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  1. Book: Special issue: Advancing beef safety through research and innovation: Prosafebeef

    Duffy, Geraldine

    (Meat science ; 97,3)

    2014  

    Title variant Advancing beef safety through research and innovation: Prosafebeef
    Author's details guest ed.: Geraldine Duffy
    Series title Meat science ; 97,3
    Collection
    Language English
    Size S. [287] - 394 : graph. Darst.
    Publisher Elsevier
    Publishing place Amsterdam u.a.
    Publishing country Netherlands
    Document type Book
    HBZ-ID HT018262529
    Database Catalogue ZB MED Nutrition, Environment, Agriculture

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    In stock of ZB MED Bonn / Germany

    Shelf markLoan statusLocation
    Z 4037 available for loan (reading room) Freihandmagazin (U1)

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  2. Article ; Online: Hybrid genome assemblies of four Shiga toxin-producing

    McCarthy, Siobhán C / Macori, Guerrino / Burgess, Catherine M / Duffy, Geraldine / Fanning, Séamus

    Microbiology resource announcements

    2023  Volume 12, Issue 11, Page(s) e0004623

    Abstract: This study describes the hybrid genome assemblies of four Shiga toxin- ... ...

    Abstract This study describes the hybrid genome assemblies of four Shiga toxin-producing
    Language English
    Publishing date 2023-10-31
    Publishing country United States
    Document type Journal Article
    ISSN 2576-098X
    ISSN (online) 2576-098X
    DOI 10.1128/MRA.00046-23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Electrochemical nucleic acid‐based sensors for detection of Escherichia coli and Shiga toxin‐producing E. coli—Review of the recent developments

    Wasiewska, Luiza A. / Juska, Vuslat B. / Seymour, Ian / Burgess, Catherine M. / Duffy, Geraldine / O'Riordan, Alan

    Comprehensive Reviews in Food Science and Food Safety. 2023 May, v. 22, no. 3 p.1839-1863

    2023  

    Abstract: Escherichia coli are a group of bacteria that are a natural part of the intestinal flora of warm‐blooded animals, including humans. Most E. coli are nonpathogenic and essential for the normal function of a healthy intestine. However, certain types, such ... ...

    Abstract Escherichia coli are a group of bacteria that are a natural part of the intestinal flora of warm‐blooded animals, including humans. Most E. coli are nonpathogenic and essential for the normal function of a healthy intestine. However, certain types, such as Shiga toxin‐producing E. coli (STEC), which is a foodborne pathogen, can cause a life‐threatening illness. The development of point‐of‐care devices for the rapid detection of E. coli is of significant interest with regard to ensuring food safety. The most suitable way to distinguish between generic E. coli and STEC is by using nucleic acid‐based detection, focusing on the virulence factors. Electrochemical sensors based on nucleic acid recognition have attracted much attention in recent years for use in pathogenic bacteria detection. This review has summarized nucleic acid‐based sensors for the detection of generic E. coli and STEC since 2015. First, the sequences of the genes used as recognition probes are discussed and compared to the most recent research regarding the specific detection of general E. coli and STEC. Subsequently, the collected literature regarding nucleic acid‐based sensors is described and discussed. The traditional sensors were divided into four categories such as gold, indium tin oxide, carbon‐based electrodes, and those using magnetic particles. Finally, we summarized the future trends in nucleic acid‐based sensor development for E. coli and STEC including some examples of fully integrated devices.
    Keywords Shiga toxin-producing Escherichia coli ; electrochemistry ; food pathogens ; food safety ; gold ; indium tin oxide ; intestinal microorganisms ; intestines ; magnetism ; nucleic acids ; point-of-care systems ; rapid methods ; virulence
    Language English
    Dates of publication 2023-05
    Size p. 1839-1863.
    Publishing place John Wiley & Sons, Ltd
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ZDB-ID 2185829-9
    ISSN 1541-4337
    ISSN 1541-4337
    DOI 10.1111/1541-4337.13132
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Emerging Technologies for Aerial Decontamination of Food Storage Environments to Eliminate Microbial Cross-Contamination.

