MICROBIAL CONTAMINANTS IN BOTTLED WATER
Journal Title: Българско списание за обществено здраве (Bulgarian Journal of Public Health) - Year 2011, Vol 0, Issue 1
Abstract
Over the recent years, the consumption of bottled (mineral, spring, table) water has increased in Bulgaria. Quality of bottled water is regulated by both European and Bulgarian legislations. Regulations allow water treatment according to its category. Antimicrobial treatment is not allowed for mineral and spring waters as it is a protective mechanism for their authentic unique composition and microflora. It is important to preserve the natural purity of water during bottling process. Microbiological control aims at identifying microbiological content of bottled and stored water in order to guarantee safe consumption. The present literature review deals with microbial contaminants, being isolated from mineral spring water, with respect to its source and possible health risk. Some contaminants (Coliforms, E.coli, Enterococci and Staphylococci) get into water from the environment or as a result from staff’s poor hygiene, while others -Aeromonas spp. and Pseudomonas spp. colonize as a biofilm bottling lines, becoming a source of secondary contamination. Biological contaminants include also algae - diatoms, whose source is surface water entering the drilling installations, as well as green and blue-green algae coming from the soil. Inappropriate storage (for example, near a light source, at inappropriate temperature) and the presence of autochthanous and allochthanous algae compromise the quality of bottled water. Problems could be solved by good manufacturing practice, coherent disinfection system of equipment and continuous monitoring system.
Authors and Affiliations
Liliana Chipilska, Vesela Georgieva
Keywords
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