Storing Drinking-water in Copper pots Kills Contaminating Diarrhoeagenic Bacteria.

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dc.contributor.authorSudha, V B Preethi
dc.contributor.authorGanesan, Sheeba
dc.contributor.authorPazhani, G P
dc.contributor.authorRamamurthy, T
dc.contributor.authorNair, G B
dc.contributor.authorVenkatasubramanian, Padma
dc.date.accessioned2016-02-22T03:49:31Z
dc.date.available2016-02-22T03:49:31Z
dc.date.issued2012-03
dc.description.abstractMicrobially-unsafe water is still a major concern in most developing countries. Although many water-purification methods exist, these are expensive and beyond the reach of many people, especially in rural areas. Ayurveda recommends the use of copper for storing drinking-water. Therefore, the objective of this study was to evaluate the effect of copper pot on microbially-contaminated drinking-water. The antibacterial effect of copper pot against important diarrhoeagenic bacteria, including Vibrio cholerae O1, Shigella flexneri 2a, enterotoxigenic Escherichia coli, enteropathogenic E. coli, Salmonella enterica Typhi, and Salmonella Paratyphi is reported. When drinking-water (pH 7.83±0.4; source: ground) was contaminated with 500 CFU/mL of the above bacteria and stored in copper pots for 16 hours at room temperature, no bacteria could be recovered on the culture medium. Recovery failed even after resuscitation in enrichment broth, followed by plating on selective media, indicating loss of culturability. This is the first report on the effect of copper on S. flexneri 2a, enteropathogenic E. coli, and Salmonella Paratyphi. After 16 hours, there was a slight increase in the pH of water from 7.83 to 7.93 in the copper pots while the other physicochemical parameters remained unchanged. Copper content (177±16 ppb) in water stored in copper pots was well within the permissible limits of the World Health Organization. Copper holds promise as a point-of-use solution for microbial purification of drinking-water, especially in developing countries.en_US
dc.identifier.citationSudha V.B. Preethi, Ganesan Sheeba, Pazhani G.P, Ramamurthy T, Nair G.B, Venkatasubramanian Padma. Storing Drinking-water in Copper pots Kills Contaminating Diarrhoeagenic Bacteria. Journal of Health, Population and Nutrition. 2012 Mar; 30(1): 17-21.en_US
dc.identifier.issn1606-0997
dc.identifier.urihttps://imsear.searo.who.int/handle/123456789/173713
dc.language.isoenen_US
dc.source.urihttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC3312355/?report=classicen_US
dc.subjectBacteriaen_US
dc.subjectCopperen_US
dc.subjectDiarrhoeaen_US
dc.subjectDrinking-wateren_US
dc.subjectVibrio choleraeen_US
dc.subjectIndiaen_US
dc.titleStoring Drinking-water in Copper pots Kills Contaminating Diarrhoeagenic Bacteria.en_US
dc.typeArticleen_US
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