    Oliveira, Márcia / Tiwari, Brijesh K / Duffy, Geraldine

    Foods (Basel, Switzerland)

    2020  Volume 9, Issue 12

    Abstract: Air is recognized as an important source of microbial contamination in food production facilities and has the potential to contaminate the food product causing food safety and spoilage issues for the food industry. Potential for aerial microbial ... ...

    Abstract Air is recognized as an important source of microbial contamination in food production facilities and has the potential to contaminate the food product causing food safety and spoilage issues for the food industry. Potential for aerial microbial contamination of food can be a particular issue during storage in cold rooms when the food is not packaged and is exposed to contaminated air over a prolonged period. Thus, there are potential benefits for the food industry for an aerial decontamination in cold storage facilities. In this paper, aerial decontamination approaches are reviewed and challenges encountered for their applications are discussed. It is considered that current systems may not be completely effective and environmentally friendly, therefore, it is of great significance to consider the development of nonresidual and verified decontamination technologies for the food industry and, in particular, for the cold storage rooms.
    Language English
    Publishing date 2020-11-30
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2704223-6
    ISSN 2304-8158
    ISSN 2304-8158
    DOI 10.3390/foods9121779
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: An Overview of Shiga-Toxin Producing

    McCarthy, Siobhán C / Burgess, Catherine M / Fanning, Séamus / Duffy, Geraldine

    Foodborne pathogens and disease

    2021  Volume 18, Issue 3, Page(s) 147–168

    Abstract: Shiga-toxin ... ...

    Abstract Shiga-toxin producing
    MeSH term(s) Abattoirs ; Animals ; Escherichia coli Infections/veterinary ; Feces/microbiology ; Food Microbiology ; Meat/microbiology ; Prevalence ; Serogroup ; Sheep ; Sheep Diseases/epidemiology ; Sheep Diseases/microbiology ; Shiga-Toxigenic Escherichia coli
    Language English
    Publishing date 2021-01-04
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2148479-X
    ISSN 1556-7125 ; 1535-3141
    ISSN (online) 1556-7125
    ISSN 1535-3141
    DOI 10.1089/fpd.2020.2861
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

    Z 7517: Show issues

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  6. Article: Emerging Technologies for Aerial Decontamination of Food Storage Environments to Eliminate Microbial Cross-Contamination

    Oliveira, Márcia / Tiwari, Brijesh K / Duffy, Geraldine

    Foods. 2020 Nov. 30, v. 9, no. 12

    2020  

    Abstract: Air is recognized as an important source of microbial contamination in food production facilities and has the potential to contaminate the food product causing food safety and spoilage issues for the food industry. Potential for aerial microbial ... ...

    Abstract Air is recognized as an important source of microbial contamination in food production facilities and has the potential to contaminate the food product causing food safety and spoilage issues for the food industry. Potential for aerial microbial contamination of food can be a particular issue during storage in cold rooms when the food is not packaged and is exposed to contaminated air over a prolonged period. Thus, there are potential benefits for the food industry for an aerial decontamination in cold storage facilities. In this paper, aerial decontamination approaches are reviewed and challenges encountered for their applications are discussed. It is considered that current systems may not be completely effective and environmentally friendly, therefore, it is of great significance to consider the development of nonresidual and verified decontamination technologies for the food industry and, in particular, for the cold storage rooms.
    Keywords air ; air pollution ; cold storage ; cross contamination ; decontamination ; food contamination ; food industry ; food production ; foods ; microbial contamination ; paper ; spoilage
    Language English
    Dates of publication 2020-1130
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    Note NAL-light
    ZDB-ID 2704223-6
    ISSN 2304-8158
    ISSN 2304-8158
    DOI 10.3390/foods9121779
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Draft Genome Sequences of Bacillus licheniformis and Bacillus paralicheniformis Strains Isolated from Irish Skim Milk Powder.

