John B Luchansky

Summary

Affiliation: Eastern Regional Research Center
Country: USA

Publications

  1. ncbi request reprint Effectiveness of spraying with tween 20 and lactic acid in decontaminating inoculated Escherichia coli O157:H7 and indigenous Escherichia coli biotype I on beef
    Mehmet Calicioglu
    Department of Animal Sciences, University of Wisconsin Madison, USA
    J Food Prot 65:26-32. 2002
  2. ncbi request reprint Recovery of Listeria monocytogenes from vacuum-sealed packages of frankfurters: comparison of the U.S. Department of Agriculture (USDA) food safety and inspection service product composite enrichment method, the USDA Agricultural Research Service (ARS) pr
    John B Luchansky
    US Department of Agriculture, Agricultural Research Service, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 65:567-70. 2002
  3. ncbi request reprint Hot water postprocess pasteurization of cook-in-bag turkey breast treated with and without potassium lactate and sodium diacetate and acidified sodium chlorite for control of Listeria monocytogenes
    John B Luchansky
    Microbial Food Safety Research Unit, U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 69:39-46. 2006
  4. doi request reprint Fate of Shiga toxin-producing O157:H7 and non-O157:H7 Escherichia coli cells within blade-tenderized beef steaks after cooking on a commercial open-flame gas grill
    John B Luchansky
    U S Department of Agriculture, Agricultural Research Service, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 75:62-70. 2012
  5. ncbi request reprint Recovery rate of Listeria monocytogenes from commercially prepared frankfurters during extended refrigerated storage
    F Morgan Wallace
    U S Department of Agriculture, Agricultural Research Service, Microbial Food Safety Research Unit, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 66:584-91. 2003
  6. doi request reprint Potential for growth of Clostridium perfringens from spores in pork scrapple during cooling
    Vijay K Juneja
    USDA ARS ERRC, Wyndmoor, Pennsylvania 19038, USA
    Foodborne Pathog Dis 7:153-7. 2010
  7. ncbi request reprint Use of pulsed-field gel electrophoresis to monitor a five-strain mixture of Listeria monocytogenes in frankfurter packages
    Anna C S Porto
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Microbial Food Safety Research Unit, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 66:1465-8. 2003
  8. doi request reprint Evaluation of fermentation, drying, and/or high pressure processing on viability of Listeria monocytogenes, Escherichia coli O157:H7, Salmonella spp., and Trichinella spiralis in raw pork and Genoa salami
    Anna C S Porto-Fett
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Microbial Food Safety Research Unit, 600 East Mermaid Lane, Wyndmoor, PA 19038, USA
    Int J Food Microbiol 140:61-75. 2010
  9. ncbi request reprint Fate of surface-inoculated Escherichia coli O157:H7, Listeria monocytogenes, and Salmonella typhimurium on kippered beef during extended storage at refrigeration and abusive temperatures
    Renata Jacob
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Microbial Food Safety Research Unit, 600 E Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 72:403-7. 2009
  10. ncbi request reprint Validation of a commercial process for inactivation of Escherichia coli O157:H7, Salmonella typhimurium, and Listeria monocytogenes on the surface of whole muscle beef jerky
    Anna C S Porto-Fett
    U S Department of Agriculture, Agricultural Research Service, Eastern Research Regional Center, Microbial Food Safety Research Unit, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 71:918-26. 2008

Collaborators

Detail Information

Publications41

  1. ncbi request reprint Effectiveness of spraying with tween 20 and lactic acid in decontaminating inoculated Escherichia coli O157:H7 and indigenous Escherichia coli biotype I on beef
    Mehmet Calicioglu
    Department of Animal Sciences, University of Wisconsin Madison, USA
    J Food Prot 65:26-32. 2002
    ..These results demonstrate that the treatment of beef carcasses with LA reduces the number of viable E. coli O157:H7 cells and that this inactivation or removal by LA is enhanced by prespraying of the carcass with a 5% solution of TW20...
