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Ravindhiran R, Sivarajan K, Sekar JN, Murugesan R, Dhandapani K. Listeria monocytogenes an Emerging Pathogen: a Comprehensive Overview on Listeriosis, Virulence Determinants, Detection, and Anti-Listerial Interventions. MICROBIAL ECOLOGY 2023; 86:2231-2251. [PMID: 37479828 DOI: 10.1007/s00248-023-02269-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 07/12/2023] [Indexed: 07/23/2023]
Abstract
Listeria monocytogenes, the third most deleterious zoonotic pathogen, is a major causative agent of animal and human listeriosis, an infection related to the consumption of contaminated food products. Even though, this pathogen has been responsible for the outbreaks of foodborne infections in the early 1980s, the major outbreaks have been reported during the past two decades. Listeriosis infection in the host is a rare but life-threatening disease with major public health and economic implications. Extensive reports on listeriosis outbreaks are associated with milk and milk products, meat and meat products, and fresh produce. This bacterium can adapt to any environmental and stress conditions, making it a prime causative agent for major foodborne diseases. The pathogen could survive an antibiotic treatment and persist in the host cell, thereby escaping the standard diagnostic practices. The current review strives to provide concise information on the epidemiology, serotypes, and pathogenesis of the L. monocytogenes to decipher the knowledge on the endurance of the pathogen inside the host and food products as a vehicle for Listeria contaminations. In addition, various detection methods for Listeria species from food samples and frontline regimens of L. monocytogenes treatment have also been discussed.
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Affiliation(s)
- Ramya Ravindhiran
- Department of Biochemistry, Biotechnology and Bioinformatics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, Tamil Nadu, 641043, India
| | - Karthiga Sivarajan
- Department of Biochemistry, Biotechnology and Bioinformatics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, Tamil Nadu, 641043, India
| | - Jothi Nayaki Sekar
- Department of Biochemistry, Biotechnology and Bioinformatics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, Tamil Nadu, 641043, India
| | - Rajeswari Murugesan
- Department of Biochemistry, Biotechnology and Bioinformatics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, Tamil Nadu, 641043, India
| | - Kavitha Dhandapani
- Department of Biochemistry, Biotechnology and Bioinformatics, Avinashilingam Institute for Home Science and Higher Education for Women, Coimbatore, Tamil Nadu, 641043, India.
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2
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Osek J, Lachtara B, Wieczorek K. Listeria monocytogenes in foods-From culture identification to whole-genome characteristics. Food Sci Nutr 2022; 10:2825-2854. [PMID: 36171778 PMCID: PMC9469866 DOI: 10.1002/fsn3.2910] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 04/06/2022] [Accepted: 04/19/2022] [Indexed: 12/03/2022] Open
Abstract
Listeria monocytogenes is an important foodborne pathogen, which is able to persist in the food production environments. The presence of these bacteria in different niches makes them a potential threat for public health. In the present review, the current information on the classical and alternative methods used for isolation and identification of L. monocytogenes in food have been described. Although these techniques are usually simple, standardized, inexpensive, and are routinely used in many food testing laboratories, several alternative molecular-based approaches for the bacteria detection in food and food production environments have been developed. They are characterized by the high sample throughput, a short time of analysis, and cost-effectiveness. However, these methods are important for the routine testing toward the presence and number of L. monocytogenes, but are not suitable for characteristics and typing of the bacterial isolates, which are crucial in the study of listeriosis infections. For these purposes, novel approaches, with a high discriminatory power to genetically distinguish the strains during epidemiological studies, have been developed, e.g., whole-genome sequence-based techniques such as NGS which provide an opportunity to perform comparison between strains of the same species. In the present review, we have shown a short description of the principles of microbiological, alternative, and modern methods of detection of L. monocytogenes in foods and characterization of the isolates for epidemiological purposes. According to our knowledge, similar comprehensive papers on such subject have not been recently published, and we hope that the current review may be interesting for research communities.
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Affiliation(s)
- Jacek Osek
- Department of Hygiene of Food of Animal OriginNational Veterinary Research InstitutePuławyPoland
| | - Beata Lachtara
- Department of Hygiene of Food of Animal OriginNational Veterinary Research InstitutePuławyPoland
| | - Kinga Wieczorek
- Department of Hygiene of Food of Animal OriginNational Veterinary Research InstitutePuławyPoland
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3
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Magalhães R, Mena C, Ferreira V, Almeida G, Silva J, Teixeira P. Traditional Methods of Analysis for Listeria monocytogenes. Methods Mol Biol 2021; 2220:3-16. [PMID: 32975762 DOI: 10.1007/978-1-0716-0982-8_1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
Conventional methods for the detection of Listeria monocytogenes in foods and environmental samples rely on selective pre-enrichment, enrichment, and plating. This is followed by confirmation of suspected colonies by testing a limited number of biochemical markers.
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Affiliation(s)
- Rui Magalhães
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, Porto, Portugal
| | - Cristina Mena
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, Porto, Portugal
| | - Vânia Ferreira
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, Porto, Portugal
| | - Gonçalo Almeida
- INIAV, IP- National Institute for Agrarian and Veterinary Research, Rua dos Lagidos, Lugar da Madalena, Vila do Conde, Portugal
| | - Joana Silva
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, Porto, Portugal
| | - Paula Teixeira
- Universidade Católica Portuguesa, CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Rua Diogo Botelho 1327, Porto, Portugal.
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Verheyen D, Altin O, Skipnes D, Erdogdu F, Skåra T, Van Impe JF. Thermal inactivation of Listeria monocytogenes in the Shaka agitated reciprocal retort: Influence of food matrix rheology and fat content. FOOD AND BIOPRODUCTS PROCESSING 2021. [DOI: 10.1016/j.fbp.2020.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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5
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Duman-Özdamar ZE, Ünlü A, Ünal H, Woodley JM, Bi Nay B. High-yield production of active recombinant S. simulans lysostaphin expressed in E. coli in a laboratory bioreactor. Protein Expr Purif 2020; 177:105753. [PMID: 32950627 DOI: 10.1016/j.pep.2020.105753] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 08/24/2020] [Accepted: 09/09/2020] [Indexed: 10/23/2022]
Abstract
Staphylococcus aureus (S. aureus), which has developed multidrug resistance, leads to many healthcare-associated infections resulting in significant medical and economic losses. Therefore, the development of new efficient strategies to deal with these bacteria has been gaining importance. Lysostaphin is a peptidoglycan hydrolase that has considerable potential as a bacteriocin. However, there have been few reported optimization and scale-up studies of the lysostaphin bioproduction process. Our preliminary results have revealed that the composition of auto-induction media at 30 °C increases the produced lysostaphin around 10-fold in shake flasks. In this study, achieving higher yields for recombinant lysostaphin in E. coli at a laboratory scale has been the aim, through the use of auto-induction media. Optimized medium composition and fermentation parameters were transferred to a laboratory-scale bioreactor. The tested conditions improved protein yields up to 184 mg/L in a 3 L stirred bioreactor and the productivity was improved 2-fold in comparison to previously published reports. Furthermore, this study also showed that lysostaphin is an effective bacteriocin on both commercially available and isolated S. aureus strains. These results will contribute to future larger-scale production of lysostaphin via the proposed fermentation conditions.