    Lourenco, Antonio / Li, Fang / Quijada, Narciso M / Duffy, Geraldine / Tobin, John T / Butler, Francis / Jordan, Kieran / O'Brien, Triona

    Microbiology resource announcements

    2023  Volume 12, Issue 7, Page(s) e0013723

    Abstract: Nineteen Bacillus licheniformis strains and four strains of the closely related species Bacillus paralicheniformis were isolated from a variety of Irish medium-heat skim milk powders. The draft genome sequences of these 23 isolates provide valuable ... ...

    Abstract Nineteen Bacillus licheniformis strains and four strains of the closely related species Bacillus paralicheniformis were isolated from a variety of Irish medium-heat skim milk powders. The draft genome sequences of these 23 isolates provide valuable genetic data for research work relevant to dairy products and process development. The isolates are available at Teagasc.
    Language English
    Publishing date 2023-06-06
    Publishing country United States
    Document type Journal Article
    ISSN 2576-098X
    ISSN (online) 2576-098X
    DOI 10.1128/mra.00137-23
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    Order via subito

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  8. Article ; Online: Electrochemical nucleic acid-based sensors for detection of Escherichia coli and Shiga toxin-producing E. coli-Review of the recent developments.

    Wasiewska, Luiza A / Juska, Vuslat B / Seymour, Ian / Burgess, Catherine M / Duffy, Geraldine / O'Riordan, Alan

    Comprehensive reviews in food science and food safety

    2023  Volume 22, Issue 3, Page(s) 1839–1863

    Abstract: Escherichia coli are a group of bacteria that are a natural part of the intestinal flora of warm-blooded animals, including humans. Most E. coli are nonpathogenic and essential for the normal function of a healthy intestine. However, certain types, such ... ...

    Abstract Escherichia coli are a group of bacteria that are a natural part of the intestinal flora of warm-blooded animals, including humans. Most E. coli are nonpathogenic and essential for the normal function of a healthy intestine. However, certain types, such as Shiga toxin-producing E. coli (STEC), which is a foodborne pathogen, can cause a life-threatening illness. The development of point-of-care devices for the rapid detection of E. coli is of significant interest with regard to ensuring food safety. The most suitable way to distinguish between generic E. coli and STEC is by using nucleic acid-based detection, focusing on the virulence factors. Electrochemical sensors based on nucleic acid recognition have attracted much attention in recent years for use in pathogenic bacteria detection. This review has summarized nucleic acid-based sensors for the detection of generic E. coli and STEC since 2015. First, the sequences of the genes used as recognition probes are discussed and compared to the most recent research regarding the specific detection of general E. coli and STEC. Subsequently, the collected literature regarding nucleic acid-based sensors is described and discussed. The traditional sensors were divided into four categories such as gold, indium tin oxide, carbon-based electrodes, and those using magnetic particles. Finally, we summarized the future trends in nucleic acid-based sensor development for E. coli and STEC including some examples of fully integrated devices.
    MeSH term(s) Animals ; Humans ; Escherichia coli ; Shiga Toxin/genetics ; Food Safety ; Food Microbiology
    Chemical Substances Shiga Toxin (75757-64-1)
    Language English
    Publishing date 2023-03-04
    Publishing country United States
    Document type Review ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2185829-9
    ISSN 1541-4337 ; 1541-4337
    ISSN (online) 1541-4337
    ISSN 1541-4337
    DOI 10.1111/1541-4337.13132
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article: A sensor‐based system for rapid on‐site testing of microbial contamination in meat samples and carcasses

    Santovito, Elisa / Elisseeva, Sophia / Smyth, Conor / Cruz‐Romero, Malco / Kerry, Joseph P. / Duffy, Geraldine / Papkovsky, Dmitri B.

    Journal of applied microbiology. 2022 Feb., v. 132, no. 2

    2022  

    Abstract: AIMS: To develop an oxygen sensor‐based method for testing total aerobic viable counts (TVC) in raw meat samples and cattle carcass swabs, which is rapid, simple, affordable, provides good sensitivity and analytical performance and allows on‐site use. ... ...

