Publications by authors named "Rita Sanna"

This study aimed to evaluate the influence of dry and wet aging on microbial profile and physicochemical characteristics of bovine loins obtained from four animals of two different breeds, namely two Friesian cull cows and two Sardo-Bruna bovines. During dry and wet aging aerobic colony count, , mesophilic lactic acid bacteria, , molds and yeasts, , and , pH and water activity (a) were determined in meat samples collected from the internal part of the loins. Moreover, the microbial profile was determined with sponge samples taken from the surface of the meat cuts.

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Article Synopsis
  • The study investigated the presence of Yersinia enterocolitica in 309 environmental and food samples from two industrial cheese-making plants in Sardinia between 2018 and 2019, finding a detection rate of 7.4%.
  • The highest prevalence was found in non-food contact surfaces, particularly flooring (13.5%), suggesting these areas may contribute significantly to contamination risk.
  • The isolates showed various genetic characteristics, including resistance to certain antibiotics and potential pathogenicity, highlighting the need for improved hygiene practices in cheese production processes to safeguard human health.
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The main objective of this study was to innovate soft and semi-cooked sheep milk cheese production processes with the use of a commercial protective culture able to control growth. A freeze-dried commercial culture of was tested in DS cheese and PS cheese, two types of pasteurized sheep milk, raw-paste cheeses aged for no less than 20 and 30 days respectively. In the first step, tests were conducted to identify the most suitable matrix for the growth of in order to create a subculture that could be used at industrial cheese-making plants.

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Sardinian fermented sausage "Salsiccia Sarda" is a Mediterranean-style, semi-dry, fermented, RTE product, representing the main pork meat product in Sardinia (Italy). The high variability that characterizes the technological processes applied in different production plants results in sausages with different chemico-physical features sometimes permissive for the growth of . In order to guarantee the hygienic-sanitary quality of the final product and to innovate the manufacturing process, the main objective of this study was to evaluate the use of different commercial protective cultures to control growth in the Sardinian fermented sausage.

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The aim of this study was to evaluate prevalence and serotypes in four Sardinian pig slaughterhouses. Moreover, a population study was conducted with pulsed field gel electrophoresis (PFGE). The results were compared with previous investigations carried out during years 2008 and 2014.

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