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8. What Is the Problem with L. monocytogenes?

Author

Jordan, Kieran, Leong, Dara, Álvarez Ordóñez, Avelino, Hartel, Richard W, Editor-in-chief, Rodriguez-Lazaro, David, Series editor, Clark, J. Peter, Series editor, Topping, David, Series editor, Finley, John W., Series editor, Roos, Yrjö, Series editor, Jordan, Kieran, Leong, Dara, and Álvarez Ordóñez, Avelino

Published
2015
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9. Reducing the Occurrence of L. monocytogenes

Author

Jordan, Kieran, Leong, Dara, Álvarez Ordóñez, Avelino, Hartel, Richard W, Editor-in-chief, Rodriguez-Lazaro, David, Series editor, Clark, J. Peter, Series editor, Topping, David, Series editor, Finley, John W., Series editor, Roos, Yrjö, Series editor, Jordan, Kieran, Leong, Dara, and Álvarez Ordóñez, Avelino

Published
2015
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10. Sampling and Laboratory Analysis

Author

Jordan, Kieran, Leong, Dara, Álvarez Ordóñez, Avelino, Hartel, Richard W, Editor-in-chief, Rodriguez-Lazaro, David, Series editor, Clark, J. Peter, Series editor, Topping, David, Series editor, Finley, John W., Series editor, Roos, Yrjö, Series editor, Jordan, Kieran, Leong, Dara, and Álvarez Ordóñez, Avelino

Published
2015
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14. National Listeria Monitoring Programmes

Author

Jordan, Kieran, Leong, Dara, Álvarez Ordóñez, Avelino, Hartel, Richard W, Editor-in-chief, Rodriguez-Lazaro, David, Series editor, Clark, J. Peter, Series editor, Topping, David, Series editor, Finley, John W., Series editor, Roos, Yrjö, Series editor, Jordan, Kieran, Leong, Dara, and Álvarez Ordóñez, Avelino

Published
2015
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19. Introduction

Author

Jordan, Kieran, Leong, Dara, Álvarez Ordóñez, Avelino, Hartel, Richard W, Editor-in-chief, Rodriguez-Lazaro, David, Series editor, Clark, J. Peter, Series editor, Topping, David, Series editor, Finley, John W., Series editor, Roos, Yrjö, Series editor, Jordan, Kieran, Leong, Dara, and Álvarez Ordóñez, Avelino

Published
2015
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20. Gene Manipulation

Author

Jordan, Kieran, Leong, Dara, Álvarez Ordóñez, Avelino, Hartel, Richard W, Editor-in-chief, Rodriguez-Lazaro, David, Series editor, Clark, J. Peter, Series editor, Topping, David, Series editor, Finley, John W., Series editor, Roos, Yrjö, Series editor, Jordan, Kieran, Leong, Dara, and Álvarez Ordóñez, Avelino

Published
2015
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22. Contributors

