Mycological and Bacteriological Quality and Safety of Bottled Water in Ethiopia.

Q3 Immunology and Microbiology

Open Microbiology Journal Pub Date : 2018-06-29 eCollection Date: 2018-01-01 DOI:10.2174/1874285801812010200

Tesfaye L Bedada, Firehiwot A Dera, Redwan M Edicho, Samson G Gebre, Yosef B Asefa, Waktole G Sima, Rahel F Maheder, Tigist Y Negassi, Almaz G Biegna

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引用次数: 7

Abstract

Background: Safe water supply is vital and can result in significant benefits to health. However, contaminated bottled water poses a great health risk due to the poor microbiological quality of water.

Methods and materials: A retrospective study was conducted on 222 Bottled water samples collected from various regions of Ethiopia from January 2008 to December 2015, tested and recorded in Ethiopian Public Health Institute to determine heterotrophic plate count and Staphylococcus aureus by pour plate method; for coliforms using multiple tubes fermentation techniques; for mould and yeast count using spread method, and for Salmonellae and Shigella spp. using ES ISO 6579 and ES ISO 21567. The data was analyzed using SPSS 20 statistical package.

Results: Among the total samples examined from 44 brands, detections of heterotrophic plate count, mould, yeast, total and thermotolerant coliforms, Escherichia coli and Staphylococcus aureus were observed in 114 (51.4%), 33 (14.9%), 5 (2.3%), 2 (0.9%), 1 (0.5%), 1 (0.5%) and 1 (0.5%) samples respectively, but there were no detections of Salmonellae nor Shigellae species.

Conclusion: About 40% of bottled water samples were mycologically and bacteriologically unsafe for human consumption. To prevent public health hazards, regular monitoring of bottled water using quality indicators should be a priority agenda.

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埃塞俄比亚瓶装水的真菌学和细菌学质量和安全。

背景:安全供水至关重要，可对健康产生重大益处。然而，由于瓶装水的微生物质量差，污染的瓶装水构成了很大的健康风险。方法与材料:对2008年1月至2015年12月在埃塞俄比亚不同地区采集的222份瓶装水样品进行回顾性研究，并在埃塞俄比亚公共卫生研究所进行检测和记录，采用倒盘法检测异养平板计数和金黄色葡萄球菌;大肠菌群采用多管发酵技术;霉菌和酵母计数采用扩散法，沙门氏菌和志贺氏菌计数采用ES ISO 6579和ES ISO 21567。采用SPSS 20统计软件包对数据进行分析。结果:44个品牌样品中检出异养平板计数114份(51.4%)，霉菌、酵母菌、总大肠菌群和耐热大肠菌群33份(14.9%)，耐高温大肠菌群5份(2.3%)，大肠杆菌2份(0.9%)，1份(0.5%)，1份(0.5%)，1份(0.5%)，1份(0.5%)，金黄色葡萄球菌1份(0.5%)，未检出沙门氏菌和志贺氏菌。结论:约40%的瓶装水样品在真菌学和细菌学上不安全。为了防止对公众健康造成危害，使用质量指标对瓶装水进行定期监测应该是一项优先议程。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Open Microbiology Journal Immunology and Microbiology-Immunology and Microbiology (all)

CiteScore

1.80

自引率

0.00%

发文量

期刊介绍： The Open Microbiology Journal is a peer-reviewed open access journal which publishes research articles, reviews/mini-reviews, case studies, guest edited thematic issues and short communications/letters covering theoretical and practical aspects of Microbial systematics, evolutionary microbiology, immunology, virology, parasitology , bacteriology, mycology, phycology, protozoology, microbial ecology, molecular biology, microbial physiology, biochemistry, microbial pathogenesis, host-microbe interaction, systems microbiology, synthetic microbiology, bioinformatics. The Open Microbiology Journal , a peer-reviewed journal, is an important and reliable source of current information on developments in the field. The emphasis will be on publishing quality papers rapidly and freely available to researchers worldwide.