Publications by authors named "Peruzy M"

Background: Wild game meat has over the years gained popularity across the globe as it is considered a food source with high protein content, low fat content, and a balanced composition of fatty acids and minerals, which are requirements for a healthy diet. Despite this popularity, there is a concern over its safety as many species of wildlife are reservoirs of zoonotic diseases including those of bacterial origin, more so antibiotic-resistant bacteria.

Methods: This study aimed to describe the prevalence of antibiotic-resistant bacteria in mammalian wild game, following the Preferred Reporting Items for Systematic reviews and Meta-Analyses (PRISMA) guidelines.

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One commercial production run of Provolone del Monaco - a long-ripened pasta filata cheese - was followed up to the end of ripening for a total of 20 samples. 371 LAB isolates were subject to genetic characterization followed by 16S rRNA gene sequencing. The dominant species were Lacticaseibacillus casei/paracasei (19.

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, along with various other pathogenic bacteria, may show resistance against a broad spectrum of antibiotics. Evaluating the extent of resistance in harmful microorganisms like holds significant importance in crafting novel therapeutic strategies to mitigate or combat the rise of infections stemming from antibiotic-resistant bacteria. The present work aims to investigate the occurrence of antimicrobial resistance among strains in meat products (n = 173), seafood (n = 54), dairy products (n = 19), sauces (n = 2), confectionary products (n = 1), ready-to-eat rice dishes (n = 1), and food-processing environments (n = 19).

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  • - The study focuses on developing a faster detection method for seafood-related pathogens, specifically three bacteria types, using multiplex real-time PCR, which is quicker than traditional culture methods.
  • - Bivalve mollusks were tested by inoculating them with different concentrations of these bacteria, and the PCR method showed a high detection accuracy, matching results with the standard reference method.
  • - The new PCR technique proved reliable for two of the bacteria types, while results for the third were promising but needed more investigation; this method could enhance food safety monitoring in seafood.
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is one of the main zoonotic agents causing foodborne diseases in Europe. The main reservoirs of the infection are represented by domestic and wild animals, and the infection occurs by direct contact or following the consumption of contaminated food or water. The study aimed to evaluate the presence of spp.

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  • Companion animals like dogs and cats are playing a significant role in the spread of antimicrobial-resistant bacteria, prompting research on their antimicrobial drug prescribing practices in Campania, Italy from 2019 to 2020.
  • Out of 166,879 total prescriptions analyzed, 73.4% (129,116) were for antimicrobials, predominantly given to dogs (65%) and cats (31.4%).
  • The study found that a large percentage of systemic treatments included critically important antimicrobials for human medicine, with fluoroquinolones being the most commonly prescribed class, raising concerns about the overuse of broad-spectrum antibiotics.
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The epidemiology of Salmonella Infantis is complex in terms of its distribution and transmission. The continuous collection and analysis of updated data on the prevalence and antimicrobic resistance are essential. The present work aimed to investigate the antimicrobial resistance and the correlation among Infantis isolates from different sources through the multiple-locus variable-number of tandem repeat (VNTR) analysis (MLVA).

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Foodborne infections cause illness and death every year worldwide. The aim of this study was to describe trends in 2013-2019 in the occurrence of human cases of salmonellosis, campylobacteriosis, listeriosis, and hepatitis A in the Campania region. Human case data were provided by the National Surveillance System of disease and were grouped by year, province, age group, and sex.

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  • The study focuses on assessing the prevalence of foodborne illness agents, specifically a genus with two species and six subspecies, in food and animal carcasses in southern Italy from 2011 to 2021.
  • A total of 12,246 food samples and 982 animal carcass samples were analyzed, revealing an overall positive sample rate of 5.84%, with a notable increase in prevalence during the later years of the study period.
  • The most affected categories include "Meat and Meat Products," and the most frequently identified serovar was Infantis, indicating urgent need for improved control measures despite existing national and European strategies.
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"Grottone" is a pasta filata hard cheese produced in Campania region from cow's milk and characterized by holes formation due to CO development by Propionic Acid Bacteria. The contamination of raw milk with butyric acid-producing spore-forming clostridia represent a major concern for cheese producers since clostridia outgrowth may lead to the cheese late blowing defect during ripening. Detection of clostridial endospores in milk before processing and the use of antimicrobial compounds may represent an important control strategy.

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  • Campylobacteriosis is a public health issue mainly caused by Campylobacter jejuni and Campylobacter coli, but there is growing awareness of other species like Arcobacter; however, little is known about Arcobacter in wild boars.
  • A study examined fecal samples from 76 wild boars in Italy using various isolation techniques, finding that over half of the animals carried Campylobacter or Arcobacter, with Campylobacter lanienae being the most common.
  • Almost 40% of the boars had high levels of Campylobacter in their feces, raising concerns about potential meat contamination, especially since these animals were hunted for consumption.
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Wild boars can be infected with several foodborne pathogens which may be transmitted to humans through the consumption of their meat, but currently, data of their prevalence are still limited. The present study aimed to evaluate the presence of enteric pathogens in wild boar meat samples killed in the Campania region. Twentyeight wild boar meat samples were analyzed for the detection of spp, , spp.

