Impact of bottled water storage duration and location on bacteriological quality
Abbreviated Journal Title
Int. J. Environ. Health Res.
bottled water; heterotrophic plate count; microbiological growth; water; storage; NATURAL MINERAL-WATER; MICROBIOLOGICAL QUALITY; DRINKING-WATER; PSEUDOMONAS-AERUGINOSA; TUMOR-GROWTH; BACTERIA; CANADA; SOLD; SALMONELLAE; TEMPERATURE; Environmental Sciences; Public, Environmental & Occupational Health
An investigation studying the effects of storage duration and location on the persistence of heterotrophic microorganisms in oligotrophic bottled water environments has been completed. One-gallon high-density polyethylene water containers stored for up to 16 weeks at temperatures ranging from 2 degrees C to >49 degrees C in a refrigerator, indoor cabinet, covered porch, and car trunk were evaluated for microbiological quality. Heterotrophic plate counts (HPCs) of up to 4 x 10(3) cfu/mL were detected in containers stored on a porch and car trunk; whereas, HPCs were found not to exceed 400 cfu/mL and 100 cfu/mL for bottles stored in indoor cabinets and refrigerators, respectively. Containers stored on an enclosed porch for up to seven years contained HPC of up to 4 x 10(4) cfu/mL. Logistic and Gompertz growth models predicted microbial growth rates for bottled water stored on a protected porch environment for long (R-2 0.99) and short-term (R-2 0.86) durations.
International Journal of Environmental Health Research
"Impact of bottled water storage duration and location on bacteriological quality" (2012). Faculty Bibliography 2010s. 2507.