  2. ncbi request reprint Recovery of Listeria monocytogenes from vacuum-sealed packages of frankfurters: comparison of the U.S. Department of Agriculture (USDA) food safety and inspection service product composite enrichment method, the USDA Agricultural Research Service (ARS) pr
    John B Luchansky
    US Department of Agriculture, Agricultural Research Service, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 65:567-70. 2002
    ..monocytogenes and establishing the levels of the pathogen that may be on the surface of ready-to-eat foods such as frankfurters...
  3. ncbi request reprint Hot water postprocess pasteurization of cook-in-bag turkey breast treated with and without potassium lactate and sodium diacetate and acidified sodium chlorite for control of Listeria monocytogenes
    John B Luchansky
    Microbial Food Safety Research Unit, U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 69:39-46. 2006
    ..However, as used in this study, the potassium lactate-sodium diacetate solution and acidified sodium chlorite were only somewhat effective at controlling the subsequent outgrowth of this pathogen during refrigerated storage...
  4. doi request reprint Fate of Shiga toxin-producing O157:H7 and non-O157:H7 Escherichia coli cells within blade-tenderized beef steaks after cooking on a commercial open-flame gas grill
    John B Luchansky
    U S Department of Agriculture, Agricultural Research Service, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 75:62-70. 2012
    ..Both ECOH and STEC behaved similarly in response to heat, in that cooking eliminated significant numbers of both pathogen types; however, some survivors were recovered due, presumably, to uneven heating of the blade-tenderized steaks...
  5. ncbi request reprint Recovery rate of Listeria monocytogenes from commercially prepared frankfurters during extended refrigerated storage
    F Morgan Wallace
    U S Department of Agriculture, Agricultural Research Service, Microbial Food Safety Research Unit, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 66:584-91. 2003
    ..This study provides estimates of the prevalence, types, and viability of L. monocytogenes associated with commercially prepared frankfurters during extended refrigerated storage...
  6. doi request reprint Potential for growth of Clostridium perfringens from spores in pork scrapple during cooling
    Vijay K Juneja
    USDA ARS ERRC, Wyndmoor, Pennsylvania 19038, USA
    Foodborne Pathog Dis 7:153-7. 2010
    ..0 log(10) to approximately 7.8 log(10) CFU/g. Thus, scrapple must be cooled after cooking to 7.2 degrees C within 6.5 h, but for no more than 14 h, to prevent a food safety hazard from outgrowth of C. perfringens spores during cooling...
  7. ncbi request reprint Use of pulsed-field gel electrophoresis to monitor a five-strain mixture of Listeria monocytogenes in frankfurter packages
    Anna C S Porto
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Microbial Food Safety Research Unit, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 66:1465-8. 2003
    ....
  8. doi request reprint Evaluation of fermentation, drying, and/or high pressure processing on viability of Listeria monocytogenes, Escherichia coli O157:H7, Salmonella spp., and Trichinella spiralis in raw pork and Genoa salami
    Anna C S Porto-Fett
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Microbial Food Safety Research Unit, 600 East Mermaid Lane, Wyndmoor, PA 19038, USA
    Int J Food Microbiol 140:61-75. 2010
    ..These data validate that HPP can be used as an alternate to curing for trichinae control and as a post-process intervention to meet performance standards and/or compliance guidelines for the three microbial pathogens evaluated herein...
  9. ncbi request reprint Fate of surface-inoculated Escherichia coli O157:H7, Listeria monocytogenes, and Salmonella typhimurium on kippered beef during extended storage at refrigeration and abusive temperatures
    Renata Jacob
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Microbial Food Safety Research Unit, 600 E Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 72:403-7. 2009
    ..These data establish that kippered beef does not provide an environment conducive to proliferation of these pathogens...