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Affiliation(s)
| | - Aişe Ünlü
- Department of Chemistry, Gebze Technical University, 41400, Gebze, Kocaeli, Turkey
| | - Hayriye Ünal
- Nanotechnology Research Center (SUNUM), Sabanci University, 34956, Tuzla, Istanbul, Turkey
| | - John M Woodley
- Department of Chemical and Biochemical Engineering, Technical University of Denmark, DK 2800 Kgs Lyngby, Denmark
| | - Barış Bi Nay
- Department of Bioengineering, Gebze Technical University, 41400, Gebze, Kocaeli, Turkey.
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6
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Hot water sanitization of a commercial mushroom disk slicer to inactivate Listeria monocytogenes. Food Control 2020. [DOI: 10.1016/j.foodcont.2019.106900] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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7
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Verheyen D, Baka M, Akkermans S, Skåra T, Van Impe JF. Effect of microstructure and initial cell conditions on thermal inactivation kinetics and sublethal injury of Listeria monocytogenes in fish-based food model systems. Food Microbiol 2019; 84:103267. [DOI: 10.1016/j.fm.2019.103267] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 05/22/2019] [Accepted: 07/10/2019] [Indexed: 01/07/2023]
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8
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Doncel B, Capelesso A, Giannitti F, Cajarville C, Macías-Rioseco M, Silveira C, Costa RA, Riet-Correa F. Hypomagnesemia in dairy cattle in Uruguay. PESQUISA VETERINÁRIA BRASILEIRA 2019. [DOI: 10.1590/1678-5150-pvb-6215] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
ABSTRACT: An outbreak of hypomagnesemia is reported in Holstein dairy cattle grazing lush oat (Avena sativa) pasture in Uruguay. Nine of 270 (3.3%) cows died in May-July (autumn-winter) 2017. These nine cows were from 2 to 9-years-old (1st-6th lactation), with 22 to 194 days of lactation and 15.8 to 31.4L of daily milk production. Two cows with acute sialorrhea, muscle spasms, lateral recumbency, weakness, opisthotonos, and coma, were euthanized and necropsied. No significant macroscopic or histological lesions were found. One untreated clinically-affected cow and eight out of 14 clinically healthy cows of the same group under similar management and production conditions had low serum levels of Mg (lower than 0.7mmol/L). Secondarily, both clinically affected cows and six out of 14 healthy cows had low serum Ca levels. The K/(Ca+Mg) ratio of two oat forages, corn silage, and ration was 5.10, 7.73, 2.45, and 0.85, respectively. A K/(Ca+Mg) ratio lower than 2.2 represents a risk for hypomagnesemia. The difference between the contribution-requirement of minerals in the diet was established and a daily deficiency of Mg (-0.36g/day), Na (-25.2g/day) and Ca (-9.27g/day) was found, while K (184.42g/day) and P (12.81g/day) were in excess. The diet was reformulated to correct the deficiencies and the disease was controlled by the daily administration of 80g of magnesium oxide, 80g of calcium carbonate and 30g sodium chloride per cow. It is concluded that hypomagnesemia is a cause of mortality in dairy cattle in Uruguay, and that the condition can be prevented by appropriate diet formulation.
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Affiliation(s)
- Benjamín Doncel
- Universidad Nacional de Colombia, Colombia; Instituto Nacional de Investigación Agropecuaria, Uruguay
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Bardet L, Rolain JM. Development of New Tools to Detect Colistin-Resistance among Enterobacteriaceae Strains. THE CANADIAN JOURNAL OF INFECTIOUS DISEASES & MEDICAL MICROBIOLOGY = JOURNAL CANADIEN DES MALADIES INFECTIEUSES ET DE LA MICROBIOLOGIE MEDICALE 2018; 2018:3095249. [PMID: 30631384 PMCID: PMC6305056 DOI: 10.1155/2018/3095249] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Accepted: 01/11/2018] [Indexed: 12/27/2022]
Abstract
The recent discovery of the plasmid-mediated mcr-1 gene conferring resistance to colistin is of clinical concern. The worldwide screening of this resistance mechanism among samples of different origins has highlighted the urgent need to improve the detection of colistin-resistant isolates in clinical microbiology laboratories. Currently, phenotypic methods used to detect colistin resistance are not necessarily suitable as the main characteristic of the mcr genes is the low level of resistance that they confer, close to the clinical breakpoint recommended jointly by the CLSI and EUCAST expert systems (S ≤ 2 mg/L and R > 2 mg/L). In this context, susceptibility testing recommendations for polymyxins have evolved and are becoming difficult to implement in routine laboratory work. The large number of mechanisms and genes involved in colistin resistance limits the access to rapid detection by molecular biology. It is therefore necessary to implement well-defined protocols using specific tools to detect all colistin-resistant bacteria. This review aims to summarize the current clinical microbiology diagnosis techniques and their ability to detect all colistin resistance mechanisms and describe new tools specifically developed to assess plasmid-mediated colistin resistance. Phenotyping, susceptibility testing, and genotyping methods are presented, including an update on recent studies related to the development of specific techniques.
