Publications by authors named "M Mataragas"

Dairy products play a crucial role in human nutrition as they provide essential nutrients. However, the presence of diverse microorganisms in these products can pose challenges to food safety and quality. Here, we provide a comprehensive molecular characterization of a diverse collection of lactic acid bacteria (LAB) and staphylococci isolated from raw sheep's milk.

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Listeriosis is a serious infectious disease with one of the highest case fatality rates ( 20%) among the diseases manifested from bacterial foodborne pathogens in humans, while dairy products are often implicated as sources of human infection with . In this study, we characterized phenotypically and genetically by whole-genome sequencing (WGS) 54 strains isolated from Myzithra, a traditional Greek soft whey cheese (48 isolates), and swabs collected from surfaces of a cheese processing plant (six isolates) in the Epirus region of Greece. All but one strain of belonged to the polymerase chain reaction (PCR) serogroups IIa (16.

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Lactic acid bacteria (LAB) are valuable for the production of fermented dairy products. We investigated the functional traits of LAB isolated from artisanal cheeses and raw sheep milk, assessed their safety status, and explored the genetic processes underlying the fermentation of carbohydrates. had the largest and more functional genome compared to all other LAB, while most of its protein-encoding genes had unknown functions.

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The comparative genome analysis of six subsp. strains previously isolated from spontaneously fermented Greek wheat sourdoughs is presented. Genomic attributes related to food safety have been studied according to the European Food Safety Authority (EFSA) suggestions for the use of lactic acid bacteria (LAB) in the production of foods.

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Article Synopsis
  • The study investigated 189 LAB strains from sheep milk and specific cheeses to assess their suitability for dairy manufacturing, safety risks, and gastrointestinal survival.
  • Key findings showed that the fastest acidifying strains were DRD 2658 and DRD 2657, which lowered milk pH significantly within 6 hours, while weak caseinolytic activity was found across all species but no lipolytic or harmful activities were observed.
  • There was a notable variability in antibiotic resistance, with most strains showing resistance, and while none survived at pH 1, a significant percentage did survive at pH 2 and 3, indicating durability in acidic conditions but requiring further research for potential use as starter cultures.
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