Impact of bottled water storage duration and location on bacteriological quality

    Authors

    S. J. Duranceau; H. P. Emerson;R. J. Wilder

    Comments

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    Abbreviated Journal Title

    Int. J. Environ. Health Res.

    Keywords

    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

    Abstract

    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.

    Journal Title

    International Journal of Environmental Health Research

    Volume

    22

    Issue/Number

    6

    Publication Date

    1-1-2012

    Document Type

    Article

    Language

    English

    First Page

    543

    Last Page

    559

    WOS Identifier

    WOS:000310590100005

    ISSN

    0960-3123

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