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Affiliation(s)
- Lucie Bardet
- Aix-Marseille Université, IRD, AP-HM, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - Jean-Marc Rolain
- Aix-Marseille Université, IRD, AP-HM, MEPHI, IHU-Méditerranée Infection, Marseille, France
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10
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Protective effect of reuterin-producing Lactobacillus reuteri against Listeria monocytogenes and Escherichia coli O157:H7 in semi-hard cheese. Food Control 2018. [DOI: 10.1016/j.foodcont.2017.08.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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11
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Prevalence and methodologies for detection, characterization and subtyping of Listeria monocytogenes and L. ivanovii in foods and environmental sources. FOOD SCIENCE AND HUMAN WELLNESS 2017. [DOI: 10.1016/j.fshw.2017.06.002] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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12
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Fernandez B, Savard P, Fliss I. Survival and Metabolic Activity of Pediocin Producer Pediococcus acidilactici UL5: Its Impact on Intestinal Microbiota and Listeria monocytogenes in a Model of the Human Terminal Ileum. MICROBIAL ECOLOGY 2016; 72:931-942. [PMID: 26162534 DOI: 10.1007/s00248-015-0645-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 06/25/2015] [Indexed: 06/04/2023]
Abstract
Pediococcus acidilactici UL5 is a promising probiotic candidate due to its high survival rate under gastric and duodenal conditions and to its ability to produce the antilisterial bacteriocin pediocin PA-1. Its survival, metabolic activity, and impact on Listeria monocytogenes in a continuous stirred tank reactor containing immobilized human intestinal microbiota were studied over a period of 32 days of feeding a nutrient medium simulating ileal chyme. The impact of P. acidilactici UL5 on different bacterial groups of intestinal origin as well as its survival and its impact on L. monocytogenes were quantified using quantitative polymerase chain reaction coupling with propidium monoazide (PMA-qPCR), which was shown to detect and quantify viable bacteria only. P. acidilactici UL5 and its non-pediocin-producing mutant had no effect on the microbiota, but the producing strain induced an increase in the production of acetic and propionic acids. P. acidilactici survived but appeared to be a poor competitor with intestinal microbiota, dropping by 1.3 and 2.8 log10 after 8 h of fermentation to 104 colony-forming units (cfu) mL-1. A 1.64 log but non-significant reduction of Listeria was observed when P. acidilactici UL5 was added at 108 cfu mL-1. P. acidilactici UL5 isolated from the reactor after 3 days was still able to produce the active bacteriocin. These data demonstrate that P. acidilactici UL5 is capable of surviving transit through the ileum without losing its ability to produce pediocin PA-1 but seems to not be enough competitive with the great diversity of organisms found in the ileum.
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Affiliation(s)
- Benoît Fernandez
- STELA Dairy Research Center, Nutrition and Functional Foods Institute, Université Laval, G1K 7P4, Québec, QC, Canada
| | - Patricia Savard
- STELA Dairy Research Center, Nutrition and Functional Foods Institute, Université Laval, G1K 7P4, Québec, QC, Canada
| | - Ismail Fliss
- STELA Dairy Research Center, Nutrition and Functional Foods Institute, Université Laval, G1K 7P4, Québec, QC, Canada.
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García JA, Micheloud JF, Campero CM, Morrell EL, Odriozola ER, Moreira AR. Enteric listeriosis in grazing steers supplemented with spoiled silage. J Vet Diagn Invest 2015; 28:65-9. [DOI: 10.1177/1040638715616658] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
An outbreak of enteric listeriosis in steers that were fed spoiled silage is reported. The outbreak started 2 days after ~200 animals in a single paddock were given a supplement of spoiled silage. Forty animals (20%) were affected, and 13 (6.5%) died over a period of 10 days. Affected animals were recumbent, depressed, and had diarrhea with mucus and fibrin. Gross and microscopic findings in 3 animals that were subjected to autopsy included excess peritoneal fluid, congestion and edema of abomasum, suppurative enteritis and colitis, and suppurative mesenteric lymphadenitis. Two strains of Listeria monocytogenes were isolated, one of serotype 1/2c from the gallbladder and one of serotype 1/2b from the spoiled silage. Listeria monocytogenes was detected in the mesenteric lymph nodes and intestinal wall of 1 animal by immunohistochemistry (IHC). Clinical history and signs, gross and microscopic findings, bacterial isolation, and IHC results confirmed a diagnosis of enteric listeriosis. The source of infection was likely the spoiled silage.
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Affiliation(s)
- Juan A. García
- Residence Veterinary Program (Garcia, Micheloud) and Animal Health Group (Campero, Odriozola, Morrell, Moreira) of the National Institute of Agrarian Technology (INTA), Balcarce, Argentina
| | - Juan F. Micheloud
- Residence Veterinary Program (Garcia, Micheloud) and Animal Health Group (Campero, Odriozola, Morrell, Moreira) of the National Institute of Agrarian Technology (INTA), Balcarce, Argentina
| | - Carlos M. Campero
- Residence Veterinary Program (Garcia, Micheloud) and Animal Health Group (Campero, Odriozola, Morrell, Moreira) of the National Institute of Agrarian Technology (INTA), Balcarce, Argentina
| | - Eleonora L. Morrell
- Residence Veterinary Program (Garcia, Micheloud) and Animal Health Group (Campero, Odriozola, Morrell, Moreira) of the National Institute of Agrarian Technology (INTA), Balcarce, Argentina
| | - Ernesto R. Odriozola
- Residence Veterinary Program (Garcia, Micheloud) and Animal Health Group (Campero, Odriozola, Morrell, Moreira) of the National Institute of Agrarian Technology (INTA), Balcarce, Argentina
| | - Ana R. Moreira
- Residence Veterinary Program (Garcia, Micheloud) and Animal Health Group (Campero, Odriozola, Morrell, Moreira) of the National Institute of Agrarian Technology (INTA), Balcarce, Argentina
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Guigas C, Faulhaber K, Duerbeck D, Neve H, Heller KJ. Prophage-mediated modulation of interaction of Streptococcus thermophilus J34 with human intestinal epithelial cells and its competition against human pathogens. Benef Microbes 2015; 7:289-97. [PMID: 26689226 DOI: 10.3920/bm2015.0108] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The human intestinal microbiota plays an important role in human health. While adhesion to gastrointestinal mucosa is a prerequisite for colonisation, inhibition of adhesion is a property which may prevent or reduce infections by food borne pathogens. Streptococcus thermophilus and Lactobacillus delbrueckii subsp. bulgaricus represent the two lactic bacteria constituting the yoghurt culture. These starter cultures have been claimed to be probiotic. In our study we compared two S. thermophilus strains (i.e. lysogenic strain J34 and corresponding non-lysogenic [prophage-cured] strain J34-6), with respect to (1) their in vitro adhesion properties to HT29 cells and (2) their cell surface hydrophobicities. Effects of the two strains on inhibition of adhesion of the pathogens Listeria monocytogenes Scott A, Staphylococcus aureus 6732 and Salmonella enteritidis S489 were studied in vitro with HT29 cell cultures. Lysogenic strain J34 was shown to be considerably more effective than the non-lysogenic derivative strain J34-6.
