) from diverse epidemiological/genetic backgrounds and with multiple antibiotic resistance profiles. Efm minimum growth/survival pH was 4.5-5.0/3.0-4.0, and for NTS it was 4.0-4.5/3.5-4.0. Efm distribution among acidic pH values showed that only isolates of clade-non-A1 (non-hospital associated) or the food chain were more tolerant to acidic pH compared to clade-A1 (hospital-associated clones) or clinical isolates (p < 0.05). In the case of NTS, multidrug-resistant (MDR) isolates survived better in acidic pH (p < 0.05). The PAA MIC/MBC for Efm was 70-120/80-150 mg/L, and for NTS, it was 50-70/60-100 mg/L. The distribution of Efm among PAA concentrations showed that clade-A1 or MDR strains exhibited higher tolerance than clade-non-A1 or non-MDR ones (p < 0.05). NTS distribution also showed higher tolerance to PAA among non-MDR and clinical isolates than food chain ones (p < 0.05) but there were no differences among different serogroups. This unique study identifies specific NTS or Efm populations more tolerant to acidic pH or PAA, emphasizing the need for further research to tailor controlled measures of public health and food safety within a One Health framework.
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Affiliation(s)
- Andreia Rebelo
- UCIBIO-Applied Molecular Biosciences Unit, Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (A.R.); (B.D.); (A.R.F.); (L.P.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- School of Medicine and Biomedical Sciences (ICBAS), University of Porto, 4050-313 Porto, Portugal
- ESS, Polytechnic of Porto, 4200-072 Porto, Portugal
| | - Bárbara Duarte
- UCIBIO-Applied Molecular Biosciences Unit, Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (A.R.); (B.D.); (A.R.F.); (L.P.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Ana R. Freitas
- UCIBIO-Applied Molecular Biosciences Unit, Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (A.R.); (B.D.); (A.R.F.); (L.P.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- 1H-TOXRUN, One Health Toxicology Research Unit, University Institute of Health Sciences, CESPU, CRL, 4585-116 Gandra, Portugal
| | - Luísa Peixe
- UCIBIO-Applied Molecular Biosciences Unit, Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (A.R.); (B.D.); (A.R.F.); (L.P.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Patrícia Antunes
- UCIBIO-Applied Molecular Biosciences Unit, Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (A.R.); (B.D.); (A.R.F.); (L.P.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- Faculty of Nutrition and Food Sciences, University of Porto, 4150-180 Porto, Portugal
| | - Carla Novais
- UCIBIO-Applied Molecular Biosciences Unit, Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal; (A.R.); (B.D.); (A.R.F.); (L.P.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
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Rodríguez-Melcón C, Esteves A, Carballo J, Alonso-Calleja C, Capita R. Effect of Sodium Nitrite, Nisin and Lactic Acid on the Prevalence and Antibiotic Resistance Patterns of Listeria monocytogenes Naturally Present in Poultry. Foods 2023; 12:3273. [PMID: 37685205 PMCID: PMC10486771 DOI: 10.3390/foods12173273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/09/2023] [Accepted: 08/11/2023] [Indexed: 09/10/2023] Open
Abstract
The impact of treating minced chicken meat with sodium nitrite (SN, 100 ppm), nisin (Ni, 10 ppm) and lactic acid (LA, 3000 ppm) on the levels of some microbial groups indicating hygiene quality were investigated. Specifically, aerobic plate counts and culture-based counts of psychrotrophic microorganisms and enterobacteria were obtained. Additionally, the prevalence of Listeria monocytogenes and the resistance of 245 isolates from this bacterium to 15 antibiotics were documented. L. monocytogenes was isolated using the ISO 11290-1:2017 method and confirmed with polymerase chain reaction using the lmo1030 gene. Antibiotic resistance was established using the disc diffusion technique (EUCAST and CLSI criteria). Twenty-four hours after treatment, the microbial load (log10 cfu/g) was reduced (p < 0.05) relative to controls in those samples treated with LA, with counts of 5.51 ± 1.05 (LA-treated samples) vs. 7.53 ± 1.02 (control) for APC, 5.59 ± 1.14 (LA) vs. 7.13 ± 1.07 (control) for psychrotrophic microorganisms and 2.33 ± 0.51 (LA) vs. 4.23 ± 0.88 (control) for enterobacteria. L. monocytogenes was detected in 70% (control samples), 60% (samples receiving SN), 65% (Ni) and 50% (LA) (p > 0.05) of samples. All strains showed resistance to multiple antimicrobials (between 3 and 12). In all, 225 isolates (91.8%) showed a multi-drug resistant (MDR) phenotype, and one isolate (0.4%) showed an extensively drug-resistant (XDR) phenotype. The mean number of resistances per strain was lower (p < 0.01) in the control samples, at 5.77 ± 1.22, than in those receiving treatment, at 6.39 ± 1.51. It is suggested that the use of food additives might increase the prevalence of resistance to antibiotics in L. monocytogenes, although additional studies would be necessary to verify this finding by analyzing a higher number of samples and different foodstuffs and by increasing the number of antimicrobial compounds and concentrations to be tested.
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Affiliation(s)
- Cristina Rodríguez-Melcón
- Department of Food Hygiene and Technology, Veterinary Faculty, University of León, E-24071 León, Spain
- Institute of Food Science and Technology, University of León, E-24071 León, Spain
| | - Alexandra Esteves
- Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, University of Trás-os-Montes e Alto Douro, 5000-801 Vila Real, Portugal
| | - Javier Carballo
- Area of Food Technology, Faculty of Sciences, University of Vigo, E-32004 Ourense, Spain
| | - Carlos Alonso-Calleja
- Department of Food Hygiene and Technology, Veterinary Faculty, University of León, E-24071 León, Spain
- Institute of Food Science and Technology, University of León, E-24071 León, Spain
| | - Rosa Capita
- Department of Food Hygiene and Technology, Veterinary Faculty, University of León, E-24071 León, Spain
- Institute of Food Science and Technology, University of León, E-24071 León, Spain
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Rodríguez-Melcón C, Serrano-Galán V, Capita R, Alonso-Calleja C. Estimation by flow cytometry of percentages of survival of Listeria monocytogenes cells treated with tetracycline, with or without prior exposure to several biocides. Food Microbiol 2023; 112:104210. [PMID: 36906325 DOI: 10.1016/j.fm.2022.104210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 11/21/2022] [Accepted: 12/20/2022] [Indexed: 12/24/2022]
Abstract
In certain circumstances, disinfectants are used at sublethal concentrations. The aim of this research work was to determine whether contact of Listeria monocytogenes NCTC 11994 with subinhibitory concentrations of three disinfectants widely used in food processing environments and in the health-care system, benzalkonium chloride (BZK), sodium hypochlorite (SHY) and peracetic acid (PAA), can cause the adaptation of the strain to the biocides and increase its resistance to tetracycline (TE). The minimum inhibitory concentrations (MIC; ppm) were 2.0 (BZK), 3500.0 (SHY) and 1050.0 (PAA). On exposure to increasing subinhibitory concentrations of the biocides, the maximum concentrations (ppm) of the compounds that allowed the strain to grow were (ppm) 8.5 (BZK), 3935.5 (SHY) and 1125.0 (PAA). Both the control cells (non-exposed) and the cells that had been in contact with low doses of biocides were treated with different concentrations of TE (0 ppm, 250 ppm, 500 ppm, 750 ppm, 1000 ppm and 1250 ppm) for 24, 48 and 72 h, and the survival percentages determined using flow cytometry, following dying with SYTO 9 and propidium iodide. The cells previously exposed to PAA presented higher survival percentages (P < 0.05) than the rest of the cells for most of the concentrations of TE and treatment times trialled. These results are worrying because TE is sometimes used to treat listeriosis, highlighting the importance of avoiding the use of disinfectant at subinhibitory doses. Furthermore, the findings suggest that flow cytometry is a fast and simple technique to obtain quantitative data on bacterial resistance to antibiotics.
