Fate of selected pathogens in spiked «SALAME NOSTRANO» produced without added nitrates following the application of NONIT™ technology
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Date
Authors
Cenci-Goga, Beniamino T.
Karama, Musafiri
Sechi, Paola
Iulietto, Maria Francesca
Grispoldi, Luca
Selvaggini, Roberto
Ceccarelli, Margherita
Barbera, Salvatore
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Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
This study evaluated the effect of a novel formulation for starter culture associated with specific ripening conditions (NoNit™ technology) vs. a commercial» starter on the fate of selected pathogens and hygiene indicators during the fermentation and ripening of experimentally spiked salame nostrano (Italian dry sausage). Selected strains of Staphylococcus aureus 27R, Escherichia coli CSH26 K 12, Listeria innocua ATCC 33090 and Salmonella Derby 27 were inoculated into salami batter and challenged with two formulations of starter cultures (a commercial formulation and the NoNit™ formulation, consisting of Lactococcus lactis ssp. lactis, strain 340; L. lactis ssp. lactis, strain 16; Lactobacillus casei ssp. casei, strain 208 and Enterococcus faecium strain 614) with ripening at a low temperature.
The proposed technology (NoNit™) performed better than the commercial formulation and limited the growth of spiked Escherichia coli, Staphylococcus aureus (including the production of enterotoxin), Salmonella Derby and Listeria innocua, yet maintained the basic product appearance and texture.
Description
Supplementary Data 1 : Reduction of selected microorganisms challenged vs. NoNitTM in milk.
Supplementary Data 2 : Reduction of selected microorganisms challenged vs. NoNitTM in salami.
Supplementary Data 3 : Curve for acidification kinetic for NoNitTM alone and in associations with selected pathogens.
Supplementary Data 2 : Reduction of selected microorganisms challenged vs. NoNitTM in salami.
Supplementary Data 3 : Curve for acidification kinetic for NoNitTM alone and in associations with selected pathogens.
Keywords
Strain, Enterococcus faecium, Dry salami, Temperature, Salmonella, Listeria, Food processing, Escherichia coli, Diseases, Bacteria, Bacilli, Starter culture, Lactobacillus casei ssp. casei, Lactococcus lactis ssp. lactis
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Citation
Cenci-Goga, B.T., Karama, M., Sechi, P. et al. 2018, 'Fate of selected pathogens in spiked «SALAME NOSTRANO» produced without added nitrates following the application of NONIT™ technology', Meat Science, vol. 139, pp. 247-254.