MICROBIAL EXAMINATION OF BOTTLED WATER AVAILABLE IN LOCAL MARKET OF LAHORE
Microbiology Research Center, Lahore College for Women University, Lahore, Pakistan
Keywords: Bottled water, MPN method, Coliform
The present work describes the microbial examination of six samples of bottled water collected from Defence market of Lahore. Six samples (Wah, Classic, Nestle, Askari, Aqua Safe, and Sparkletts) were analyzed for total viable count and coliform count. The serial dilution such as 10-2 was prepared for the study of microbial load. The pour plate method was employed for the estimation of microorganisms. The total viable count ranged from 1.0 x 102 to 16.80 x 102 TVC/ml. The results reported are the average of three replicates. The MPN method was employed for the detection of coliform. The coliform bacteria were not detected in any of the bottled water sample. It was however; found that total viable count of all bottled water samples was much higher than the IBWA and PCRWR standards. The microbial quality of bottled water samples were not up to the mark because samples were showing higher bacterial count so it will effect on the health of the consumer.
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