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Affiliation(s)
- Cristina Rodríguez-Melcón
- Departamento de Higiene y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071, León, España; Instituto de Ciencia y Tecnología de los Alimentos (ICTAL), Universidad de León, Calle La Serna 58, 24071, León, España
| | - Víctor Serrano-Galán
- Departamento de Higiene y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071, León, España; Instituto de Ciencia y Tecnología de los Alimentos (ICTAL), Universidad de León, Calle La Serna 58, 24071, León, España
| | - Rosa Capita
- Departamento de Higiene y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071, León, España; Instituto de Ciencia y Tecnología de los Alimentos (ICTAL), Universidad de León, Calle La Serna 58, 24071, León, España
| | - Carlos Alonso-Calleja
- Departamento de Higiene y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad de León, Campus de Vegazana s/n, 24071, León, España; Instituto de Ciencia y Tecnología de los Alimentos (ICTAL), Universidad de León, Calle La Serna 58, 24071, León, España.
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Wu RA, Feng J, Yue M, Liu D, Ding T. Overuse of food-grade disinfectants threatens a global spread of antimicrobial-resistant bacteria. Crit Rev Food Sci Nutr 2023; 64:6870-6879. [PMID: 36756870 DOI: 10.1080/10408398.2023.2176814] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
Abstract
Food-grade disinfectants are extensively used for microbial decontamination of food processing equipment. In recent years, food-grade disinfectants have been increasingly used. However, the overuse of disinfectants causes another major issue, which is the emergence and spread of antimicrobial-resistant bacteria on a global scale. As the ongoing pandemic takes global attention, bacterial infections with antibiotic resistance are another ongoing pandemic that often goes unnoticed and will be the next real threat to humankind. Here, the effects of food-grade disinfectant overuse on the global emergence and spread of antimicrobial-resistant bacteria were reviewed. It was found that longtime exposure to the most common food-grade disinfectants promoted resistance to clinically important antibiotics in pathogenic bacteria, namely cross-resistance. Currently, the use of disinfectants is largely unregulated. The mechanisms of cross-resistance are regulated by intrinsic molecular mechanisms including efflux pumps, DNA repair system, modification of the molecular target, and metabolic adaptation. Cross-resistance can also be acquired by mobile genetic elements. Long-term exposure to disinfectants has an impact on the dissemination of antimicrobial resistance in soil, plants, animals, water, and human gut environments.
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Affiliation(s)
- Ricardo A Wu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Jinsong Feng
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
| | - Min Yue
- College of Animal Sciences, Zhejiang University, Hangzhou, China
| | - Donghong Liu
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
- Ningbo Research Institute, Zhejiang University, Ningbo, China
| | - Tian Ding
- College of Biosystems Engineering and Food Science, Zhejiang University, Hangzhou, China
- Ningbo Research Institute, Zhejiang University, Ningbo, China
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Effect of low doses of biocides on the susceptibility of Listeria monocytogenes and Salmonella enterica to various antibiotics of clinical importance. Food Control 2023. [DOI: 10.1016/j.foodcont.2023.109602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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10
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Quansah J, Gazula H, Liu D, Chen J. Effect of Pre-Exposure to Chlorine Dioxide on the Susceptibility of Fecal Coliforms to Antibiotics. Antibiotics (Basel) 2022; 11:antibiotics11020215. [PMID: 35203817 PMCID: PMC8868535 DOI: 10.3390/antibiotics11020215] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 02/03/2022] [Accepted: 02/04/2022] [Indexed: 12/04/2022] Open
Abstract
Adaptive exposure to sub-lethal concentrations of sanitizers was previously reported to offer cross-protection to bacteria against antibiotics. This study was undertaken to determine whether the pre-exposure of fecal coliforms to suboptimal concentrations of a chemical sanitizer, chlorine dioxide (ClO2), alters their susceptibility to certain antibiotics. Fecal coliforms isolated from fresh fruit packing facilities (n = 12) were adapted in ½ or ¼ of the manufacturer-recommended concentration of ClO2. The susceptibility of the adapted and non-adapted cells to 13 different antibiotics was determined by observing the changes in their minimal inhibitory concentrations (MICs). The results showed that preadaptation to the suboptimal concentrations of ClO2, in general, either decreased or did not change the MICs of the antibiotics against selected fecal coliform isolates, with only two exceptions; preadaptation increased the MICs of kanamycin against two of the fecal coliform isolates, and of nalidixic acid against one of the fecal coliform isolates. The results suggest that the use of ClO2 has a relatively low risk of inducing the resistance of fecal coliforms to antibiotics.
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Affiliation(s)
- Joycelyn Quansah
- Department of Food Science and Technology, The University of Georgia, Griffin, GA 30223-1797, USA; (J.Q.); (H.G.); (D.L.)
- Department of Nutrition and Food Science, University of Ghana, Legon P.O. Box LG 134, Ghana
| | - Himabindu Gazula
- Department of Food Science and Technology, The University of Georgia, Griffin, GA 30223-1797, USA; (J.Q.); (H.G.); (D.L.)
| | - Da Liu
- Department of Food Science and Technology, The University of Georgia, Griffin, GA 30223-1797, USA; (J.Q.); (H.G.); (D.L.)
| | - Jinru Chen
- Department of Food Science and Technology, The University of Georgia, Griffin, GA 30223-1797, USA; (J.Q.); (H.G.); (D.L.)