Author

Abrahamsen, Roger K., primary, Ardö, Ylva, additional, Arora, Sumit, additional, Auty, Mark A.E., additional, Bennett, Rodney J., additional, Beresford, Tom P., additional, Bisig, Walter, additional, Bonnarme, Pascal, additional, Cantor, Mette Dines, additional, Carr, Alistair J., additional, Ciocia, Felicia, additional, Cogan, Timothy M., additional, Collins, Yvonne F., additional, Coton, Monika, additional, Cotter, Paul D., additional, Creamer, Lawrence K., additional, Crow, Vaughan L., additional, Düsterhöft, Eva-Maria, additional, Dejmek, Petr, additional, Delahunty, Conor M., additional, Di Cagno, Raffaella, additional, Dobson, Alan D.W., additional, Donnelly, Catherine W., additional, Drake, Mary A., additional, Engels, Wim, additional, Everett, David W., additional, Fagan, Colette C., additional, Farkye, Nana Y., additional, Fitzgerald, Gerald F., additional, Fox, Patrick F., additional, Fröhlich-Wyder, Marie-Therese, additional, Ganesan, Balasubramanian, additional, Gilles, John, additional, Gobbetti, Marco, additional, Gras, Sally L., additional, Guggisberg, Dominik, additional, Guinee, Timothy P., additional, Hansen, Tine Kronborg, additional, Hayaloglu, A. Adnan, additional, Heap, Howard A., additional, Helinck, Sandra, additional, Hickey, Michael, additional, Honoré, Craig G., additional, Horne, David S., additional, Huppertz, Thom, additional, Irlinger, Françoise, additional, J. D’Amico, Dennis, additional, Jakob, Ernst, additional, Jany, Jean Luc, additional, Jaros, Doris, additional, Johnston, Keith A., additional, Jordan, Kieran N., additional, Kelly, Alan L., additional, Khetra, Yogesh, additional, Kilcawley, Kieran N., additional, Landaud, Sophie, additional, Lawrence, Robert C., additional, Legg, Andrew K., additional, Lucey, John A., additional, Magboul, Abdallah A.A., additional, Mahony, Jennifer, additional, Mateo, Maria J., additional, Maubois, Jean-Louis, additional, McAuliffe, Olivia, additional, McMahon, Donald J., additional, McSweeney, Paul L.H., additional, Medina, M., additional, Mistry, Vikram.V., additional, Mounier, Jérôme, additional, Abeijón Mukdsi, M.C., additional, Murphy, James, additional, Nuñez, M., additional, O’Brien, Nora M., additional, O’Callaghan, Donal J., additional, O’Connor, Thomas P., additional, O’Sullivan, Orla, additional, Oberg, Craig J., additional, Ong, Lydia, additional, Ottogalli, Giorgio, additional, Panthi, Ram R., additional, Parente, Eugenio, additional, Powell, Ian B., additional, Rohm, Harald, additional, Samal, Prabandha K., additional, Sheehan, J.J. (Diarmuid), additional, Skeie, Siv, additional, Spinnler, Henri E., additional, Spinnler, Henry-Eric, additional, Thierry, Anne, additional, Turgay, Meral, additional, Uniacke-Lowe, Therese, additional, Upadhyay, Vivek K., additional, van den Tempel, Tatjana, additional, van Sinderen, Douwe, additional, Wechsler, Daniel, additional, Weimer, Bart C., additional, and Wilkinson, Martin G., additional

Published
2017
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23. Validation of a Loop-Mediated Amplification/ISO 6579-Based Method for Analysing Soya Meal for the Presence of Salmonella enterica

Author

D’Agostino, Martin, Robles, Susana, Hansen, Flemming, Ntafis, Vasileios, Ikonomopoulos, John, Kokkinos, Petros, Alvarez-Ordonez, Avelino, Jordan, Kieran, Delibato, Elisabetta, Kukier, Elżbieta, Sieradzki, Zbigniew, Kwiatek, Krzysztof, Milanov, Dubravka, Petrović, Tamaš, Gonzalez-Garcia, Patricia, Lazaro, David Rodriguez, Jackson, Emily E., Forsythe, Stephen J., O’Brien, Lorna, and Cook, Nigel

Published
2016
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26. Conclusions

Author

Jordan, Kieran, Leong, Dara, Álvarez Ordóñez, Avelino, Hartel, Richard W, Editor-in-chief, Rodriguez-Lazaro, David, Series editor, Clark, J. Peter, Series editor, Topping, David, Series editor, Finley, John W., Series editor, Roos, Yrjö, Series editor, Jordan, Kieran, Leong, Dara, and Álvarez Ordóñez, Avelino

Published
2015
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32. Introduction

Author

Jordan, Kieran, primary, Leong, Dara, additional, and Álvarez Ordóñez, Avelino, additional

Published
2015
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34. Conclusions

Author

Jordan, Kieran, primary, Leong, Dara, additional, and Álvarez Ordóñez, Avelino, additional

Published
2015
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42. Editorial advisors

