An investigation on the quality of commercial packaged drinking water available in Punjab in terms of bacterial existence

Abstract

Bacterial assessment of five brands of packaged drinking water samples procured from different locations of Punjab, were investigated to evaluate their human consumption quality. The packaged drinking water bottles were bought from diverse locations. The samples were used for the bacterial isolation by serial dilution methods and the microscopic; biochemical characteristic features of the bacterial isolates including bacterial fermentation reactions of sugar of the collected bacterial isolates were investigated. Results of these investigations demonstrated various extents of bacterial load. The contamination of this packaged drinking water may causes numerous enteric infections in the consumers and strict recommendations were emphasized for improving their quality with least tolerable bacterial load.