Temperature Stress Affects Survival and Antibiotic Susceptibility of Pathogenic and Indicator Bacteria in Drinking Water Dispensing System

Olusoji Olusegun Adebisi, Toyin Olayemi Agbabiaka, Tayo Modupe Kayode-Isola and Frank Olakunle Otuyelu

European Journal of Biology and Biotechnology, 2020, vol. 1, issue 3

Abstract: Point-of-use water treatment and dispensing systems are becoming common features in middle-to-upper class homes and public spaces. However, their effectiveness at providing potable water is yet to be substantiated. In this study, the effect of temperature stress (cold ≈ 10oC and hot ≈ 78oC) on survival of three pathogenic (Salmonella typhi, Shigella dysenteriae, Vibrio cholerae), a nuisance (Proteus vulgaris) and the indicator (Escherichia coli) bacteria was evaluated in water dispensers. Individual test organism was spiked into pre-sterilized distilled water in a 25-L dispenser bottle. The bottle was fitted and the machine set on to allow the organisms acclimatized for 30 mins before samples were collected. The holding temperatures apparently had an immediate significant inhibitory effect (p

Keywords: antibiotic susceptibility; indicator bacteria; temperature stress; water dispenser (search for similar items in EconPapers)
Date: 2020
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Persistent link: https://EconPapers.repec.org/RePEc:epw:ejbio0:v:1:y:2020:i:3:id:17038

DOI: 10.24018/ejbio.2020.1.3.38

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