Author

Feng, Peter, primary, Sofos, John, additional, Pillai, Suresh, additional, Griffiths, Mansel, additional, and Jordan, Kieran, additional

Published
2014
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44. Contributor contact details

Author

Hoorfar, Jeffrey, primary, Jochumsen, Inge Bodil, additional, Jensen, Annette N., additional, Baggesen, Dorte L., additional, Snellman, Erick A., additional, Uyttendaele, Mieke, additional, Jacxsens, L., additional, Van Boxstael, S., additional, Bolton, Declan J., additional, Edrington, Tom S., additional, Nisbet, David J., additional, Callaway, Todd. R., additional, Warriner, Keith, additional, Namvar, Azadeh, additional, Luo, Yaguang, additional, Ingram, David T., additional, Khurana, Karan, additional, Cederberg, Tommy Licht, additional, Chaidez, Cristobal, additional, Soto, Marcela, additional, Jimenez, Maribel, additional, Pimentel, David, additional, Burgess, Michael, additional, Zentek, Juergen, additional, Knorr, Fanny, additional, Mader, Anneluise, additional, Koseki, Shige, additional, Shayanfar, Shima, additional, Jordan, Kieran, additional, Casey, Aidan, additional, Hoehl, Andreas, additional, Bruggeman, Geert, additional, Lee, Alvin, additional, Pillai, Suresh D., additional, Blackburn, Carl, additional, Bogran, Carlos, additional, Ciolacu, Luminita, additional, Nicolau, Anca Ioana, additional, Hoorfar, J., additional, Daniels, Will, additional, Ye, Zhihua, additional, Chen, Song, additional, Wang, Fang, additional, Chen, Tianjin, additional, Xiao, Liang, additional, Feng, Peter, additional, Duffy, Geraldine, additional, Malorny, Burkhard, additional, Binet, Rachel, additional, Morales-Rayas, Rocío, additional, Griffiths, Mansel W., additional, Schultz, Anna Charlotte, additional, Markland, Sarah M., additional, Kniel, Kalmia E., additional, D’Souza, Doris H., additional, Smith, Michelle A., additional, Baloch, Mansoor A., additional, Luber, Petra, additional, Walter, Eduardo Henrique Miranda, additional, Kuaye, Arnaldo Yoshiteru, additional, Xing, Zengtao, additional, and Zhao, Xiaoyan, additional

Published
2014
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47. Theoretical and experimental considerations for bacteria sterilization using a novel multielectrode dielectric-barrier discharge system

Author

Forde, Edward, Guiney, Ivor, Arshak, Khalil, Adley, Catherine, Barry, Catherine, and Jordan, Kieran

Subjects
Dielectric devices -- Analysis, Plasma jets -- Analysis, Plasma jets -- Properties, Business, Chemistry, Electronics, Electronics and electrical industries
Abstract

A novel multielectrode dielectric-barrier discharge plasma system operating at atmospheric pressure in air, which has improved microbial inactivation properties is described. The interaction of high-voltage components necessary to create the discharge is outlined, and the unique configuration of electrodes driven by power insulated gate bipolar transistors is put forward., Active species gain is in evidence in this system due to the effective feedforward mechanism employed and are validated by carrying out microbial inactivation studies on E. coli. Both active species gain and microbial inactivation hypotheses are verified by numerical modeling. Index Terms--Dielectric-barrier discharge (DBD), indirect treatment, multielectrode, sterilization.