  10. ncbi request reprint Validation of a commercial process for inactivation of Escherichia coli O157:H7, Salmonella typhimurium, and Listeria monocytogenes on the surface of whole muscle beef jerky
    Anna C S Porto-Fett
    U S Department of Agriculture, Agricultural Research Service, Eastern Research Regional Center, Microbial Food Safety Research Unit, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 71:918-26. 2008
    ..5 h also satisfied the U.S. Food Safety and Inspection Service standard of identity (moisture-to-protein ratio < or = 0.75:1) and/or shelf-stability (water activity < or = 0.8) requirements for jerky...
  11. ncbi request reprint Testing of swine feces obtained through the National Animal Health Monitoring System's Swine 2000 study for the presence of Escherichia coli O157:H7
    Ingrid Feder
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 E Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 70:1489-92. 2007
    ....
  12. ncbi request reprint Validation of cooking times and temperatures for thermal inactivation of Yersinia pestis strains KIM5 and CDC-A1122 in irradiated ground beef
    Anna C S Porto-Fett
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Microbial Food Safety Research Unit, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 72:564-71. 2009
    ..S. Food and Drug Administration Food Code, appreciably lessens the likelihood, severity, and/or magnitude of consumer illness if the ground beef were purposefully contaminated even with relatively high levels of Y. pestis...
  13. ncbi request reprint Effect of reheating on viability of a five-strain mixture of Listeria monocytogenes in vacuum-sealed packages of frankfurters following refrigerated or frozen storage
    Anna C S Porto
    US Department of Agriculture, Agricultural Research Service, Microbial Food Safety Research Unit, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 67:71-6. 2004
    ..monocytogenes prior to packaging and after unpackaging, are adequately reheated prior to consumption...
  14. ncbi request reprint Thermal inactivation of Escherichia coli O157:H7 in blade-tenderized beef steaks cooked on a commercial open-flame gas grill
    John B Luchansky
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Microbial Food Safety Research Unit, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 72:1404-11. 2009
    ..These data validate that cooking on a commercial gas grill is effective at eliminating relatively low levels of the pathogen that may be distributed throughout a blade-tenderized steak...
  15. ncbi request reprint Validation of the USDA/ARS package rinse method for recovery of Listeria monocytogenes from naturally contaminated, commercially prepared frankfurters
    F Morgan Wallace
    US Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Microbial Food Safety Research Unit, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 66:1920-3. 2003
    ..monocytogenes...
  16. doi request reprint Inactivation of Shiga toxin-producing O157:H7 and non-O157:H7 Shiga toxin-producing Escherichia coli in brine-injected, gas-grilled steaks
    John B Luchansky
    U S Department of Agriculture, Agricultural Research Service, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 74:1054-64. 2011
    ..1 °C (160 °F) did not kill all cells due, primarily, to nonuniform heating (i.e., cold spots) within the meat...
  17. doi request reprint Fate of Shiga toxin-producing O157:H7 and non-O157:H7 Escherichia coli cells within refrigerated, frozen, or frozen then thawed ground beef patties cooked on a commercial open-flame gas or a clamshell electric grill
    John B Luchansky
    Agricultural Research Service, U S Department of Agriculture, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 76:1500-12. 2013
    ..0 or 65.5°C. Thus, cooking ground beef patties that were refrigerated, frozen, or freeze-thawed to internal temperatures of 71.1 and 76.6°C was effective for eliminating ca. 5.1 to 7.0 log CFU of E. coli O157:H7 and STEC per g. ..
  18. doi request reprint Fate of Escherichia coli O157:H7 in mechanically tenderized beef prime rib following searing, cooking, and holding under commercial conditions
    Anna C S Porto-Fett
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 76:405-12. 2013
    ..0-log reduction of ECOH in blade tenderized prime rib, it would be necessary to sear at 260°C for 15 min, cook prime rib to internal temperatures of 48.9, 60.0, or 71.1°C, and then hold at 60.0°C for at least 8 h...
