A comparative study for quality of local and imported commercially available bottled water brands

Document Type : ORIGINAL RESEARCH ARTICLE

Authors

1 Department of Civil and Environmental Engineering, College of Engineering and Architecture, University of Nizwa, Nizwa, Oman

2 Department of Chemical and Petrochemical Engineering, College of Engineering and Architecture, University of Nizwa, Nizwa, Oman

Abstract
 In this study the quality of Omani and United Arab Emirates bottled water brands which are sold in Oman were assessed by comparing the chemical composition indicated on manufacturer’s label with local and international bottled water standards. Results indicated that all the bottled water brands are complying with local and international standards. According to piper diagram, the most dominant water type among Omani brands is mixed Ca2+-Mg2+-Cl- and among United Arab Emirate brands is calcium chloride. Hierarchical cluster analysis divided Omani and United Arab Emirate brands in to four groups based on similarity in chemical composition. Some of the Omani and United Arab Emirate brands have same chemical composition, but marketed under different names. Calcium concentration in Omani and United Arab Emirate brands is low compared to imported mineral water brands, and their contribution towards recommended dietary allowances of calcium for adults is only 3%. Both Omani and United Arab Emirate brands used in this study are meeting United States Food and Drug Administration’s very low sodium category requirements and are suitable for individuals on severely restricted sodium diet.

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Subjects
  • Receive Date 19 November 2018
  • Revise Date 17 January 2019
  • Accept Date 02 March 2019