Published
2008

48. Genome sequence of Lactobacillus helveticus, an organism distinguished by selective gene loss and insertion sequence element expansion

Author

Callanan, Michael, Kaleta, Pawel, O'Callaghan, John, O'Sullivan, Orla, Jordan, Kieran, McAuliffe, Olivia, Sangrador-Vegas, Amaia, Slattery, Lydia, Fitzgerald, Gerald F., Beresford, Tom, and Ross, R. Paul

Subjects
Lactobacillus -- Genetic aspects, Lactobacillus -- Research, Biological diversity -- Research, Bacterial genetics -- Research, Biological sciences
Abstract

Mobile genetic elements are major contributing factors to the generation of genetic diversity in prokaryotic organisms. For example, insertion sequence (IS) elements have been shown to specifically contribute to niche adaptation by promoting a variety of genetic rearrangements. The complete genome sequence of the cheese culture Lactobacillus helveticus DPC 4571 was determined and revealed significant conservation compared to three nondairy gut lactobacilli. Despite originating from significantly different environments, 65 to 75% of the genes were conserved between the commensal and dairy lactobacilli, which allowed key niche-specific gene sets to be described. However, the primary distinguishing feature was 213 IS elements in the DPC 4571 genome, 10 times more than for the other lactobacilli. Moreover, genome alignments revealed an unprecedented level of genome stability between these four LactobaciUus species, considering the number of IS elements in the L. helveticus genome. Comparative analysis also indicated that the IS elements were not the primary agents of niche adaptation for the L. helveticus genome. A clear bias toward the loss of genes reported to be important for gut colonization was observed for the cheese culture, but there was no clear evidence of IS-associated gene deletion and decay for the majority of genes lost. Furthermore, an extraordinary level of sequence diversity exists between copies of certain IS elements in the DPC 4571 genome, indicating they may represent an ancient component of the L. helveticus genome. These data suggest a special unobtrusive relationship between the DPC 4571 genome and its mobile DNA complement.

Published
2008

49. The public health risk posed by Listeria monocytogenes in frozen fruit and vegetables including herbs, blanched during processing

Author

EFSA Panel on Biological Hazards (BIOHAZ), Koutsoumanis, Konstantinos, Alvarez‐Ordóñez, Avelino, Bolton, Declan, Bover‐Cid, Sara, Chemaly, Marianne, Davies, Robert, De Cesare, Alessandra, Herman, Lieve, Hilbert, Friederike, Lindqvist, Roland, Nauta, Maarten, Peixe, Luisa, Ru, Giuseppe, Simmons, Marion, Skandamis, Panagiotis, Suffredini, Elisabetta, Jordan, Kieran, Sampers, Imca, Wagner, Martin, Da Silva Felicio, Maria Teresa, Georgiadis, Marios, Messens, Winy, Mosbach‐Schulz, Olaf, Allende, Ana, Indústries Alimentàries, Funcionalitat i Seguretat Alimentària, Koutsoumanis K., Alvarez-Ordonez A., Bolton D., Bover-Cid S., Chemaly M., Davies R., De Cesare A., Herman L., Hilbert F., Lindqvist R., Nauta M., Peixe L., Ru G., Simmons M., Skandamis P., Suffredini E., Jordan K., Sampers I., Wagner M., Felicio M.T.D.S., Georgiadis M., Messens W., Mosbach-Schulz O., and Allende A.

Subjects
Agriculture and Food Sciences, Frozen vegetables, Blanched frozen vegetable, Food safety management system, control options, Plant Science, Growth, 010501 environmental sciences, medicine.disease_cause, 01 natural sciences, READY-TO-EAT, 0403 veterinary science, Hygiene, risk factors, TX341-641, Food science, THERMAL INACTIVATION, CROSS-CONTAMINATION, SMOKED FISH, media_common, education.field_of_study, QUANTITATIVE ASSESSMENT, public health risk, 04 agricultural and veterinary sciences, ESCHERICHIA-COLI, LEAFY GREENS, 663/664, Public health risk, 040301 veterinary sciences, Blanching, growth, Veterinary (miscellaneous), media_common.quotation_subject, Population, blanched frozen vegetables, TP1-1185, Biology, Microbiology, Listeria monocytogenes, SDG 3 - Good Health and Well-being, Control option, MICROBIAL RISK, medicine, education, FOOD SAFETY, 0105 earth and related environmental sciences, Listeria monocytogene, ENVIRONMENTAL MONITORING PROGRAMS, business.industry, Nutrition. Foods and food supply, Chemical technology, Food safety, food safety management systems, Smoked fish, Scientific Opinion, Risk factors, Food processing, Animal Science and Zoology, Parasitology, business, Food Science
Abstract