- Correspondence:
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11
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Low-Level Tolerance to Fluoroquinolone Antibiotic Ciprofloxacin in QAC-Adapted Subpopulations of Listeria monocytogenes. Microorganisms 2021; 9:microorganisms9051052. [PMID: 34068252 PMCID: PMC8153124 DOI: 10.3390/microorganisms9051052] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 05/09/2021] [Accepted: 05/10/2021] [Indexed: 12/20/2022] Open
Abstract
There was a development of low-level tolerance to fluoroquinolone antibiotic ciprofloxacin in Listeria monocytogenes after sublethal adaptation to quaternary ammonium compound (QAC). Using eight L. monocytogenes strains, we determined the changes in short-range MIC, growth rate, and survival for heterologous stress response to ciprofloxacin, after sublethal exposure to daily cycles of fixed or gradually increasing concentration of QAC. Three main findings were observed. (1) MIC increase—QAC-adapted subpopulations exhibited a significant increase in short-range MIC of ciprofloxacin, by 1.5 to 2.9 fold, as compared to non-adapted control for 4/8 strains (p < 0.05). (2) Growth rate increase—QAC-adapted subpopulations exhibited significant 2.1- to 6.8- fold increase in growth rate (OD600 at 10 h) in ciprofloxacin-containing broth, as compared to non-adapted control for 5/8 strains (p < 0.05). (3) Survival increase—QAC-adapted subpopulations of L. monocytogenes yielded significantly higher survival in ciprofloxacin-containing agar by 2.2 to 4.3 log CFU/mL for 4/8 strains, as compared to non-adapted control (p ˂ 0.05). However, for other 4/8 strains of L. monocytogenes, there was no increase in survival of QAC-adapted subpopulations, as compared to non-adapted control in ciprofloxacin. These findings suggest the potential formation of low-level ciprofloxacin-tolerant subpopulations in some L. monocytogenes strains when exposed to residual QAC concentrations (where QAC might be used widely) and such cells if not inactivated might create food safety risk.
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Keet R, Rip D. Listeria monocytogenes isolates from Western Cape, South Africa exhibit resistance to multiple antibiotics and contradicts certain global resistance patterns. AIMS Microbiol 2021; 7:40-58. [PMID: 33659768 PMCID: PMC7921373 DOI: 10.3934/microbiol.2021004] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 01/04/2021] [Indexed: 01/21/2023] Open
Abstract
Food-borne disease outbreaks are common and offer valuable insights into the causes, impacts, and mechanisms underlying food pathogens. This also serves as a good foundation to validate the performance of current best practice control methods, for example antibiotics, that are used in the fight against food pathogens. Listeriosis outbreaks, caused by Listeria monocytogenes, is no exception. In 2018, South Africa experienced the largest global listeriosis outbreak recorded to date. However, despite the scale of this outbreak, information on the bacterium and its resistance towards antibiotics is still severely lacking. Furthermore, until now it remained to be determined whether L. monocytogenes antibiotic resistance patterns in South Africa mirror resistance patterns elsewhere in the world. The aim of this study was therefore to evaluate the efficacy of antibiotics that are currently used against L. monocytogenes. Using the European Committee on Antimicrobial Susceptibility Testing (EUCAST) disc diffusion method, L. monocytogenes isolates (n = 177) from diverse origins in the Western Cape, South Africa (clinical, food, and environment) were tested for susceptibility against five different antibiotics, namely ampicillin, erythromycin, chloramphenicol, gentamicin, and tetracycline. Isolates were collected over a period of two years (2017-2019). All isolates were susceptible to ampicillin, the currently recommended antibiotic, while a large number of isolates were resistant to chloramphenicol, erythromycin, and tetracycline. Also, patterns of resistance observed here are different to patterns observed elsewhere. The findings of this study demonstrate that it is imperative to continuously monitor the efficacy of currently recommended antibiotics, since resistance patterns can quickly develop when such antibiotics are overutilized, and secondly, that it is crucial to assess local antibiotic resistance patterns in conjunction with global patterns, since the latter is not necessarily generalizable to local scales.
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Affiliation(s)
| | - Diane Rip
- Department of Food Science, Centre for Food Safety, Stellenbosch University, South Africa
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13
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Rhouma M, Romero-Barrios P, Gaucher ML, Bhachoo S. Antimicrobial resistance associated with the use of antimicrobial processing aids during poultry processing operations: cause for concern? Crit Rev Food Sci Nutr 2020; 61:3279-3296. [PMID: 32744054 DOI: 10.1080/10408398.2020.1798345] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Antimicrobial resistance has become a global issue and a threat to human and animal health. Contamination of poultry carcasses with meat-borne pathogens represents both an economic and a public health concern. The use of antimicrobial processing aids (APA) during poultry processing has contributed to an improvement in the microbiological quality of poultry carcasses. However, the extensive use of these decontaminants has raised concerns about their possible role in the co-selection of antibiotic-resistant bacteria. This topic is presented in the current review to provide an update on the information related to bacterial adaptation to APA used in poultry processing establishments, and to discuss the relationship between APA bacterial adaptation and the acquisition of a new resistance phenotype to therapeutic antimicrobials by bacteria. Common mechanisms such as active efflux and changes in membrane fluidity are the most documented mechanisms responsible for bacterial cross-resistance to APA and antimicrobials. Although most studies reported a bacterial resistance to antibiotics not reaching a clinical level, the under-exposure of bacteria to APA remains a concern in the poultry industry. Further research is needed to determine if APA used during poultry processing and therapeutic antimicrobials share common sites of action in bacteria and encounter similar mechanisms of resistance.
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Affiliation(s)
- Mohamed Rhouma
- Canadian Food Inspection Agency, St-Hyacinthe, Quebec, Canada
| | | | - Marie-Lou Gaucher
- Department of Pathology and Microbiology, Faculty of Veterinary Medicine, Université de Montréal, Quebec, Canada
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Maertens H, Van Coillie E, Millet S, Van Weyenberg S, Sleeckx N, Meyer E, Zoons J, Dewulf J, De Reu K. Repeated disinfectant use in broiler houses and pig nursery units does not affect disinfectant and antibiotic susceptibility in Escherichia coli field isolates. BMC Vet Res 2020; 16:140. [PMID: 32423466 PMCID: PMC7236461 DOI: 10.1186/s12917-020-02342-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 04/22/2020] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Disinfectants are frequently used in animal production to reduce or eliminate the load of infectious agents and parasites in buildings and equipment associated with the housing or transportation of animals. There are growing concerns that the use of disinfectants would select for resistance to antibiotics and disinfectants. The aim of this study was to determine the effect of repeated use of different disinfectants on the disinfectant and antibiotic susceptibility under practical conditions in a broiler and pig pilot farm. Therefore, the susceptibility of Escherichia coli (E. coli) to 14 antibiotics and 4 disinfectants was monitored over a one-year period. RESULTS High (20-50%) to very high (> 50%) resistance levels for ampicillin, sulfamethoxazole, trimethoprim and tetracycline were observed in both animal production types. Disinfectant susceptibility did not change over time and did not depend on the used disinfection product. Compared to in-use concentrations of formaldehyde, benzalkoniumchloride and a peracetic acid - hydrogen peroxide formulation, all E. coli strains remained susceptible indicating that the use of disinfectants did not select for disinfectant resistance. Moreover, no association could be found between the use of disinfectants and antibiotic resistance. CONCLUSIONS These findings suggest that repeated use of disinfectants in agricultural environments does not select for antibiotic resistance nor does it reduce disinfectant susceptibility.