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Affiliation(s)
- C Guigas
- 1 Department of Microbiology and Biotechnology, Max Rubner Institut (Federal Research Institute of Nutrition and Health), Hermann-Weigmann-Straße 1, 24103 Kiel, Germany
| | - K Faulhaber
- 2 Chair Organismic Interactions, Interfaculty Institute of Microbiology and Infection Medicine, Tübingen University, Geschwister-Scholl-Platz, 72074 Tübingen, Germany
| | - D Duerbeck
- 3 BAV-Institut für Hygiene und Qualitätssicherung, Hanns-Martin-Schleyer-Str. 25, 77656 Offenburg, Germany
| | - H Neve
- 1 Department of Microbiology and Biotechnology, Max Rubner Institut (Federal Research Institute of Nutrition and Health), Hermann-Weigmann-Straße 1, 24103 Kiel, Germany
| | - K J Heller
- 1 Department of Microbiology and Biotechnology, Max Rubner Institut (Federal Research Institute of Nutrition and Health), Hermann-Weigmann-Straße 1, 24103 Kiel, Germany
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15
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Law JWF, Ab Mutalib NS, Chan KG, Lee LH. An insight into the isolation, enumeration, and molecular detection of Listeria monocytogenes in food. Front Microbiol 2015; 6:1227. [PMID: 26579116 PMCID: PMC4630303 DOI: 10.3389/fmicb.2015.01227] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2015] [Accepted: 10/20/2015] [Indexed: 12/23/2022] Open
Abstract
Listeria monocytogenes, a foodborne pathogen that can cause listeriosis through the consumption of food contaminated with this pathogen. The ability of L. monocytogenes to survive in extreme conditions and cause food contaminations have become a major concern. Hence, routine microbiological food testing is necessary to prevent food contamination and outbreaks of foodborne illness. This review provides insight into the methods for cultural detection, enumeration, and molecular identification of L. monocytogenes in various food samples. There are a number of enrichment and plating media that can be used for the isolation of L. monocytogenes from food samples. Enrichment media such as buffered Listeria enrichment broth, Fraser broth, and University of Vermont Medium (UVM) Listeria enrichment broth are recommended by regulatory agencies such as Food and Drug Administration-bacteriological and analytical method (FDA-BAM), US Department of Agriculture-Food and Safety (USDA-FSIS), and International Organization for Standardization (ISO). Many plating media are available for the isolation of L. monocytogenes, for instance, polymyxin acriflavin lithium-chloride ceftazidime aesculin mannitol, Oxford, and other chromogenic media. Besides, reference methods like FDA-BAM, ISO 11290 method, and USDA-FSIS method are usually applied for the cultural detection or enumeration of L. monocytogenes. most probable number technique is applied for the enumeration of L. monocytogenes in the case of low level contamination. Molecular methods including polymerase chain reaction, multiplex polymerase chain reaction, real-time/quantitative polymerase chain reaction, nucleic acid sequence-based amplification, loop-mediated isothermal amplification, DNA microarray, and next generation sequencing technology for the detection and identification of L. monocytogenes are discussed in this review. Overall, molecular methods are rapid, sensitive, specific, time- and labor-saving. In future, there are chances for the development of new techniques for the detection and identification of foodborne with improved features.
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Affiliation(s)
- Jodi Woan-Fei Law
- Biomedical Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash UniversityBandar Sunway, Malaysia
| | | | - Kok-Gan Chan
- Division of Genetics and Molecular Biology, Institute of Biological Sciences, Faculty of Science, University of MalayaKuala Lumpur, Malaysia
| | - Learn-Han Lee
- Biomedical Research Laboratory, Jeffrey Cheah School of Medicine and Health Sciences, Monash UniversityBandar Sunway, Malaysia
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16
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Karthikeyan R, Gunasekaran P, Rajendhran J. Molecular Serotyping and Pathogenic Potential ofListeria monocytogenesIsolated from Milk and Milk Products in Tamil Nadu, India. Foodborne Pathog Dis 2015; 12:522-8. [DOI: 10.1089/fpd.2014.1872] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Affiliation(s)
- Raman Karthikeyan
- Department of Genetics, Centre for Excellence in Genomic Sciences, School of Biological Sciences, Madurai Kamaraj University, Madurai, India
| | - Paramasamy Gunasekaran
- Department of Genetics, Centre for Excellence in Genomic Sciences, School of Biological Sciences, Madurai Kamaraj University, Madurai, India
| | - Jeyaprakash Rajendhran
- Department of Genetics, Centre for Excellence in Genomic Sciences, School of Biological Sciences, Madurai Kamaraj University, Madurai, India
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17
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Montiel R, Martín-Cabrejas I, Medina M. Reuterin, lactoperoxidase, lactoferrin and high hydrostatic pressure on the inactivation of food-borne pathogens in cooked ham. Food Control 2015. [DOI: 10.1016/j.foodcont.2014.11.010] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Skåra T, Valdramidis VP, Rosnes JT, Noriega E, Van Impe JF. A novel model to assess the efficacy of steam surface pasteurization of cooked surimi gels inoculated with realistic levels of Listeria innocua. Food Microbiol 2014; 44:64-70. [DOI: 10.1016/j.fm.2014.05.018] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 04/29/2014] [Accepted: 05/25/2014] [Indexed: 11/26/2022]
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Angelidis AS, Kalamaki MS, Georgiadou SS. Identification of non-Listeria spp. bacterial isolates yielding a β-D-glucosidase-positive phenotype on Agar Listeria according to Ottaviani and Agosti (ALOA). Int J Food Microbiol 2014; 193:114-29. [PMID: 25462931 DOI: 10.1016/j.ijfoodmicro.2014.10.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Revised: 09/30/2014] [Accepted: 10/17/2014] [Indexed: 10/24/2022]
Abstract
Agar Listeria according to Ottaviani and Agosti (ALOA) is the mandatory medium used for the detection and enumeration of Listeria monocytogenes in foods according to the official International Organization for Standardization (ISO) methods. On ALOA, Listeria spp. appear as bluish-green colonies due to the production of β-D-glucosidase, an enzyme that cleaves 5-bromo-4-chloro-3-indolyl-β-D-glucopyranoside, a chromogenic substrate included in the formulation of the medium. The present work reports on bacterial isolates (n=64) from ready-to-eat soft cheeses, which are able to grow on ALOA, forming bluish-green colonies and therefore phenotypically resemble Listeria spp. All isolates were also capable of growing on the selective media PALCAM and RAPID L'mono. The isolates were characterised with biochemical tests including those specified in the ISO standards for the confirmation of Listeria spp. and identified via partial sequencing of their 16S rRNA gene. According to sequencing results the isolates represented 12 different bacterial species or species-groups belonging to seven different genera: Bacillus spp. (B. circulans, B. clausii, B. licheniformis and B. oleronius), Cellulosimicrobium spp. (C. funkei), Enterococcus spp. (E. faecalis, E. faecium/durans), Kocuria spp. (K. kristinae), Marinilactibacillus spp. (M. psychrotolerans), Rothia spp. (R. terrae) and Staphylococcus spp. (S. sciuri and S. saprophyticus subsp. saprophyticus/xylosus). Cellulosimicrobium spp. have never been previously isolated from foods. These results significantly extend the list of bacteria previously known as capable of growing on ALOA as bluish-green colonies and suggest that there may be room for further improvement in the medium's inhibitory properties towards non-Listeria spp., Gram-positive bacteria present in foods.
