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Survival of allochthonous bacteria in still mineral water bottled in polyvinyl chloride (PVC) and glass
Author(s) -
Moreira Leonilde,
Agostinho Paula,
Morals Paula Vasconcellos,
da Costa M. S.
Publication year - 1994
Publication title -
journal of applied bacteriology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.889
H-Index - 156
eISSN - 1365-2672
pISSN - 0021-8847
DOI - 10.1111/j.1365-2672.1994.tb03082.x
Subject(s) - bottled water , enterobacter cloacae , mineral water , tap water , microbiology and biotechnology , polyvinyl chloride , escherichia coli , pseudomonas aeruginosa , chemistry , food science , bacteria , klebsiella pneumoniae , biology , environmental science , environmental engineering , materials science , biochemistry , organic chemistry , metallurgy , gene , genetics
The mortality of Escherichia coli, Enterobacter cloacae, Klebsiella pneumoniae and Pseudomonas aeruginosa, based on the culturability of these bacteria, was assessed in non‐carbonated mineral water, bottled in polyvinyl chloride (PVC) containing the indigenous flora, sterile mineral water bottled in PVC, sterile mineral water in glass containers, and sterile tap water in glass containers. There was a general decrease in the culturability of these organisms in the four test waters, except that Ps. aeruginosa grew in sterile tap water. Escherichia coli and Kl. pneumoniae had the highest mortality rates under the conditions tested, while Ent. cloacae had a very low and constant mortality rate that would have resulted in the persistence of this organism in mineral water for a long period of time. After a sharp initial decrease in culturability, Ps. aeruginosa also had a very low mortality rate in mineral water bottled in PVC.