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Affiliation(s)
- H Maertens
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Technology and Food Science Unit, Brusselsesteenweg 370, 9090, Melle, Belgium
| | - E Van Coillie
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Technology and Food Science Unit, Brusselsesteenweg 370, 9090, Melle, Belgium
| | - S Millet
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Technology and Food Science Unit, Brusselsesteenweg 370, 9090, Melle, Belgium
| | - S Van Weyenberg
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Technology and Food Science Unit, Brusselsesteenweg 370, 9090, Melle, Belgium
| | - N Sleeckx
- Experimental Poultry Center (EPC), Poiel 77, 2440, Geel, Belgium
| | - E Meyer
- Veterinary Biochemistry Unit, Department of Pharmacology, Toxicology and Biochemistry, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - J Zoons
- Experimental Poultry Center (EPC), Poiel 77, 2440, Geel, Belgium
| | - J Dewulf
- Veterinary Epidemiology Unit, Department of Reproduction, Obstetrics and Herd Health, Faculty of Veterinary Medicine, Ghent University, Salisburylaan 133, 9820, Merelbeke, Belgium
| | - K De Reu
- Flanders Research Institute for Agriculture, Fisheries and Food (ILVO), Technology and Food Science Unit, Brusselsesteenweg 370, 9090, Melle, Belgium.
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15
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Bennani H, Mateus A, Mays N, Eastmure E, Stärk KDC, Häsler B. Overview of Evidence of Antimicrobial Use and Antimicrobial Resistance in the Food Chain. Antibiotics (Basel) 2020; 9:E49. [PMID: 32013023 PMCID: PMC7168130 DOI: 10.3390/antibiotics9020049] [Citation(s) in RCA: 81] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 01/25/2020] [Accepted: 01/27/2020] [Indexed: 01/06/2023] Open
Abstract
Antimicrobial resistance (AMR) is a global health problem. Bacteria carrying resistance genes can be transmitted between humans, animals and the environment. There are concerns that the widespread use of antimicrobials in the food chain constitutes an important source of AMR in humans, but the extent of this transmission is not well understood. The aim of this review is to examine published evidence on the links between antimicrobial use (AMU) in the food chain and AMR in people and animals. The evidence showed a link between AMU in animals and the occurrence of resistance in these animals. However, evidence of the benefits of a reduction in AMU in animals on the prevalence of resistant bacteria in humans is scarce. The presence of resistant bacteria is documented in the human food supply chain, which presents a potential exposure route and risk to public health. Microbial genome sequencing has enabled the establishment of some links between the presence of resistant bacteria in humans and animals but, for some antimicrobials, no link could be established. Research and monitoring of AMU and AMR in an integrated manner is essential for a better understanding of the biology and the dynamics of antimicrobial resistance.
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Affiliation(s)
- Houda Bennani
- Veterinary Epidemiology, Economics and Public Health Group, Department of Pathobiology and Population Sciences, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire AL9 7TA, UK; (A.M.); (K.D.C.S.); (B.H.)
| | - Ana Mateus
- Veterinary Epidemiology, Economics and Public Health Group, Department of Pathobiology and Population Sciences, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire AL9 7TA, UK; (A.M.); (K.D.C.S.); (B.H.)
| | - Nicholas Mays
- Policy Innovation Research Unit, Department of Health Services Research & Policy, London School of Hygiene and Tropical Medicine, London WC1H 9SH, UK; (N.M.); (E.E.)
| | - Elizabeth Eastmure
- Policy Innovation Research Unit, Department of Health Services Research & Policy, London School of Hygiene and Tropical Medicine, London WC1H 9SH, UK; (N.M.); (E.E.)
| | - Katharina D. C. Stärk
- Veterinary Epidemiology, Economics and Public Health Group, Department of Pathobiology and Population Sciences, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire AL9 7TA, UK; (A.M.); (K.D.C.S.); (B.H.)
- SAFOSO AG, Waldeggstrasse 1, CH 3097 Liebefeld, Switzerland
| | - Barbara Häsler
- Veterinary Epidemiology, Economics and Public Health Group, Department of Pathobiology and Population Sciences, Royal Veterinary College, Hawkshead Lane, North Mymms, Hatfield, Hertfordshire AL9 7TA, UK; (A.M.); (K.D.C.S.); (B.H.)
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16
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Capita R, Vicente-Velasco M, Rodríguez-Melcón C, García-Fernández C, Carballo J, Alonso-Calleja C. Effect of low doses of biocides on the antimicrobial resistance and the biofilms of Cronobacter sakazakii and Yersinia enterocolitica. Sci Rep 2019; 9:15905. [PMID: 31685860 PMCID: PMC6828698 DOI: 10.1038/s41598-019-51907-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 10/10/2019] [Indexed: 12/30/2022] Open
Abstract
The susceptibility of Cronobacter sakazakii ATCC 29544 (CS) and Yersinia enterocolitica ATCC 9610 (YE) to sodium hypochlorite (10% of active chlorine; SHY), peracetic acid (39% solution of peracetic acid in acetic acid; PAA) and benzalkonium chloride (BZK) was tested. Minimum inhibitory concentration (MIC) values (planktonic cells; microdilution broth method) of 3,800 ppm (SHY), 1,200 ppm (PAA) and 15 ppm (BZK) for CS, and 2,500 ppm (SHY), 1,275 ppm (PAA) and 20 ppm (BZK) for YE, were found. In some instances, an increase in growth rate was observed in presence of sub-MICs (0.25MIC, 0.50MIC or 0.75MIC) of biocides relative to the samples without biocides. The cultures exhibited an acquired tolerance to biocides and an increase in antibiotic resistance after exposure to sub-MICs of such disinfectants. Strains were able to form strong biofilms on polystyrene after 48 hours (confocal laser scanning microscopy), with average biovolumes in the observation field (14,161 µm2) of 242,201.0 ± 86,570.9 µm3 (CS) and 190,184.5 ± 40,860.3 µm3 (YE). Treatment of biofilms for 10 minutes with disinfectants at 1MIC or 2MIC reduced the biovolume of live cells. PAA (YE) and BZK (CS and YE) at 1MIC did not alter the percentage of dead cells relative to non-exposed biofilms, and their effect of countering biofilm was due principally to the detachment of cells. These results suggest that doses of PAA and BZK close to MICs might lead to the dissemination of live bacteria from biofilms with consequent hazards for public health.