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Affiliation(s)
- Apostolos S Angelidis
- Laboratory of Milk Hygiene and Technology, Department of Food Hygiene and Technology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece.
| | - Mary S Kalamaki
- Laboratory of Milk Hygiene and Technology, Department of Food Hygiene and Technology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Sofia S Georgiadou
- Laboratory of Milk Hygiene and Technology, Department of Food Hygiene and Technology, School of Veterinary Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
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Kumar A, Grover S, Batish VK. A multiplex PCR assay based on 16S rRNA and hly for rapid detection of L. monocytogenes in Milk. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2014. [DOI: 10.1007/s11694-014-9176-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Montiel R, Martín-Cabrejas I, Gaya P, Medina M. Reuterin and High Hydrostatic Pressure Treatments on the Inactivation of Listeria monocytogenes and Effect on the Characteristics of Cold-Smoked Salmon. FOOD BIOPROCESS TECH 2014. [DOI: 10.1007/s11947-014-1287-9] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Magalhães R, Mena C, Ferreira V, Almeida G, Silva J, Teixeira P. Traditional methods for isolation of Listeria monocytogenes. Methods Mol Biol 2014; 1157:15-30. [PMID: 24792545 DOI: 10.1007/978-1-4939-0703-8_2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Conventional methods for the detection of Listeria monocytogenes in foods and environmental samples relies on selective pre-enrichment, enrichment, and plating. This is followed by confirmation of suspected colonies by testing a limited number of biochemical markers.
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Affiliation(s)
- Rui Magalhães
- CBQF-Centro de Biotecnologia e Química Fina-Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa/Porto, Rua Dr. António Bernardino Almeida, Porto, 4200-072, Portugal
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Martínez-Gonzáles NE, Martínez-Chávez L, Martínez-Cárdenas C, Cabrera-Díaz E, Castillo A. The Polymyxin Ceftazidime Oxford Medium as an alternative selective and differential medium for isolation of Listeria monocytogenes from raw or unpasteurized food. Food Microbiol 2013; 38:44-51. [PMID: 24290624 DOI: 10.1016/j.fm.2013.07.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 07/11/2013] [Accepted: 07/17/2013] [Indexed: 11/18/2022]
Abstract
The Polymyxin Ceftazidime Oxford Medium (PCOM) was developed to recover Listeria monocytogenes from raw or unpasteurized foods. It contains esculin-ferric ammonium citrate as indicator system for Listeria growth, and ceftazidime and polymyxin B as selective agents, which are available in several Latin American countries. Comparison of PCOM, Modified Oxford Medium (MOX) and Tryptic Soy agar with 0.6% yeast extract (TSAYE) indicated that both selective media were equally effective at recovering four individual strains of L. monocytogenes (Scott A, V7, California and broccoli), and a mixture of these strains (LMM) (P > 0.05). The ability of PCOM, MOX, TSAYE and TSAYE supplemented with 4% NaCl to recover heat, acid and freeze-damaged LMM was similar for all media (P > 0.05). The PCOM proved to be effective at isolating colonies of LMM from inoculated raw beef chunks, unpasteurized orange juice, cabbage, and Mexican-style cheese by direct plating and by the US Department of Agriculture's Food Safety and Inspection Service enrichment method. Differentiation of L. monocytogenes colonies was easier on PCOM than on MOX for foods with high levels of background microbiota. Based on the evaluations performed on foods naturally contaminated with L. monocytogenes, PCOM was a more economical alternative than MOX for selective and differential isolation of Listeria from raw or unpasteurized foods.
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Affiliation(s)
- N E Martínez-Gonzáles
- Departamento de Farmacobiología, Universidad de Guadalajara, Boulevard Marcelino García Barragán 1451, Guadalajara, Jalisco 44430, Mexico
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Development of a novel selective and differential medium for the isolation of Listeria monocytogenes. Appl Environ Microbiol 2013; 80:1020-5. [PMID: 24271177 DOI: 10.1128/aem.02840-13] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
A new medium (lecithin and levofloxacin [LL] medium) is described for the isolation of Listeria monocytogenes from food samples. LL medium includes lecithin from soybeans for the detection of phosphatidylinositol-specific phospholipase C (PI-PLC) and phosphatidylcholine-specific phospholipase C (PC-PLC) produced by L. monocytogenes. Levofloxacin is incorporated to inhibit the growth of microorganisms other than L. monocytogenes, especially Bacillus cereus, shown to possess PI-PLC and PC-PLC activities. L. monocyogenes produced white colonies with a halo on LL medium, whereas Listeria innocua appeared as white colonies without a halo. Levofloxacin at 0.20 mg/liter completely inhibited the growth of B. cereus, while the growth of L. monocytogenes was unaffected. In the second phase of the study, the sensitivity and the specificity of LL medium were compared to those of modified Oxford agar (MOX) and two chromogenic media (Brilliance Listeria agar and CHROMagar Listeria), using a total of 250 food samples. From 200 unspiked food samples, the specificity of LL medium (96.0%) was superior to that of MOX (72.0%) and similar to the specificities of Brilliance Listeria agar (96.5%) and CHROMagar Listeria (94.5%). From 50 spiked food samples, LL medium and CHROMagar Listeria represented the highest sensitivities (96.0%), followed by Brilliance Listeria agar (92.0%) and MOX (54.0%). Also, LL medium showed the highest confirmation rate (98.8%), followed by Brilliance Listeria agar (98.7%), CHROMagar Listeria (98.3%), and MOX (52.0%). On the basis of its good specificity and cost effectiveness, LL medium is useful for the isolation of L. monocytogenes from food samples.
