Publications by authors named "Michela Ibba"

cheese is the product of Sardinian dairy industry most exposed to microbial post-process contamination. Due to its technological characteristics, intrinsic parameters, pH (6.10-6.

View Article and Find Full Text PDF

cheese is a salted variety of traditionally made in Sardinia (Italy) from the whey remaining after the production of protected designation of origin or other sheep milk cheeses. cheese is very critical for the possible growth of pathogenic and spoilage microorganisms. Sporadic cases of listeriosis associated with cheese have been reported over recent years.

View Article and Find Full Text PDF

Ready-to-eat (RTE) food is characterised by a long shelf-life at refrigerated temperature and can be consumed as such, without any treatment. The aim of the work was to evaluate the presence of spp. and in RTEs collected from refrigerated vending machines placed in hospital environment and accessible to the hospitalised patients.

View Article and Find Full Text PDF

The present study shows the fate of Bacillus cereus in refrigerated ricotta salata cheese during shelf-life. 144 ricotta salata cheese belonging to nine naturally contaminated batches were stored refrigerated and analyzed at 24 h, 30, 60 and 90 days of storage. Total bacterial count, B.

View Article and Find Full Text PDF

Unlabelled: Ricotta salata cheese is frequently contaminated on the surface with Listeria monocytogenes. Water bath heat treatment in vacuum packed whole ricotta salata cheese wheels demonstrated to be effective in inactivating L. monocytogenes.

View Article and Find Full Text PDF

Food business operators (FBOs) are the primary responsible for the safety of food they place on the market. The definition and validation of the product's shelf-life is an essential part for ensuring microbiological safety of food and health of consumers. In the frame of the Regulation (EC) No 2073/2005 on microbiological criteria for foodstuffs, FBOs shall conduct shelf-life studies in order to assure that their food does not exceed the food safety criteria throughout the defined shelf-life.

View Article and Find Full Text PDF