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Affiliation(s)
- Rosa Capita
- Department of Food Hygiene and Technology, Veterinary Faculty, University of León, E-24071, León, Spain
- Institute of Food Science and Technology, University of León, E-24071, León, Spain
| | - María Vicente-Velasco
- Department of Food Hygiene and Technology, Veterinary Faculty, University of León, E-24071, León, Spain
- Institute of Food Science and Technology, University of León, E-24071, León, Spain
| | - Cristina Rodríguez-Melcón
- Department of Food Hygiene and Technology, Veterinary Faculty, University of León, E-24071, León, Spain
- Institute of Food Science and Technology, University of León, E-24071, León, Spain
| | - Camino García-Fernández
- Department of Food Hygiene and Technology, Veterinary Faculty, University of León, E-24071, León, Spain
- Institute of Food Science and Technology, University of León, E-24071, León, Spain
| | - Javier Carballo
- Area of Food Technology, University of Vigo, E-32004, Ourense, Spain
| | - Carlos Alonso-Calleja
- Department of Food Hygiene and Technology, Veterinary Faculty, University of León, E-24071, León, Spain.
- Institute of Food Science and Technology, University of León, E-24071, León, Spain.
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17
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18
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Abstract
Biocides and formulated biocides are used worldwide for an increasing number of applications despite tightening regulations in Europe and in the United States. One concern is that such intense usage of biocides could lead to increased bacterial resistance to a product and cross-resistance to unrelated antimicrobials including chemotherapeutic antibiotics. Evidence to justify such a concern comes mostly from the use of health care-relevant bacterial isolates, although the number of studies of the resistance characteristics of veterinary isolates to biocides have increased the past few years. One problem remains the definition of "resistance" and how to measure resistance to a biocide. This has yet to be addressed globally, although the measurement of resistance is becoming more pressing, with regulators both in Europe and in the United States demanding that manufacturers provide evidence that their biocidal products will not impact on bacterial resistance. Alongside in vitro evidence of potential antimicrobial cross-resistance following biocide exposure, our understanding of the mechanisms of bacterial resistance and, more recently, our understanding of the effect of biocides to induce a mechanism(s) of resistance in bacteria has improved. This article aims to provide an understanding of the development of antimicrobial resistance in bacteria following a biocide exposure. The sections provide evidence of the occurrence of bacterial resistance and its mechanisms of action and debate how to measure bacterial resistance to biocides. Examples pertinent to the veterinary field are used where appropriate.
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19
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Olaimat AN, Al-Holy MA, Shahbaz HM, Al-Nabulsi AA, Abu Ghoush MH, Osaili TM, Ayyash MM, Holley RA. Emergence of Antibiotic Resistance in Listeria monocytogenes Isolated from Food Products: A Comprehensive Review. Compr Rev Food Sci Food Saf 2018; 17:1277-1292. [PMID: 33350166 DOI: 10.1111/1541-4337.12387] [Citation(s) in RCA: 114] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 04/07/2018] [Accepted: 06/07/2018] [Indexed: 12/12/2022]
Abstract
Listeria monocytogenes is an opportunistic pathogen that has been involved in several deadly illness outbreaks. Future outbreaks may be more difficult to manage because of the emergence of antibiotic resistance among L. monocytogenes strains isolated from food products. The present review summarizes the available evidence on the emergence of antibiotic resistance among L. monocytogenes strains isolated from food products and the possible ways this resistance has developed. Furthermore, the resistance of food L. monocytogenes isolates to antibiotics currently used in the treatment of human listeriosis such as penicillin, ampicillin, tetracycline, and gentamicin, has been documented. Acquisition of movable genetic elements is considered the major mechanism of antibiotic resistance development in L. monocytogenes. Efflux pumps have also been linked with resistance of L. monocytogenes to some antibiotics including fluoroquinolones. Some L. monocytogenes strains isolated from food products are intrinsically resistant to several antibiotics. However, factors in food processing chains and environments (from farm to table) including extensive or sub-inhibitory antibiotics use, horizontal gene transfer, exposure to environmental stresses, biofilm formation, and presence of persister cells play crucial roles in the development of antibiotic resistance by L. monocytogenes.
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Affiliation(s)
- Amin N Olaimat
- Dept. of Clinical Nutrition and Dietetics, Faculty of Allied Health Sciences, Hashemite Univ., P.O. Box 150459, Zarqa, 13115, Jordan
| | - Murad A Al-Holy
- Dept. of Clinical Nutrition and Dietetics, Faculty of Allied Health Sciences, Hashemite Univ., P.O. Box 150459, Zarqa, 13115, Jordan
| | - Hafiz M Shahbaz
- Dept. of Food Science and Human Nutrition, Univ. of Veterinary and Animal Sciences, Lahore, 54000, Pakistan
| | - Anas A Al-Nabulsi
- Dept. of Nutrition and Food Technology, Jordan Univ. of Science and Technology, P.O. Box 3030, Irbid, Jordan
| | - Mahmoud H Abu Ghoush
- Dept. of Clinical Nutrition and Dietetics, Faculty of Allied Health Sciences, Hashemite Univ., P.O. Box 150459, Zarqa, 13115, Jordan
| | - Tareq M Osaili
- Dept. of Nutrition and Food Technology, Jordan Univ. of Science and Technology, P.O. Box 3030, Irbid, Jordan.,Dept. of Clinical Nutrition and Dietetics, College of Health Sciences, Univ. of Sharjah, Sharjah, United Arab Emirates
| | - Mutamed M Ayyash
- Dept. of Food Science, United Arab Emirates Univ., Al Ain, United Arab Emirates
| | - Richard A Holley
- Dept. of Food and Human Nutritional Sciences, Faculty of Agricultural and Food Sciences, Univ. of Manitoba, Winnipeg, Manitoba, R3T 2N2, Canada
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20
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Obe T, Nannapaneni R, Sharma CS, Kiess A. Homologous stress adaptation, antibiotic resistance, and biofilm forming ability of Salmonella enterica serovar Heidelberg ATCC8326 on different food-contact surfaces following exposure to sublethal chlorine concentrations. Poult Sci 2018; 97:951-961. [DOI: 10.3382/ps/pex346] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Indexed: 01/27/2023] Open
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21
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Ferri M, Ranucci E, Romagnoli P, Giaccone V. Antimicrobial resistance: A global emerging threat to public health systems. Crit Rev Food Sci Nutr 2018; 57:2857-2876. [PMID: 26464037 DOI: 10.1080/10408398.2015.1077192] [Citation(s) in RCA: 460] [Impact Index Per Article: 76.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Antimicrobial resistance (AMR) became in the last two decades a global threat to public health systems in the world. Since the antibiotic era, with the discovery of the first antibiotics that provided consistent health benefits to human medicine, the misuse and abuse of antimicrobials in veterinary and human medicine have accelerated the growing worldwide phenomenon of AMR. This article presents an extensive overview of the epidemiology of AMR, with a focus on the link between food producing-animals and humans and on the legal framework and policies currently implemented at the EU level and globally. The ways of responding to the AMR challenges foresee an array of measures that include: designing more effective preventive measures at farm level to reduce the use of antimicrobials; development of novel antimicrobials; strengthening of AMR surveillance system in animal and human populations; better knowledge of the ecology of resistant bacteria and resistant genes; increased awareness of stakeholders on the prudent use of antibiotics in animal productions and clinical arena; and the public health and environmental consequences of AMR. Based on the global nature of AMR and considering that bacterial resistance does not recognize barriers and can spread to people and the environment, the article ends with specific recommendations structured around a holistic approach and targeted to different stakeholders.