  19. doi request reprint Modeling the survival of Escherichia coli O157:H7, Listeria monocytogenes, and Salmonella Typhimurium during fermentation, drying, and storage of soudjouk-style fermented sausage
    Cheng An Hwang
    Microbial Food Safety Research Unit, Eastern Regional Research Center, Agricultural Research Service, U S Department of Agriculture, 600 E Mermaid Lane, Wyndmoor, PA 19038, USA
    Int J Food Microbiol 129:244-52. 2009
    ..The resulting models may also be used for estimating the survival of E. coli O157:H7 and S. Typhimurium in other similar fermented sausage during fermentation and storage...
  20. ncbi request reprint Evaluation of nisin-coated cellulose casings for the control of Listeria monocytogenes inoculated onto the surface of commercially prepared frankfurters
    John B Luchansky
    Eastern Regional Research Center, Microbial Food Safety Research Unit, Agricultural Research Service, U S Department of Agriculture, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 67:1017-21. 2004
    ..These data also establish that cellulose casings coated with nisin display only moderate antilisterial activity in vacuum-sealed packages of commercially prepared frankfurters during storage at 4 degrees C...
  21. ncbi request reprint An assessment of pasteurization treatment of water, media, and milk with respect to Bacillus spores
    John S Novak
    Microbial Food Safety Research Unit, US Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 68:751-7. 2005
    ..05) to the pasteurization temperatures tested. As such, pasteurization alone would not ensure complete inactivation of these spore-forming pathogens in dH2O, synthetic media, or skim milk...
  22. doi request reprint Removal of Salmonella Enteritidis from commercial unpasteurized liquid egg white using pilot scale cross flow tangential microfiltration
    Sudarsan Mukhopadhyay
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional, Research Center, 600 E Mermaid Lane, Wyndmoor, PA 19038, USA
    Int J Food Microbiol 142:309-17. 2010
    ..Microbial removal efficiency was at least, on average, 6.8Log(10)CFU/mL (limit of detection < or =0.5Log(10)CFU/mL). Functional property analysis indicated that the MF process did not alter the foaming power of LEW...
  23. ncbi request reprint Viability of a five-strain mixture of Listeria monocytogenes in vacuum-sealed packages of frankfurters, commercially prepared with and without 2.0 or 3.0% added potassium lactate, during extended storage at 4 and 100 degrees C
    Anna C S Porto
    US Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Microbial Food Safety Research Unit, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 65:308-15. 2002
    ..0% (P < 0.0004) or 3.0% (P < 0.0001) potassium lactate as an ingredient in frankfurters can appreciably enhance safety by inhibiting or delaying the growth of L. monocytogenes during storage at refrigeration and abuse temperatures...
  24. pmc Use of pulsed-field gel electrophoresis to characterize the heterogeneity and clonality of salmonella isolates obtained from the carcasses and feces of swine at slaughter
    Laura Wonderling
    Eastern Regional Research Center, Agricultural Research Service, U S Department of Agriculture, 600 E Mermaid Lane, Wyndmoor, PA 19038, USA
    Appl Environ Microbiol 69:4177-82. 2003
    ..In addition, these results indicate that the examination of multiple Salmonella isolates from positive samples is necessary to determine the variety of potential contaminants of swine carcasses during slaughter and processing...
  25. pmc Relatedness of Listeria monocytogenes Isolates recovered from selected ready-to-eat foods and listeriosis patients in the United States
    Stefanie Evans Gilbreth
    Microbial Food Safety Research Unit, Eastern Regional Research Center, Agricultural Research Service, U S Department of Agriculture, Wyndmoor, Pennsylvania 19038, USA
    Appl Environ Microbiol 71:8115-22. 2005
    ..These data should help define the distribution and relatedness of isolates found in RTE foods in comparison with isolates that cause listeriosis...
  26. doi request reprint Viability of Listeria monocytogenes on Boneless, Water-Added Hams, Commercially Prepared with and without Food-Grade Chemicals, during Extended Storage at 4 and/or -2.2°C
    John B Luchansky
    U S Department of Agriculture, Agricultural Research Service, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 79:613-9. 2016
    ..2°C. In general, deep chilling hams was listericidal, and inclusion of antimicrobials in the formulation suppressed outgrowth of L. monocytogenes during extended cold storage. ..