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Saxer S, Schwenninger SM, Lacroix C. Characterization of the microflora of industrial Mexican cheeses produced without added chemical preservatives. Lebensm Wiss Technol 2013. [DOI: 10.1016/j.lwt.2013.01.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Cheng C, Chen J, Fang C, Xia Y, Shan Y, Liu Y, Wen G, Song H, Fang W. Listeria monocytogenes aguA1, but not aguA2, encodes a functional agmatine deiminase: biochemical characterization of its catalytic properties and roles in acid tolerance. J Biol Chem 2013; 288:26606-15. [PMID: 23918931 DOI: 10.1074/jbc.m113.477380] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Listeria monocytogenes is adaptable to low pH environments and therefore crosses the intestinal barrier to establish systemic infections. L. monocytogenes aguA1 and aguA2 encode putative agmatine deiminases (AgDIs) AguA1 and AguA2. Transcription of aguA1 and aguA2 was significantly induced at pH 5.0. Deletion of aguA1 significantly impaired its survival both in gastric fluid at pH 2.5 and in mouse stomach, whereas aguA2 deletion did not show significant defect of survival in gastric fluid. With agmatine as the sole substrate, AguA1 expressed in Escherichia coli was optimal at 25 °C and over a wide range of pH from 3.5 to 10.5. Recombinant AguA2 showed no deiminase activity. Site-directed mutagenesis revealed that all nine AguA1 mutants completely lost enzymatic activity. AguA2 acquired AgDI activity only when Cys-157 was mutated to glycine. AguA1 mutation at the same site, G157C, also inactivated the enzyme. Thus, we have discovered Gly-157 as a novel residue other than the known catalytic triad (Cys-His-Glu/Asp) in L. monocytogenes that is critical for enzyme activity. Of the two putative AgDIs, we conclude that only AguA1 functionally participates in the AgDI pathway and mediates acid tolerance in L. monocytogenes.
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Affiliation(s)
- Changyong Cheng
- From the Zhejiang University Institute of Preventive Veterinary Medicine, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, and Key Laboratory of Molecular Animal Nutrition of the Ministry of Education, Hangzhou, Zhejiang 310058, China
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28
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Weil JD, Cutter CN, Beelman RB, LaBorde LF. Inactivation of human pathogens during phase II composting of manure-based mushroom growth substrate. J Food Prot 2013; 76:1393-400. [PMID: 23905795 DOI: 10.4315/0362-028x.jfp-12-508] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Commercial production of white button mushrooms (Agaricus bisporus) requires a specialized growth substrate prepared from composted agricultural by-products. Because horse and poultry manures are widely used in substrate formulations, there is a need to determine the extent to which the composting process is capable of eliminating human pathogens. In this study, partially composted substrate was inoculated with a pathogen cocktail (log 10⁶ to 10⁸ CFU/g) containing Listeria monocytogenes, Escherichia coli O157:H7, and Salmonella. Pathogen and indicator-organism reductions were followed at temperatures that typically occurred during a standard 6-day phase II pasteurization and conditioning procedure. Controlled-temperature water bath studies at 48.8, 54.4, and 60°C demonstrated complete destruction of the three pathogens after 36.0, 8.0, and 0.5 h, respectively. Destruction of L. monocytogenes and E. coli O157:H7 at 54.4°C occurred more slowly than E. coli, total coliforms, Enterobacteriaceae, and Salmonella. Microbial reductions that occurred during a standard 6-day phase II pasteurization and conditioning treatment were studied in a small-scale mushroom production research facility. After phase II composting, E. coli, coliforms, and Enterobacteriaceae were below detectable levels, and inoculated pathogens were not detected by direct plating or by enrichment. The results of this study show that a phase II composting process can be an effective control measure for eliminating risks associated with the use of composted animal manures during mushroom production. Growers are encouraged to validate and verify their own composting processes through periodic microbial testing for pathogens and to conduct studies to assure uniform distribution of substrate temperatures during phase II.
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Affiliation(s)
- Jennifer D Weil
- Department of Food Science, The Pennsylvania State University, 202 Food Science Building, University Park, Pennsylvania 16802, USA
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29
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Viswanath P, Murugesan L, Knabel SJ, Verghese B, Chikthimmah N, Laborde LF. Incidence of Listeria monocytogenes and Listeria spp. in a small-scale mushroom production facility. J Food Prot 2013; 76:608-15. [PMID: 23575122 DOI: 10.4315/0362-028x.jfp-12-292] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Listeria monocytogenes is a foodborne pathogen of significant concern to the agricultural and food processing industry because of its ability to grow and persist in cool and moist environments and its association with listeriosis, a disease with a very high mortality rate. Although there have been no listeriosis outbreaks attributed to fresh mushrooms in the United States, retail surveys and recalls are evidence that L. monocytogenes contamination of mushrooms (Agaricus bisporus) can occur. The objective of this study was to determine the prevalence of Listeria spp., including L. monocytogenes, in a small-scale mushroom production facility on the campus of the Pennsylvania State University in the United States. Of 184 samples taken from five production zones within the facility, 29 (15.8%) samples were positive for Listeria spp. Among the Listeria spp. isolates, L. innocua was most prevalent (10.3%) followed by L. welshimeri (3.3%), L. monocytogenes (1.6%), and L. grayi (0.5%). L. monocytogenes was recovered only from the phase I raw material composting area. Isolates of L. monocytogenes were confirmed and serotyped by multiplex PCR. The epidemiological relatedness of the three L. monocytogenes isolates to those serotypes or lineages frequently encountered in listeriosis infections was determined by multi-virulence-locus sequence typing using six virulence genes, namely, prfA, inlB, inlC, dal, clpP, and lisR. The phylogenetic positions of the three isolates in the dendrogram prepared with data from other isolates of L. monocytogenes showed that all isolates were grouped with serotype 4a, lineage IIIA. To date, this serotype has rarely been reported in foodborne disease outbreaks.
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Affiliation(s)
- Prema Viswanath
- Department of Food Science, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.