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Yersiniosis - the 4th most commonly reported zoonosis in the European Union - is caused by the consumption of food contaminated with the bacterium Yersinia enterocolitica. The number of human cases and contaminated food samples is probably underestimated since conventional molecular methods currently proposed for Yersinia enterocolitica detection proved to have several limitations. Critical issues associated with the detection of Yersinia enterocolitica in meat and/or meat product has already been investigated, whereas data on the possible limits of the molecular methods for Yersinia enterocolitica detection in vegetables are still lacking.

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Water-bath stunning represents the most-applied stunning system in poultry slaughtering, but within the European Union, specific indications on electric parameters that should be used, such as voltage, are missing. The objective of this study was to evaluate the efficiency of two commercially available types of electrical equipment (A and B) on broilers with different live body weights and the influence of the tested parameters on meat quality. Experimental trials in a European Union-approved slaughterhouse were carried out using two different stunners.

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Wild animals are potential vectors of antibiotic-resistant bacteria in the environment. The present study aimed to investigate the occurrence of antimicrobial resistance among serovars isolated from wildlife and the environment in Italy. A total of 164 isolates were analyzed, and six different subspecies and 64 serovars were detected.

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is a spoilage bacterium and is recognized as an agent of food poisoning. Two food-borne illnesses are caused by : a diarrheal disease, associated with cytotoxin K, hemolysin BL, non-hemolytic enterotoxin and enterotoxin FM, and an emetic syndrome, associated with the cereulide toxin. Owing to the heat resistance of and its ability to grow in milk, this organism should be considered potentially hazardous in dairy products.

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Routine evaluation of the slaughter process is performed by the enumeration of the aerobic colony count, Enterobacteriaceae and Salmonella spp. on the carcass through destructive or non-destructive methods. With non-destructive methods, bacteria are counted from a minimum area of 100 cm in different sampling sites on the pork carcasses, and the results of these investigated areas are pooled to one value for the complete carcass evaluation (a total of 400 cm).

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Conventional methods for Yersinia enterocolitica detection in food samples are generally considered inadequate. Problems arise from the presence of the so-called "background flora", coupled to the low contamination level of the pathogen. Since, data on the microbial ecology occurring in competitive microflora are still lacking, MALDI TOF MS was used for strains 'identification after enrichment in PSB or ITC broths, and after plating on selective CIN medium at different incubation times.

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  • * The methods were tested on multiple bacterial strains and food samples, confirming that Real-Time PCR could specifically amplify the target bacteria, while ddPCR effectively quantified contamination levels down to 10 CFU/mL.
  • * Results showed that despite the effectiveness of these methods, the specific bacteria were not found in the 54 naturally contaminated food samples tested, indicating the novelty of these techniques for food safety monitoring.
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The continuous collection and analysis of updated data on the antimicrobic resistance among bacterial strains represent the essential core for the surveillance of this problem. The present work aimed to investigate the occurrence of antimicrobial resistance among serovars isolated in foods in 2015-2019. A total of 178 strains belonging to 39 serovars were tested against 10 antimicrobials.

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The aim of this study was to evaluate the effects of a long ageing period on the microbiological, rheological and physicalchemical characteristics of bovine beef. For the trial n. 3 Marchigiana bovine breed (live weight of 760 kg approximately), slaughtered at 34 months were chosen and the loin muscles were undergone to a prolonged ageing process.

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Wild boars (Sus scrofa) are the most widely distributed large mammals and recent increase in consumption of wild boar meat urges the need of microbiological quality criteria. The aim of the study was to characterize the initial bacterial contamination on freshly-killed wild boar meat using a culture-dependent approach with ISO-methods combined with matrix-assisted laser desorption/ionization time-of-flight mass spectrometry identification and 16S rRNA amplicon sequencing. Moreover, the presence of foodborne pathogens was examined using Real-Time-PCR and confirmed by classical isolation.

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  • Standard culture methods are still the main way to examine bacterial contamination in food, but culture-independent methods may be more reliable.
  • The study assessed the effects of different incubation temperatures on bacterial diversity in chicken carcasses and found no significant differences in bacterial levels.
  • Advanced techniques like 16S rRNA amplicon sequencing showed more bacterial diversity, highlighting the importance of DNA extraction methods and the presence of non-viable bacteria in results interpretation.
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  • The study analyzed 124 S. Typhimurium and 89 S. 1,4,[5],12:i:- isolates for antimicrobial susceptibility and genetic markers, using methods like Kirby-Bauer disk-diffusion and PCR assays.
  • It was found that S. Typhimurium exhibited more variability in resistance profiles and molecular types compared to S. 1,4,[5],12:i:-, and that strains from irrigation water were more susceptible to antibiotics.
  • Notably, none of the plasmid-borne virulence genes were detected in S. 1,4,[5],12:i:-, while 37.9% of S. Typhimurium strains carried these genes, highlighting significant genetic
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Routine evaluation of bacterial contamination in minced pork is still mainly performed by the enumeration of indicator bacteria, including total aerobic colony count and E. coli, using standardized isolation methods. However, the bacterial community structure as well as the effect of the storage time and temperature on the aerobic plate count are largely unknown for this matrix.

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