MICROBIOLOGICAL INVESTIGATION OF BOTTLED MINERAL AND DRINKING WATERS SOLD IN ESKİŞEHİR (TURKEY) MARKETS

Abstract

The microbiological quality of bottled natural spring and mineral water, purchased at different markets in Eskisehir (Turkey) markets, was investigated. Applying the membrane filtration method, the aliquots of water samples were analyzed for the presence and enumeration of total coliforms, Escherichia coli, Enterococcus spp., Aeromonas hydrophila . Aerobic bacteria were counted as Heterotrophic Bacteria Count (HPC) ml-1 by incubation at 22 and 37 oC. While Bacillus species in bottled mineral water samples have also been determined, any bacteria or contamination in bottled drinking water samples have not found.