    Abstract AIMS: To develop an oxygen sensor‐based method for testing total aerobic viable counts (TVC) in raw meat samples and cattle carcass swabs, which is rapid, simple, affordable, provides good sensitivity and analytical performance and allows on‐site use. METHODS AND RESULTS: The test uses the same sample preparation procedure as the established plate counting TVC method for meat samples and carcasses, ISO4833‐1:2013. After this liquid samples are transferred into standard 25‐ml vials with built‐in phosphorescent O₂ sensors and incubated on a block heater with hourly readings of sensor signals with a handheld reader, to determine signal threshold time (TT, hours) for each sample. The method is demonstrated with the quantification of TVC in industrial cuts of raw beef meat (CFU per g) and carcass swabs (CFU per cm²). Calibration curves were generated, which give the following analytical equations for calculating the TVC load in unknown samples from measured TT values: TVC [Log(CFU per cm²)] = 7.83–0.73*TT(h) and TVC [Log(CFU per g)] = 8.74–0.70*TT(h) for the carcass swabs and meat samples respectively. The new tests show good correlation with the ISO methods, with correlation coefficients 0.85 and 0.83 respectively. The testing requires no dilutions, covers the ranges 2–7 Log(CFU per g) for the meat samples and 1–7 Log(CFU per cm²) for carcass swabs, and has time to result 1–10 h with faster detection of more contaminated samples. CONCLUSIONS: The sensor‐based testing demonstrates simplicity, high speed, sample throughput and automation. It can provide a straightforward replacement for the conventional TVC tests, which are time consuming, laborious and have time to result of 48–72 h. SIGNIFICANCE AND IMPACT OF THE STUDY: The method(s) can be adopted by the meat industry and research labs, and used to improve microbial quality and safety of meat products and processes.
    Keywords automation ; beef ; beef carcasses ; food safety ; liquids ; livestock and meat industry ; microbial contamination ; microbiological quality ; oxygen ; phosphorescence ; raw meat
    Language English
    Dates of publication 2022-02
    Size p. 1210-1220.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ZDB-ID 1358023-1
    ISSN 1365-2672 ; 1364-5072
    ISSN (online) 1365-2672
    ISSN 1364-5072
    DOI 10.1111/jam.15274
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 259: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  10. Article: Natural Anti-Microbials for Enhanced Microbial Safety and Shelf-Life of Processed Packaged Meat

    Papadochristopoulos, Angelos / Kerry, Joseph P. / Fegan, Narelle / Burgess, Catherine M. / Duffy, Geraldine

    Foods. 2021 July 09, v. 10, no. 7

    2021  

    Abstract: Microbial food contamination is a major concern for consumers and food industries. Consumers desire nutritious, safe and “clean label” products, free of synthetic preservatives and food industries and food scientists try to meet their demands by finding ... ...

    Abstract Microbial food contamination is a major concern for consumers and food industries. Consumers desire nutritious, safe and “clean label” products, free of synthetic preservatives and food industries and food scientists try to meet their demands by finding natural effective alternatives for food preservation. One of the alternatives to synthetic preservatives is the use of natural anti-microbial agents in the food products and/or in the packaging materials. Meat and processed meat products are characteristic examples of products that are highly perishable; hence natural anti-microbials can be used for extending their shelf-life and enhancing their safety. Despite several examples of the successful application of natural anti-microbial agents in meat products reported in research studies, their commercial use remains limited. This review objective is to present an extensive overview of recent research in the field of natural anti-microbials, covering essential oils, plant extracts, flavonoids, animal-derived compounds, organic acids, bacteriocins and nanoparticles. The anti-microbial mode of action of the agents, in situ studies involving meat products, regulations and, limitations for usage and future perspectives are described. The review concludes that naturally derived anti-microbials can potentially support the meat industry to provide “clean label”, nutritious and safe meat products for consumers.
    Keywords bacteriocins ; flavonoids ; food contamination ; food preservation ; livestock and meat industry ; mechanism of action ; processed meat ; shelf life
    Language English
    Dates of publication 2021-0709
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2704223-6
    ISSN 2304-8158
    ISSN 2304-8158
    DOI 10.3390/foods10071598
    Database NAL-Catalogue (AGRICOLA)

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