Foodborne Bacterial Pathogens in the Context of Climate Changes—New Approaches in Detection, Control, and Safety Assessment

A special issue of Foods (ISSN 2304-8158). This special issue belongs to the section "Food Microbiology".

Deadline for manuscript submissions: closed (15 January 2024) | Viewed by 1114

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Departamento de Ciências Biológicas e Bioengenharia, Centro de Investigação em Biomedicina (ABC-RI), Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal
Interests: bacterial pathogens; host-pathogen interactions; antimicrobial; food safety
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Special Issue Information

Dear Colleagues,

Food producers are currently facing an enormous challenge in responding to the need to provide food, in terms of both quantity (to satisfy billions of people) and assuring the acceptable quality in the absence (or controlled presence) of foodborne pathogens (bacteria, fungi, protozoa, and virus). This challenge is even greater in the context of climate changes, the development of antibiotic resistance, and an increasing elderly and immunocompromised population. The burden of foodborne diseases each year, as estimated by the World Health Organization (https://www.who.int/activities/estimating-the-burden-of-foodborne-diseases), reaches 600 million cases of foodborne diseases and 420 000 deaths, of which 30% comprises children under 5 years old. We can anticipate a significant impact of climate changes on environmental factors that govern microbial growth, survival, and virulence, creating a risk to food safety. For instance, higher temperature and an increase in precipitation encourage the establishment of enteric pathogens, especially those whose method of transmission is the faecal-oral route, contributing to an increase in gastrointestinal diseases. On the other hand, a decrease in precipitation may facilitate the contamination of food by mycotoxins. Moreover, the ability of foodborne pathogens to adapt to harsh conditions and mount stress responses is currently recognized.

This Special Issue focus on new, innovative approaches in detection, control, and safety assessment, taking into account the context of climate changes.

Original research manuscripts, methods, reviews, mini reviews, and opinions are welcome.

Dr. Maria Leonor Faleiro
Guest Editor

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Keywords

  • climate
  • food safety
  • food contamination risks
  • foodborne illness
  • mitigation measures
  • prevention
  • resistance and tolerance of foodborne pathogens
  • surveillance methods

Published Papers (1 paper)

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Research

17 pages, 2251 KiB  
Article
Investigation of the Suitability of a Combination of Ethyl-Να-dodecanyl-L-arginat_HCl (LAE) and Starter Culture Bacteria for the Reduction of Bacteria from Fresh Meat of Different Animal Species
by Maike Drevin, Madeleine Plötz and Carsten Krischek
Foods 2023, 12(22), 4138; https://doi.org/10.3390/foods12224138 - 15 Nov 2023
Viewed by 760
Abstract
Meat can be contaminated with (pathogenic) microorganisms during slaughter, dissection and packaging. Therefore, preservation technologies are frequently used to reduce the risk of (fatal) human infections due to the consumption of meat. In this study, we first investigated, if the application of ethyl-Nα-dodecanyl-L-arginate [...] Read more.
Meat can be contaminated with (pathogenic) microorganisms during slaughter, dissection and packaging. Therefore, preservation technologies are frequently used to reduce the risk of (fatal) human infections due to the consumption of meat. In this study, we first investigated, if the application of ethyl-Nα-dodecanyl-L-arginate hydrochloride (LAE) and the starter culture bacteria Staphylococcus carnosus and Lactobacillus sakei, either single or in combination, influences the bacteria number on pork, chicken meat and beef, inoculated with Brochothrix (Br.) thermosphacta (all meat species) or Salmonella (S.) Typhimurium (pork), Campylobacter (C.) jejuni (chicken) and Listeria (L.) monocytogenes (beef), before packaging under modified atmosphere and on days 7 and 14 of storage. To evaluate effects of the treatment on the appearance during storage, additionally, the physicochemical parameters color and myoglobin redox form percentages were analyzed. LAE regularly resulted in a significant reduction of the number of all bacteria species on day 1 of storage, whereas up to day 14 of storage, the preservation effect did not persist in nearly all samples, except in the beef with Br. thermosphacta. However, with the starter culture bacteria on day 1, only L. monocytogenes on beef was significantly reduced. Interestingly, on day 7 of storage, this reducing effect was also found with S. Typhimurium on pork. Br. thermosphacta, which was principally not influenced by the starter culture bacteria. The combinatory treatment mainly resulted in no additional effects, except for the S. Typhimurium and Br. thermosphacta results on pork on day 7 and the Br. thermosphacta results on beef on day 14. The physicochemical parameters were not influenced by the single and combinatory treatment. The results indicate that LAE was mainly responsible for the antimicrobial effects and that a combination with starter culture bacteria should be individually evaluated for the meat species. Full article
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