  27. doi request reprint Comparative Efficacy of Potassium Levulinate with and without Potassium Diacetate and Potassium Propionate versus Potassium Lactate and Sodium Diacetate for Control of Listeria monocytogenes on Commercially Prepared Uncured Turkey Breast
    Anna C S Porto-Fett
    U S Department of Agriculture, Agricultural Research Service, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 78:927-33. 2015
    ..Our results validate the use of KLEV to inhibit outgrowth of L. monocytogenes during refrigerated storage of uncured turkey breast. KLEV is at least as effective as KLD as an antilisterial agent. ..
  28. doi request reprint Thermal inactivation of Escherichia coli O157:H7 and non-O157 shiga toxin-producing Escherichia coli cells in mechanically tenderized veal
    John B Luchansky
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 77:1201-6. 2014
    ..coli in tenderized veal are equally effective against the additional six non-O157 Shiga toxin-producing strains investigated herein. ..
  29. ncbi request reprint Analyses of the putative Crp/Fnr family of transcriptional regulators of a serotype 4b strain of Listeria monocytogenes
    Gaylen A Uhlich
    Microbial Food Safety Research Unit, Eastern Regional Research Center, Agricultural Research Service, US Department of Agriculture, Wyndmoor, Pennsylvania 19038, USA
    Food Microbiol 23:300-6. 2006
    ..These results suggest that certain members of the putative Crp/Fnr family in L. monocytogenes may function in response to oxidative stress similar to the Fnr-like protein (Flp) of other gram-positive bacteria...
  30. pmc Isolation of Escherichia coli O157:H7 from intact colon fecal samples of swine
    Ingrid Feder
    Microbial Biophysics and Residue Chemistry and Core Technologies, U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, Wyndmoor, Pennsylvania 19038, USA
    Emerg Infect Dis 9:380-3. 2003
    ..We demonstrate that swine in the United States can harbor potentially pathogenic E. coli O157:H7...
  31. doi request reprint Effect of Deep-Frying or Conventional Oven Cooking on Thermal Inactivation of Shiga Toxin-Producing Cells of Escherichia coli in Meatballs
    Anna C S Porto-Fett
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 79:723-31. 2016
    ..These results will help establish guidelines and best practices for cooking raw meatballs at both food service establishments and in the home. ..
  32. doi request reprint Viability of Listeria monocytogenes on uncured turkey breast commercially prepared with and without buffered vinegar during extended storage at 4 and 10°C
    Anna C S Porto-Fett
    U S Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    J Food Prot 77:987-92. 2014
    ..0.3 log CFU per slice. Inclusion of BV as an ingredient in uncured turkey breast, alone or in combination with VSC added to the package, appreciably suppressed outgrowth of L. monocytogenes during an extended refrigerated shelf life...
  33. pmc Behavior of Bacillus anthracis strains Sterne and Ames K0610 in sterile raw ground beef
    Mark L Tamplin
    Microbial Food Safety Research Unit, Eastern Regional Research Center, Agricultural Research Service, United States Department of Agriculture, 600 East Mermaid Lane, Wyndmoor, Pennsylvania 19038, USA
    Appl Environ Microbiol 74:1111-6. 2008
    ..The inability of B. anthracis to grow between 2 and 16 degrees C, a relatively low growth rate, and inactivation at elevated temperatures would likely reduce the risk for recommended ground-beef handling and preparation procedures...
  34. ncbi request reprint A case report of sporadic ovine listerial menigoencephalitis in Iowa with an overview of livestock and human cases
    Irene V Wesley
    Pre Harvest Food Safety and Enteric Diseases Research Unit, National Animal Disease Center, USDA, Agricultural Research Service, Ames, IA 50010, USA
    J Vet Diagn Invest 14:314-21. 2002
    ..Environmental isolates were identified as L. monocytogenes serotypes 1 and 4. However, by PFGE, none matched the profile of the single clinical isolate. Thus, the ultimate source of contamination is unknown...