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30
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Fernandez B, Le Lay C, Jean J, Fliss I. Growth, acid production and bacteriocin production by probiotic candidates under simulated colonic conditions. J Appl Microbiol 2012; 114:877-85. [DOI: 10.1111/jam.12081] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2012] [Revised: 10/30/2012] [Accepted: 11/10/2012] [Indexed: 11/29/2022]
Affiliation(s)
- B. Fernandez
- STELA Dairy Research Center; Nutraceuticals and Functional Foods Institute; Université Laval; Québec City QC Canada
| | - C. Le Lay
- STELA Dairy Research Center; Nutraceuticals and Functional Foods Institute; Université Laval; Québec City QC Canada
| | - J. Jean
- STELA Dairy Research Center; Nutraceuticals and Functional Foods Institute; Université Laval; Québec City QC Canada
| | - I. Fliss
- STELA Dairy Research Center; Nutraceuticals and Functional Foods Institute; Université Laval; Québec City QC Canada
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31
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Lyautey E, Hartmann A, Lapen DR, Topp E. A comparison of enrichment and direct-plating methods for isolation of Listeria monocytogenes from surface water. Can J Microbiol 2012; 58:1405-10. [PMID: 23210998 DOI: 10.1139/cjm-2012-0418] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Listeria monocytogenes is a facultative intracellular pathogen distributed in the environment. Reference isolation methods include an enrichment step. We compared 2 protocols: one based on enrichment and the other on direct plating, with respect to the efficiency of isolation of L. monocytogenes from surface water samples. From March to May 2006, 126 surface water samples were collected biweekly from 24 discrete sampling sites located in the South Nation River basin (Ontario). Presumptive Listeria spp. were isolated using the 2 methods, and L. monocytogenes isolates were confirmed based on colony morphology and amplification of 3 pathogenicity genes: iap, inlA, and hlyA. Listeria monocytogenes was detected in 31 water samples using the enrichment approach and in 27 using the direct-plating approach, with only 13 samples positive using both approaches. No correlation was observed between the ability of the enrichment procedure to fail in the detection of the pathogenic bacterium and the abundance of several indicator bacteria. The proportion of samples carrying isolates from serovar groups 1/2a, 3a; 1/2b, 3b, 7; 4b, 4d, 4e; and Listeria spp. was significantly different between the 2 approaches. This data indicate that a direct-plating approach would be suitable for the detection of L. monocytogenes in water samples, but that enrichment and direct-plating protocols both have specific biases.
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Affiliation(s)
- Emilie Lyautey
- Agriculture and Agri-Food Canada, Southern Crop Protection and Food Research Centre, London, ON N5V 4T3, Canada
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32
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Tosun ŞY, Özden Ö. Survey of Inhibition ofListeria Monocytogenesin Hot-Smoked Rainbow Trout Fillets for Food Safety. J FOOD PROCESS PRES 2012. [DOI: 10.1111/j.1745-4549.2012.00781.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ş. Yasemin Tosun
- Department of Seafood Processing and Quality Control; Faculty of Fisheries; Istanbul University; Istanbul 34470 Turkey
| | - Özkan Özden
- Department of Seafood Processing and Quality Control; Faculty of Fisheries; Istanbul University; Istanbul 34470 Turkey
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Zhang X, Wu S, Li K, Shuai J, Dong Q, Fang W. Peptide nucleic acid fluorescence in situ hybridization for identification of Listeria genus, Listeria monocytogenes and Listeria ivanovii. Int J Food Microbiol 2012; 157:309-13. [PMID: 22633537 DOI: 10.1016/j.ijfoodmicro.2012.05.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2012] [Revised: 04/29/2012] [Accepted: 05/01/2012] [Indexed: 10/28/2022]
Abstract
A fluorescent in situ hybridization (FISH) method in conjunction with fluorescin-labeled peptide nucleic acid (PNA) probes (PNA-FISH) for detection of Listeria species was developed. In silico analysis showed that three PNA probes Lis-16S-1, Lm-16S-2 and Liv-16S-5 were suitable for specific identification of Listeria genus, Listeria monocytogenes and Listeria ivanovii, respectively. These probes were experimentally verified by their reactivity against 19 strains of six Listeria species (excluding newly described species Listeria marthii and Listeria rocourtiae) and eight other bacterial species. The PNA-FISH method was optimized as 30 min of hybridization with 0.2% Triton X-100 in the solution and used to identify 85 Listeria strains from individual putative Listeria colonies on PALCAM agar plates streaked from selectively enriched cultures of 780 food or food-related samples. Of the 85 Listeria strains, thirty-seven were identified as L. monocytogenes with the probe Lm-16S-2 and two as L. ivanovii with the probe Liv-16S-5 which was in agreement with the results obtained by the API LISTERIA method. Thus, the PNA-FISH protocol has the potential for identification of pathogenic Listeria spp. from food or food-related samples.
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Affiliation(s)
- Xiaofeng Zhang
- Food Safety Key Laboratory of Zhejiang Province, Zhejiang Entry-Exit Inspection and Quarantine Bureau, Hangzhou 310012, People's Republic of China
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Intestinally secreted C-type lectin Reg3b attenuates salmonellosis but not listeriosis in mice. Infect Immun 2012; 80:1115-20. [PMID: 22252863 DOI: 10.1128/iai.06165-11] [Citation(s) in RCA: 85] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The Reg3 protein family, including the human member designated pancreatitis-associated protein (PAP), consists of secreted proteins that contain a C-type lectin domain involved in carbohydrate binding. They are expressed by intestinal epithelial cells. Colonization of germ-free mice and intestinal infection with pathogens increase the expression of Reg3g and Reg3b in the murine ileum. Reg3g is directly bactericidal for gram-positive bacteria, but the exact role of Reg3b in bacterial infections is unknown. To investigate the possible protective role of Reg3b in intestinal infection, Reg3b knockout (Reg3b(-/-)) mice and wild-type (WT) mice were orally infected with gram-negative Salmonella enteritidis or gram-positive Listeria monocytogenes. At day 2 after oral Listeria infection and at day 4 after oral Salmonella infection, mice were sacrificed to collect intestinal and other tissues for pathogen quantification. Protein expression of Reg3b and Reg3g was determined in intestinal mucosal scrapings of infected and noninfected mice. In addition, ex vivo binding of ileal mucosal Reg3b to Listeria and Salmonella was investigated. Whereas recovery of Salmonella or Listeria from feces of Reg3b(-/-) mice did not differ from that from feces of WT mice, significantly higher numbers of viable Salmonella, but not Listeria, bacteria were recovered from the colon, mesenteric lymph nodes, spleen, and liver of the Reg3b(-/-) mice than from those of WT mice. Mucosal Reg3b binds to both bacterial pathogens and may interfere with their mode of action. Reg3b plays a protective role against intestinal translocation of the gram-negative bacterium S. enteritidis in mice but not against the gram-positive bacterium L. monocytogenes.