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Affiliation(s)
| | | | | | - Valerio Giaccone
- d Department of Animal Medicine , Veterinary School, Padua University , Padua , Italy
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22
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Gadea R, Glibota N, Pérez Pulido R, Gálvez A, Ortega E. Effects of exposure to biocides on susceptibility to essential oils and chemical preservatives in bacteria from organic foods. Food Control 2017. [DOI: 10.1016/j.foodcont.2017.05.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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23
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Fernández Márquez ML, Grande Burgos MJ, López Aguayo MC, Pérez Pulido R, Gálvez A, Lucas R. Characterization of biocide-tolerant bacteria isolated from cheese and dairy small-medium enterprises. Food Microbiol 2017; 62:77-81. [DOI: 10.1016/j.fm.2016.10.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 06/07/2016] [Accepted: 10/02/2016] [Indexed: 10/20/2022]
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24
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The Biocide and Antibiotic Resistance in Campylobacter jejuni and Campylobacter coli. FOOD ENGINEERING SERIES 2016. [DOI: 10.1007/978-3-319-24040-4_15] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
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25
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Co-Selection of Resistance to Antibiotics, Biocides and Heavy Metals, and Its Relevance to Foodborne Pathogens. Antibiotics (Basel) 2015; 4:567-604. [PMID: 27025641 PMCID: PMC4790313 DOI: 10.3390/antibiotics4040567] [Citation(s) in RCA: 217] [Impact Index Per Article: 24.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 11/05/2015] [Accepted: 11/06/2015] [Indexed: 02/07/2023] Open
Abstract
Concerns have been raised in recent years regarding co-selection for antibiotic resistance among bacteria exposed to biocides used as disinfectants, antiseptics and preservatives, and to heavy metals (particularly copper and zinc) used as growth promoters and therapeutic agents for some livestock species. There is indeed experimental and observational evidence that exposure to these non-antibiotic antimicrobial agents can induce or select for bacterial adaptations that result in decreased susceptibility to one or more antibiotics. This may occur via cellular mechanisms that are protective across multiple classes of antimicrobial agents or by selection of genetic determinants for resistance to non-antibiotic agents that are linked to genes for antibiotic resistance. There may also be relevant effects of these antimicrobial agents on bacterial community structure and via non-specific mechanisms such as mobilization of genetic elements or mutagenesis. Notably, some co-selective adaptations have adverse effects on fitness in the absence of a continued selective pressure. The present review examines the evidence for the significance of these phenomena, particularly in respect of bacterial zoonotic agents that commonly occur in livestock and that may be transmitted, directly or via the food chain, to human populations.
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26
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Effects of osmotic pressure, acid, or cold stresses on antibiotic susceptibility of Listeria monocytogenes. Food Microbiol 2015; 46:154-160. [DOI: 10.1016/j.fm.2014.07.015] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 07/12/2014] [Accepted: 07/18/2014] [Indexed: 11/22/2022]
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Manios SG, Grivokostopoulos NC, Bikouli VC, Doultsos DA, Zilelidou EA, Gialitaki MA, Skandamis PN. A 3-year hygiene and safety monitoring of a meat processing plant which uses raw materials of global origin. Int J Food Microbiol 2014; 209:60-9. [PMID: 25600954 DOI: 10.1016/j.ijfoodmicro.2014.12.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2014] [Revised: 12/09/2014] [Accepted: 12/23/2014] [Indexed: 01/08/2023]
Abstract
A systematic approach in monitoring the hygiene of a meat processing plant using classical microbiological analyses combined with molecular characterization tools may assist in the safety of the final products. This study aimed: (i) to evaluate the total hygiene level and, (ii) to monitor and characterize the occurrence and spread of Salmonella spp. and Listeria monocytogenes in the environment and the final products of a meat industry that processes meat of global origin. In total, 2541 samples from the processing environment, the raw materials, and the final products were collected from a Greek meat industry in the period 2011-2013. All samples were subjected to enumeration of total viable counts (TVC), Escherichia coli (EC) and total coliforms (TCC) and the detection of Salmonella spp., while 709 of these samples were also analyzed for the presence L. monocytogenes. Pathogen isolates were serotyped and further characterized for their antibiotic resistance and subtyped by PFGE. Raw materials were identified as the primary source of contamination, while improper handling might have also favored the proliferation of the initial microbial load. The occurrence of Salmonella spp. and L. monocytogenes reached 5.5% and 26.9%, respectively. Various (apparent) cross-contamination or persistence trends were deduced based on PFGE analysis results. Salmonella isolates showed wide variation in their innate antibiotic resistance, contrary to L. monocytogenes ones, which were found susceptible to all antibiotics except for cefotaxime. The results emphasize the biodiversity of foodborne pathogens in a meat industry and may be used by meat processors to understand the spread of pathogens in the processing environment, as well as to assist the Food Business Operator (FBO) in establishing effective criteria for selection of raw materials and in improving meat safety and quality. This approach can limit the increase of microbial contamination during the processing steps observed in our study as well as the cross contamination of meat products.
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Affiliation(s)
- Stavros G Manios
- Agricultural University of Athens, Department of Food Science & Technology, Laboratory of Food Hygiene and Quality Control, Iera Odos 75, Athens 11855, Greece
| | - Nikolaos C Grivokostopoulos
- Agricultural University of Athens, Department of Food Science & Technology, Laboratory of Food Hygiene and Quality Control, Iera Odos 75, Athens 11855, Greece
| | - Vasiliki C Bikouli
- Agricultural University of Athens, Department of Food Science & Technology, Laboratory of Food Hygiene and Quality Control, Iera Odos 75, Athens 11855, Greece
| | - Dimitrios A Doultsos
- Agricultural University of Athens, Department of Food Science & Technology, Laboratory of Food Hygiene and Quality Control, Iera Odos 75, Athens 11855, Greece
| | - Evangelia A Zilelidou
- Agricultural University of Athens, Department of Food Science & Technology, Laboratory of Food Hygiene and Quality Control, Iera Odos 75, Athens 11855, Greece
| | - Maria A Gialitaki
- Agricultural University of Athens, Department of Food Science & Technology, Laboratory of Food Hygiene and Quality Control, Iera Odos 75, Athens 11855, Greece
| | - Panagiotis N Skandamis
- Agricultural University of Athens, Department of Food Science & Technology, Laboratory of Food Hygiene and Quality Control, Iera Odos 75, Athens 11855, Greece.