  35. ncbi request reprint Viability of Escherichia coli O157:H7 during manufacturing and storage of a fermented, semidry soudjouk-style sausage
    Mehmet Calicioglu
    Meat Science and Muscle Biology Laboratory, University of Wisconsin Madison, 53706, USA
    J Food Prot 65:1541-4. 2002
    ..These results indicate that naturally fermented old-country-type sausage may allow the survival of E. coli O157:H7 in the absence of controlled fermentation, postfermentation cooking, and/or an ambient-storage processing step...
  36. ncbi request reprint Effects of suspension in emulsified wiener or incubation in wiener packages on the virulence of Listeria monocytogenes Scott A in intragastrically inoculated A/J mice
    Nancy G Faith
    Department of Pathobiological Sciences, School of Veterinary Medicine, and Food Research Institute, College of Agriculture and Life Sciences, University of Wisconsin Madison, Madison, Wisconsin 53706, USA
    J Food Prot 68:597-601. 2005
    ..These findings suggest that the ability of L. monocytogenes Scott A to cause systemic infection following introduction into the gastrointestinal tract was not improved by incubation with wieners or suspension in a meat matrix...
  37. pmc Retail survey of Brazilian milk and Minas frescal cheese and a contaminated dairy plant to establish prevalence, relatedness, and sources of Listeria monocytogenes isolates
    J Renaldi F Brito
    Brazilian Agricultural Research Corporation Embrapa
    Appl Environ Microbiol 74:4954-61. 2008
    ..Studies are ongoing to quantify the prevalence, levels, and types of L. monocytogenes in MFC and associated processing plants to lessen the likelihood of listeriosis in Brazil...
  38. ncbi request reprint Animal and environmental impact on the presence and distribution of Salmonella and Escherichia coli in hydroponic tomato greenhouses
    Leopoldo Orozco R
    Laboratorio de Inocuidad Microbiana de Agua y Alimentos, Departamento de Investigación y Posgrado en Alimentos, Facultad de Quimica, Universidad Autonoma de Queretaro, Queretaro, Qro C P 76000, Mexico
    J Food Prot 71:676-83. 2008
    ..The level of protection provided by hydroponic greenhouses does not exclude the eventuality that enteric pathogenic bacteria can gain access through various avenues...
  39. pmc Whole genome comparisons of serotype 4b and 1/2a strains of the food-borne pathogen Listeria monocytogenes reveal new insights into the core genome components of this species
    Karen E Nelson
    The Institute for Genomic Research, 9712 Medical Center Drive, Rockville, MD 20850, USA
    Nucleic Acids Res 32:2386-95. 2004
    ..Whole genome comparative analyses revealed that the L.monocytogenes genomes are essentially syntenic, with the majority of genomic differences consisting of phage insertions, transposable elements and SNPs...
  40. ncbi request reprint A P60 mutant of Listeria monocytogenes is impaired in its ability to cause infection in intragastrically inoculated mice
    Nancy G Faith
    Department of Pathobiological Sciences, School of Veterinary Medicine and Food Research Institute, University of Wisconsin Madison, Madison, WI 53706, USA
    Microb Pathog 42:237-41. 2007
    ..These findings indicate that P60 is required for maximal virulence of L. monocytogenes in the gastrointestinal tract of mice...
  41. ncbi request reprint Intragastric inoculation with a cocktail of Listeria monocytogenes strains does not potentiate the severity of infection in A/J mice compared to inoculation with the individual strains comprising the cocktail
    Nancy G Faith
    Department of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin Madison, Madison, Wisconsin 53706, USA
    J Food Prot 69:2664-70. 2006
    ..Nor did we observe any consistent relationship between susceptibility of L. monocytogenes strains to inactivation in synthetic gastric fluid in vitro and virulence in mice...