Evaluation of the presence of coliform in bottled drinking water, released in Sari in 2016

Background: Today, bottled water is used in many countries of the world due to its relatively low cost,better taste, ease of access and low levels of impurities. In unfavorable conditions, the maintenance ofmicroorganisms due to hydrophobicity and adherence to bottles and as a result of increased lipolyticactivity can lead to undesirable changes in color, taste and odor, and in cases of more severe load,microbial contamination may cause unhealthy water and flooding. In this study, the presence or absenceof coliform in a number of bottled water brands was examined.Methods: The microbial quality of 10 markers of bottled water present in the market of Sari that wasrandomly selected from each mark and three samples was examined. The samples were analyzed usingthe coliform - presence/absence (P-A) test. The results were compared with national standards and theWorld Health Organization (WHO) guidelines. Data were analyzed using SPSS version 24 and EXCEL.Results: Samples showed no microbial contamination Also, coliform and fecal coliforms were notobserved in any of the samples. Finally, it was revealed that all cases were in accordance with nationalstandards and WHO guidelines.Conclusion: Increasing the health indexes of places, food supply and distribution centers, andmaintaining health conditions and measures that have been considered especially in the recent years onthe health of bottled water, have greatly reduced the problems.

Keywords:

Taste , Drinking water , Bacteria , World Health Organization , Bottled water