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Biocide and antibiotic susceptibility of Salmonella isolates obtained before and after cleaning at six Danish pig slaughterhouses. Int J Food Microbiol 2014; 181:53-9. [DOI: 10.1016/j.ijfoodmicro.2014.04.021] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Revised: 03/19/2014] [Accepted: 04/18/2014] [Indexed: 11/22/2022]
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Molina-González D, Alonso-Calleja C, Alonso-Hernando A, Capita R. Effect of sub-lethal concentrations of biocides on the susceptibility to antibiotics of multi-drug resistant Salmonella enterica strains. Food Control 2014. [DOI: 10.1016/j.foodcont.2013.11.046] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Fernández Fuentes MÁ, Ortega Morente E, Abriouel H, Pérez Pulido R, Gálvez A. Antimicrobial resistance determinants in antibiotic and biocide-resistant gram-negative bacteria from organic foods. Food Control 2014. [DOI: 10.1016/j.foodcont.2013.08.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Zanini SF, Silva-Angulo AB, Rosenthal A, Aliaga DR, Martínez A. Influence of the treatment of Listeria monocytogenes and Salmonella enterica serovar Typhimurium with citral on the efficacy of various antibiotics. Foodborne Pathog Dis 2014; 11:265-71. [PMID: 24494856 DOI: 10.1089/fpd.2013.1635] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
Abstract
The main goal of this work was to study the bacterial adaptive responses to antibiotics induced by sublethal concentration of citral on first-and second-generation cells of Listeria monocytogenes serovar 4b (CECT 4032) and Salmonella enterica serovar Typhimurium (CECT 443). The first-generation cells were not pretreated with citral, while the second-generation cells were obtained from cells previously exposed to citral during 5 h. The trials were conducted at 37°C. The presence of citral in the culture medium and the antibiotic strips resulted in a reduced minimum inhibitory concentration (MIC) for the first-generation cells of Listeria monocytogenes serovar 4b and Salmonella Typhimurium. This result was observed for almost all the antibiotics, compared with the same microorganisms of the control group (without citral), which could represent an additive effect. For Listeria serovar 4b, the second-generation cells of the test group maintained the same susceptibility to antibiotics compared with cells in the control group and in the test group of the first generation. The second-generation cells of the control group indicated that the Salmonella Typhimurium maintained the same sensitivity to the antibiotics tested compared with the first generation of this group, except in the case of erythromycin, which exhibited an increased MIC value. With respect to the second-generation cells of Salmonella Typhimurium, the presence of citral determined a decrease in the antibiotic susceptibility for almost all of the antibiotics, except colistin, compared with the first-generation of the test group, which can be seen by increase of MIC values. In conclusion, the presence of citral in the culture medium of Listeria 4b and Salmonella Typhimurium increased the antibiotic susceptibility of the first generations, while we observed an increase in antibiotic resistance in the second generation of Salmonella Typhimurium.
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Affiliation(s)
- Surama F Zanini
- 1 Department of Veterinary Medicine, Espirito Santo Federal University , Alegre, Brazil
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33
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Capita R, Riesco-Peláez F, Alonso-Hernando A, Alonso-Calleja C. Exposure of Escherichia coli ATCC 12806 to sublethal concentrations of food-grade biocides influences its ability to form biofilm, resistance to antimicrobials, and ultrastructure. Appl Environ Microbiol 2014; 80:1268-80. [PMID: 24317080 PMCID: PMC3911067 DOI: 10.1128/aem.02283-13] [Citation(s) in RCA: 81] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Accepted: 12/02/2013] [Indexed: 11/20/2022] Open
Abstract
Escherichia coli ATCC 12806 was exposed to increasing subinhibitory concentrations of three biocides widely used in food industry facilities: trisodium phosphate (TSP), sodium nitrite (SNI), and sodium hypochlorite (SHY). The cultures exhibited an acquired tolerance to biocides (especially to SNI and SHY) after exposure to such compounds. E. coli produced biofilms (as observed by confocal laser scanning microscopy) on polystyrene microtiter plates. Previous adaptation to SNI or SHY enhanced the formation of biofilms (with an increase in biovolume and surface coverage) both in the absence and in the presence (MIC/2) of such compounds. TSP reduced the ability of E. coli to produce biofilms. The concentration of suspended cells in the culture broth in contact with the polystyrene surfaces did not influence the biofilm structure. The increase in cell surface hydrophobicity (assessed by a test of microbial adhesion to solvents) after contact with SNI or SHY appeared to be associated with a strong capacity to form biofilms. Cultures exposed to biocides displayed a stable reduced susceptibility to a range of antibiotics (mainly aminoglycosides, cephalosporins, and quinolones) compared with cultures that were not exposed. SNI caused the greatest increase in resistances (14 antibiotics [48.3% of the total tested]) compared with TSP (1 antibiotic [3.4%]) and SHY (3 antibiotics [10.3%]). Adaptation to SHY involved changes in cell morphology (as observed by scanning electron microscopy) and ultrastructure (as observed by transmission electron microscopy) which allowed this bacterium to persist in the presence of severe SHY challenges. The findings of the present study suggest that the use of biocides at subinhibitory concentrations could represent a public health risk.
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Affiliation(s)
- Rosa Capita
- Department of Food Hygiene and Food Technology, University of León, León, Spain
| | - Félix Riesco-Peláez
- Department of Electrical Engineering and Systems Engineering and Automatic Control, University of León, León, Spain
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Capita R, Alonso-Calleja C. Antibiotic-resistant bacteria: a challenge for the food industry. Crit Rev Food Sci Nutr 2013; 53:11-48. [PMID: 23035919 DOI: 10.1080/10408398.2010.519837] [Citation(s) in RCA: 229] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Antibiotic-resistant bacteria were first described in the 1940s, but whereas new antibiotics were being discovered at a steady rate, the consequences of this phenomenon were slow to be appreciated. At present, the paucity of new antimicrobials coming into the market has led to the problem of antibiotic resistance fast escalating into a global health crisis. Although the selective pressure exerted by the use of antibiotics (particularly overuse or misuse) has been deemed the major factor in the emergence of bacterial resistance to these antimicrobials, concerns about the role of the food industry have been growing in recent years and have been raised at both national and international levels. The selective pressure exerted by the use of antibiotics (primary production) and biocides (e.g., disinfectants, food and feed preservatives, or decontaminants) is the main driving force behind the selection and spread of antimicrobial resistance throughout the food chain. Genetically modified (GM) crops with antibiotic resistance marker genes, microorganisms added intentionally to the food chain (probiotic or technological) with potentially transferable antimicrobial resistance genes, and food processing technologies used at sub-lethal doses (e.g., alternative non-thermal treatments) are also issues for concern. This paper presents the main trends in antibiotic resistance and antibiotic development in recent decades, as well as their economic and health consequences, current knowledge concerning the generation, dissemination, and mechanisms of antibacterial resistance, progress to date on the possible routes for emergence of resistance throughout the food chain and the role of foods as a vehicle for antibiotic-resistant bacteria. The main approaches to prevention and control of the development, selection, and spread of antibacterial resistance in the food industry are also addressed.