A multi‐country outbreak of Listeria monocytogenes ST6 linked to blanched frozen vegetables (bfV) took place in the EU (2015–2018). Evidence of food‐borne outbreaks shows that L. monocytogenes is the most relevant pathogen associated with bfV. The probability of illness per serving of uncooked bfV, for the elderly (65–74 years old) population, is up to 3,600 times greater than cooked bfV and very likely lower than any of the evaluated ready‐to‐eat food categories. The main factors affecting contamination and growth of L. monocytogenes in bfV during processing are the hygiene of the raw materials and process water; the hygienic conditions of the food processing environment (FPE); and the time/Temperature (t/T) combinations used for storage and processing (e.g. blanching, cooling). Relevant factors after processing are the intrinsic characteristics of the bfV, the t/T combinations used for thawing and storage and subsequent cooking conditions, unless eaten uncooked. Analysis of the possible control options suggests that application of a complete HACCP plan is either not possible or would not further enhance food safety. Instead, specific prerequisite programmes (PRP) and operational PRP activities should be applied such as cleaning and disinfection of the FPE, water control, t/T control and product information and consumer awareness. The occurrence of low levels of L. monocytogenes at the end of the production process (e.g. < 10 CFU/g) would be compatible with the limit of 100 CFU/g at the moment of consumption if any labelling recommendations are strictly followed (i.e. 24 h at 5°C). Under reasonably foreseeable conditions of use (i.e. 48 h at 12°C), L. monocytogenes levels need to be considerably lower (not detected in 25 g). Routine monitoring programmes for L. monocytogenes should be designed following a risk‐based approach and regularly revised based on trend analysis, being FPE monitoring a key activity in the frozen vegetable industry. info:eu-repo/semantics/publishedVersion

Published
2020
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50. Effect of different cleaning procedures on water use and bacterial levels in weaner pig pens

Author

Misra, Shilpi, van Middelaar, Corina E., Jordan, Kieran, Upton, John, Quinn, Amy J., de Boer, Imke J.M., O’Driscoll, Keelin, Misra, Shilpi, van Middelaar, Corina E., Jordan, Kieran, Upton, John, Quinn, Amy J., de Boer, Imke J.M., and O’Driscoll, Keelin

Abstract

Pork is one of the most globally eaten meats and the pig production chain contributes significantly to the water footprint of livestock production. However, very little knowledge is available about the on-farm factors that influence freshwater use in the pig production chain. An experiment was conducted to quantify the effect of three different washing treatments on freshwater use, bacterial levels [(total bacterial counts; TBC), Enterobacteriaceae and Staphylococcus] and cleaning time in washing of pens for weaning pigs. Three weaner rooms were selected with each room having 10 pens and a capacity to hold up to 14 pigs each. Pigs were weaned and kept in the pens for 7 weeks. Finally, the pens were cleaned before the next batch of pigs moved in. The washing treatments used were power washing and disinfection (WASH); presoaking followed by power washing and disinfection (SOAK), and presoaking followed by detergent, power washing and disinfection (SOAK + DETER). A water meter was used to collect water use data and swab samples were taken to determine the bacterial levels. The results showed that there was no overall effect of washing treatments on water use. However, there was an effect of treatment on the washing time (p<0.01) with SOAK and SOAK+DETER reducing the washing time per pen by 2.3 minutes (14%) and 4.2 minutes (27%) compared to WASH. Nonetheless, there was an effect of sampling time (before or after washing) (p<0.001) on the levels of TBC and Staphylococcus, but no effect was seen on Enterobacteriaceae levels. Thus, the washing treatments used in this study had no effect on the water use of the pork production chain. Although there was no difference in both water use and bacterial load, from a producer perspective, presoaking and detergent use can save time and labour costs, so this would be the preferred option.

Published
2020

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