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35
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Effect of selective enrichment media on selectivity and isolation of Listeria from non-Listeria strains in suspended cell culture. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.proeng.2012.01.1245] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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36
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Singla R, Ganguli A, Ghosh M. Physicochemical and Nutritional Characteristics of Organic Acid-Treated Button Mushrooms (Agaricus bisporous). FOOD BIOPROCESS TECH 2010. [DOI: 10.1007/s11947-010-0457-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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37
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Noriega E, Laca A, Díaz M. Decisive role of structure in food microbial colonization and implications for predictive microbiology. J Food Prot 2010; 73:938-51. [PMID: 20501046 DOI: 10.4315/0362-028x-73.5.938] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Predictive models must consider the significant effect of the physical structure of the food on the magnitude and type of microbial growth. Before such models are developed, a thorough characterization of the food structure is mandatory because this information will determine the modeling approach. In this work, several physical structures common in poultry products were classified and described. Chicken breast skin and flesh and minced breasts were examined by scanning electron microscopy and compared with a meat-based model food. Such systems were surface or internally inoculated with Listeria innocua and incubated at 25 degrees C for 24 h. Different structures, including several substructures, found in the studied systems affected microbial distribution and growth. Based on these experimental findings, the most suitable type of model for each physical structure was determined. This information provides further clarification for predictive microbiology models.
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Affiliation(s)
- E Noriega
- Department of Chemical Engineering and Environmental Technology, Faculty of Chemistry, University of Oviedo, C. Julián Clavería, s/n, 33006 Oviedo, Spain
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38
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Pereira CI, Graça JA, Ogando NS, Gomes AMP, Malcata FX. Bacterial dynamics in model cheese systems, aiming at safety and quality of Portuguese-style traditional ewe's cheeses. J Food Prot 2009; 72:2243-51. [PMID: 19903385 DOI: 10.4315/0362-028x-72.11.2243] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
An experiment using model ewe's milk cheeses was designed to characterize microbial interactions that arise in actual raw milk cheese environments. These model cheeses were manufactured according to Portuguese artisanal practices, except that the microbial load and biodiversity were fully controlled: single potential pathogens and spoilage bacteria, or a combination thereof, were combined at various initial inoculum levels in sterilized raw ewe's milk with several lactic acid bacteria (LAB) normally found in traditional cheeses. Viable microbial counts were monitored throughout a 60-day ripening period. Two alternative mathematical approaches were used to fit the experimental data generated in terms of population dynamics: percent of inhibition and D-values. These were able to explain the complex competitive interactions between the contaminant microorganisms and the LAB adventitious populations. In general, the tested LAB were less able to inhibit contaminants present in combination and in higher concentrations. Lactococcus lactis, with its strong acidifying potential, was the most effective factor in controlling the unwanted bacterial population, especially single Staphylococcus aureus. The two lactobacilli studied, especially Lactobacillus brevis, were shown to be less effective; Escherichia coli and Listeria innocua were the contaminants least inhibited by the LAB.
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Affiliation(s)
- Cláudia I Pereira
- CBQF/Escola Superior de Biotecnologia, Universidade Católica Portuguesa, P-4200-072 Porto, Portugal
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39
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Akkaya L, Telli R, Sagdic O. Growth-Death Kinetics ofListeria Monocytogenesin Strained Yogurt. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2009. [DOI: 10.1080/10942910801995606] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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40
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41
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Thermal inactivation of Listeria monocytogenes in ground beef under isothermal and dynamic temperature conditions. J FOOD ENG 2009. [DOI: 10.1016/j.jfoodeng.2008.07.011] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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42
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Huang L. Growth Kinetics of Listeria monocytogenes in Broth and Beef Frankfurters—Determination of Lag Phase Duration and Exponential Growth Rate under Isothermal Conditions. J Food Sci 2008; 73:E235-42. [DOI: 10.1111/j.1750-3841.2008.00785.x] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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43
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Porsby CH, Vogel BF, Mohr M, Gram L. Influence of processing steps in cold-smoked salmon production on survival and growth of persistent and presumed non-persistent Listeria monocytogenes. Int J Food Microbiol 2008; 122:287-95. [DOI: 10.1016/j.ijfoodmicro.2008.01.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2007] [Revised: 01/03/2008] [Accepted: 01/15/2008] [Indexed: 11/26/2022]
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44
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CEYLAN Z, DEMİRKAYA A, ADIGÜZEL G. INCIDENCE OF LISTERIA MONOCYTOGENES IN RETAIL CHICKEN MEAT AND ESTABLISHING RELATIONSHIP WITH SOME BACTERIA BY LOGISTIC REGRESSION. J FOOD QUALITY 2008. [DOI: 10.1111/j.1745-4557.2007.00188.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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45
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Kokkinakis E, Boskou G, Fragkiadakis GA, Kokkinaki A, Lapidakis N. Microbiological quality of tomatoes and peppers produced under the good agricultural practices protocol AGRO 2-1 & 2-2 in Crete, Greece. Food Control 2007. [DOI: 10.1016/j.foodcont.2006.12.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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46
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Huang L, Sites J. Elimination of Listeria monocytogenes on Hotdogs by Infrared Surface Treatment. J Food Sci 2007; 73:M27-31. [DOI: 10.1111/j.1750-3841.2007.00589.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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47
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Effects of lactic acid and lauricidin on the survival of Listeria monocytogenes, Salmonella enteritidis and Escherichia coli O157:H7 in chicken breast stored at 4°C. Food Control 2007. [DOI: 10.1016/j.foodcont.2006.05.015] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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48
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Huang L. Computer simulation of heat transfer during in-package pasteurization of beef frankfurters by hot water immersion. J FOOD ENG 2007. [DOI: 10.1016/j.jfoodeng.2006.07.013] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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49
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Huang L. Numerical Analysis of Survival of Listeria monocytogenes during In-Package Pasteurization of Frankfurters by Hot Water Immersion. J Food Sci 2007; 72:E285-92. [DOI: 10.1111/j.1750-3841.2007.00351.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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50
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Huang L, Sites J. Automatic control of a microwave heating process for in-package pasteurization of beef frankfurters. J FOOD ENG 2007. [DOI: 10.1016/j.jfoodeng.2006.05.019] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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