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Affiliation(s)
- Rosa Capita
- Department of Food Hygiene and Food Technology, Veterinary Faculty, University of León, Spain.
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35
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Biocide tolerance in bacteria. Int J Food Microbiol 2013; 162:13-25. [PMID: 23340387 DOI: 10.1016/j.ijfoodmicro.2012.12.028] [Citation(s) in RCA: 150] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Revised: 10/24/2012] [Accepted: 12/15/2012] [Indexed: 02/07/2023]
Abstract
Biocides have been employed for centuries, so today a wide range of compounds showing different levels of antimicrobial activity have become available. At the present time, understanding the mechanisms of action of biocides has also become an important issue with the emergence of bacterial tolerance to biocides and the suggestion that biocide and antibiotic resistance in bacteria might be linked. While most of the mechanisms providing antibiotic resistance are agent specific, providing resistance to a single antimicrobial or class of antimicrobial, there are currently numerous examples of efflux systems that accommodate and, thus, provide tolerance to a broad range of structurally unrelated antimicrobials, both antibiotics and biocides. If biocide tolerance becomes increasingly common and it is linked to antibiotic resistance, not only resistant (even multi-resistant) bacteria could be passed along the food chain, but also there are resistance determinants that can spread and lead to the emergence of new resistant microorganisms, which can only be detected and monitored when the building blocks of resistance traits are understood on the molecular level. This review summarizes the main advances reached in understanding the mechanism of action of biocides, the mechanisms of bacterial resistance to both biocides and antibiotics, and the incidence of biocide tolerance in bacteria of concern to human health and the food industry.
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Capita R, Alvarez-Fernández E, Fernández-Buelta E, Manteca J, Alonso-Calleja C. Decontamination treatments can increase the prevalence of resistance to antibiotics of Escherichia coli naturally present on poultry. Food Microbiol 2012; 34:112-7. [PMID: 23498186 DOI: 10.1016/j.fm.2012.11.011] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2012] [Revised: 11/08/2012] [Accepted: 11/20/2012] [Indexed: 11/19/2022]
Abstract
The main objective of this study was to determine the ability of various decontaminants to increase the prevalence of resistance to antibiotics in Escherichia coli populations on poultry. Chicken legs were dipped for 15 min into aqueous solutions (wt/vol) of trisodium phosphate (TSP; 12%), acidified sodium chlorite (ASC; 1200 ppm), ascorbic acid (AA; 2%) or citric acid (CA; 2%), or tap water (control). Samples were analyzed immediately after treatment (day 0) and after five days of storage at 7 ± 1 °C. A total of 250 E. coli isolates (50 from each group of samples; 25 on day 0 and 25 on day 5) were tested against twelve antibiotics of clinical significance by means of a standard disc-diffusion technique. A high prevalence of resistance to antibiotics was observed for E. coli strains from control samples, with three (6.0%) isolates sensitive, three (6.0%) resistant to one antibiotic and 44 (88.0%) isolates resistant to two or more antibiotics. Isolates from control samples had a lower prevalence of resistance than those from treated samples to ampicillin-sulbactam (P < 0.01, samples treated with TSP), amoxicillin-clavulanic acid (P < 0.001, ASC, AA and CA), cephotaxime (P < 0.05, TSP), trimethoprim-sulphamethoxazole (P < 0.05, AA; P < 0.01, CA), tetracycline (P < 0.01, CA), ciprofloxacin (P < 0.001, ASC; P < 0.05, AA; P < 0.01, CA) and nitrofurantoin (P < 0.01, TSP). These results suggest that the chemical decontaminants tested could favor the emergence, selection and/or proliferation of antibiotic-resistant strains in microbial populations on poultry meat.
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Affiliation(s)
- Rosa Capita
- Department of Food Hygiene and Food Technology, Veterinary Faculty, University of León, Campus de Vegazana, s/n, 24071-León, Spain.
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Yoon Y, Choi KH. Antimicrobial activities of therapeutic herbal plants against Listeria monocytogenes and the herbal plant cytotoxicity on Caco-2 cell. Lett Appl Microbiol 2012; 55:47-55. [DOI: 10.1111/j.1472-765x.2012.03262.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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38
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Rodrigues D, Cerca N, Teixeira P, Oliveira R, Ceri H, Azeredo J. Listeria monocytogenesandSalmonella entericaEnteritidis Biofilms Susceptibility to Different Disinfectants and Stress-Response and Virulence Gene Expression of Surviving Cells. Microb Drug Resist 2011; 17:181-9. [DOI: 10.1089/mdr.2010.0183] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Diana Rodrigues
- IBB—Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Nuno Cerca
- IBB—Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Pilar Teixeira
- IBB—Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Rosário Oliveira
- IBB—Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, University of Minho, Braga, Portugal
| | - Howard Ceri
- Biofilm Research Group, Department of Biological Sciences, University of Calgary, Calgary, Canada
| | - Joana Azeredo
- IBB—Institute for Biotechnology and Bioengineering, Centre of Biological Engineering, University of Minho, Braga, Portugal
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Lungu B, O'Bryan CA, Muthaiyan A, Milillo SR, Johnson MG, Crandall PG, Ricke SC. Listeria monocytogenes: Antibiotic Resistance in Food Production. Foodborne Pathog Dis 2011; 8:569-78. [DOI: 10.1089/fpd.2010.0718] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Affiliation(s)
- Bwalya Lungu
- Department of Food Science and Center for Food Safety—IFSE, University of Arkansas, Fayetteville, Arkansas
| | - Corliss A. O'Bryan
- Department of Food Science and Center for Food Safety—IFSE, University of Arkansas, Fayetteville, Arkansas
| | - Arunachalam Muthaiyan
- Department of Food Science and Center for Food Safety—IFSE, University of Arkansas, Fayetteville, Arkansas
| | - Sara R. Milillo
- Department of Food Science and Center for Food Safety—IFSE, University of Arkansas, Fayetteville, Arkansas
| | - Michael G. Johnson
- Department of Food Science and Center for Food Safety—IFSE, University of Arkansas, Fayetteville, Arkansas
| | - Philip G. Crandall
- Department of Food Science and Center for Food Safety—IFSE, University of Arkansas, Fayetteville, Arkansas
| | - Steven C. Ricke
- Department of Food Science and Center for Food Safety—IFSE, University of Arkansas, Fayetteville, Arkansas
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