Classification of Various Bottled Mineral Waters Marketed in Djibouti  

作　　者：Elmi Idil Mouhoumed Mohamed Mohamed-Awal Abdillahi Yacin Mouhoumed Elmi Choukri Osman Doubad Egueh Abdoulnasser Dirieh Elmi Idil Mouhoumed;Mohamed Mohamed-Awal Abdillahi;Yacin Mouhoumed Elmi;Choukri Osman Doubad;Egueh Abdoulnasser Dirieh(Faculty of Science, University of Djibouti, Djibouti, Republic of Djibouti;European Union Cell, External Financing Department, Djibouti, Republic of Djibouti;Ministry of National Education and Vocational Training, Djibouti, Republic of Djibouti)

机构地区：[1]Faculty of Science, University of Djibouti, Djibouti, Republic of Djibouti [2]European Union Cell, External Financing Department, Djibouti, Republic of Djibouti [3]Ministry of National Education and Vocational Training, Djibouti, Republic of Djibouti

出　　处：《World Journal of Engineering and Technology》2020年第4期720-738,共19页世界工程和技术（英文）

摘　　要：In this study</span><span style="font-family:Verdana;">,</span><span style="font-family:Verdana;"> nineteen different brands of bottled mineral waters (7 brands local and 12 brands imported) were collected from supermarkets and independent food stores throughout Djibouti. The chemical composition mentioned on the labels of the nineteen bottled mineral waters ha</span><span style="font-family:Verdana;">s</span><span style="font-family:Verdana;"> made the subject of a first verification by Ionic Balance Error (IBE). It was found out of the nineteen brands selected, 12 brands (2 brands local and 10 brands imported) had acceptable charge balance error. Correlation Analysis (CA), Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA) were used to analyze the data collected from the labels of bottled water. The obtained results showed that the 12 brands of studied waters can be grouped in 4 distinct classes with similar chemical characteristics. Two local and one imported brands have the same chemical composition but marketed under different names. It was observed that the chemical content local water brands w</span><span style="font-family:Verdana;">ere</span><span style="font-family:""><span style="font-family:Verdana;"> within the normal range prescribed by both WHO and USEPA except five imported water brands that have concentration values Ca, HCO</span>_{<span style="font-size:12px;font-family:Verdana;">3</span>}<span style="font-family:Verdana;">, Mg and SO</span>_{<span style="font-size:12px;font-family:Verdana;">4</span>}<span style="font-family:Verdana;"> beyond acceptable standards. Total hardness values classified most of the studied brands from moderate to very hard water.In this study</span><span style="font-family:Verdana;">,</span><span style="font-family:Verdana;"> nineteen different brands of bottled mineral waters (7 brands local and 12 brands imported) were collected from supermarkets and independent food stores throughout Djibouti. The chemical composition mentioned on the labels of the nineteen bottled mineral waters ha</span><span style="font-family:Verdana;">s</span><span style="font-family:Verdana;"> made the subject of a first verification by Ionic Balance Error (IBE). It was found out of the nineteen brands selected, 12 brands (2 brands local and 10 brands imported) had acceptable charge balance error. Correlation Analysis (CA), Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA) were used to analyze the data collected from the labels of bottled water. The obtained results showed that the 12 brands of studied waters can be grouped in 4 distinct classes with similar chemical characteristics. Two local and one imported brands have the same chemical composition but marketed under different names. It was observed that the chemical content local water brands w</span><span style="font-family:Verdana;">ere</span><span style="font-family:""><span style="font-family:Verdana;"> within the normal range prescribed by both WHO and USEPA except five imported water brands that have concentration values Ca, HCO</span>_{<span style="font-size:12px;font-family:Verdana;">3</span>}<span style="font-family:Verdana;">, Mg and SO</span>_{<span style="font-size:12px;font-family:Verdana;">4</span>}<span style="font-family:Verdana;"> beyond acceptable standards. Total hardness values classified most of the studied brands from moderate to very hard water.

关 键 词：Bottled Mineral Water Chemical Composition DJIBOUTI Statistical Analysis 

分 类 号：O17[理学—数学]