title: Drug resistant bacteria in non carbonated mineral waters.
abstract: The presence of antibiotic resistant bacteria was revealed among bacteria isolated from non carbonated mineral waters bottled in plastic (PVC) and in glass containers. Heterotrophic plate count values ranged between < 10 and 4.3 x 10(3) and between < 10 and 1.2 x 10(4) colony forming units/ml for the waters bottled in PVC and glass, respectively. The greatest resistance to a single antibiotic, 39.1% of 320 isolates from mineral waters, was found for nalidixic acid. Resistance to the other antibiotics was as follows: ampicillin (26.2%), bacitracin (19.7%), cotrimoxazole (18.7%), streptomycin (15.0%), tetracycline (14.4%), gentamycin (11.6%), chloramphenicol and rifampin (9.7%). The strains resistant to two or more antibiotics (multiple antibiotic resistant, MAR) provided 51% of the total isolates. Identification of 127 MAR strains showed that in the mineral waters gram-positive cocci dominated. The second, third and fourth group of identified MAR phenotypes were, in order to importance, gram-negative non-fermentative rods, gram-positive rods and gram-negative fermentative rods. The importance of the antibiotic resistant bacteria in mineral water is discussed.
authors.affiliation: Istituto di Protezione e Preparazione Alimentare, University of Foggia, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Massa
authors.forename: M
authors.initials: M
authors.lastname: Petruccioli
authors.forename: M
authors.initials: M
authors.lastname: Fanelli
authors.forename: L
authors.initials: L
authors.lastname: Gori
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology; D001419:Bacteria / Q000187:drug effects* / Q000254:growth & development / Q000302:isolation & purification; D015169:Colony Count, Microbial; D004352:Drug Resistance, Microbial; D018432:Drug Resistance, Multiple; D018857:Food Packaging; D005898:Glass; D008826:Microbial Sensitivity Tests; D008900:Mineral Waters / Q000382:microbiology*; D011143:Polyvinyl Chloride; D014871:Water Microbiology
chemical_list: D000900:Anti-Bacterial Agents; D008900:Mineral Waters; D011143:Polyvinyl Chloride