Antibiotic resistance of coagulase-negative staphylococci isolated from artisanal Naples-type salami

In the present paper 42 isolates from Italian salami were specified as Staphylococcus xylosus (30), Staph. capitis (1), Staph. saprophyticus (1), Staph. hominis (1), Staph. simulans (1), Staph. cohnii (1) and as Staph. spp. (7). These strains were coagula-senegative and were examined for resistance/sensitivity against 25 antibiotics including [Beta]-lactams (7), macrolides (3), amynoglicosides (5), glycopeptides, lincosamides (4) and novobiocin, fusidic acid, chloramphenicol, rifampicin, tetracycline, minocycline. More than 64% of the strains were resistant to lincomycin, penicillin G, amoxicillin, fusidic acid and novobiocin. All the strains were multiresistant and displayed at least three resistances. Over 75% had a multiple antibiotic resistance (MAR) index between 0.2 and 0.5.
Introduction It is now generally recognized that some species of coagulase-negative staphylococci (CNS) are involved in the fermentation of some types of fermented sausages, contributing to flavour and/ or aroma [...]