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The status of microbiological contamination of water using to produce bottled drinking water in Khanh Hoa province in 2022

Nguyen Thi Ngoc Duyen Le Quoc Phong Tran Thi Thuy Nga Dao Thi Van Khanh Phan Thi Hoai Trinh Do Thai Hung
Published 03/31/2023

Article Details

How to Cite
Nguyen Thi Ngoc Duyen, Le Quoc Phong, Tran Thi Thuy Nga, Dao Thi Van Khanh, Phan Thi Hoai Trinh, Do Thai Hung. "The status of microbiological contamination of water using to produce bottled drinking water in Khanh Hoa province in 2022". Vietnam Journal of Food Control. vol. 6, no. 1, pp. 100-106, 2023
PP
100-106
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385

Main Article Content

Abstract

Ninety-three samples of source water, used to produce bottled drinking water at bottled drinking water producers in Khanh Hoa province in 2022, were examined for microbiological criteria such as coliform, Escherichia coli, Pseudomonas aeruginosa, and HPC (Heterotrophic Plate Count). Results indicated that 19/93 (20.4%) of samples did not meet the microbiological requirements according to QCVN 01-1:2018/BYT. In which, the percentage of microbiological unsatisfactory well water (42.9%, 6/14) was higher than that of tap water (16.5%, 13/79). The proportion of source water samples of bottled drinking water facilities that did not meet the microbiological requirements in Cam Lam district (83.3%) was higher than those of Cam Ranh (33.3%), Dien Khanh (30%), Ninh Hoa (13.6%), Nha Trang (8%), and Van Ninh (7.7%). Unsatisfactory microbiological criteria included coliform (16.1%), P. aeruginosa (15.1%), and E. coli (1.1%). In addition, there were 8/93 (8.6%) samples with HPC higher than the recommended limit (500 CFU/mL) of the Environmental Protection Agency (EPA). The means of HPC, coliform, and P. aeruginosa were 4,2 × 102, 6,2 × 101, and 1,1 × 102 CFU/100 mL, respectively. Contaminated source water is one of the risks of microbiological contamination in finished bottled drinking water. Therefore, bottled drinking water producers in Khanh Hoa need to maintain good infection control and minimize the risk of microbial contamination from source water to finished bottled drinking water.

Keywords:

Source water, bottled drinking water, microbiological contamination, Khanh Hoa.

References

[1]. N. V. Thuan, P. V. Doanh, and N. T. T. Huyen, "Bacteriological assessment of bottled drinking water in 5 provinces of central highland, Vietnam," Vietnam Journal of Food Control, vol. 2, no. 3, pp. 86-89, 2019.
[2]. L. T. Toan, L. Q. Toan, and N. Q. Dung, "Situation of microbiological contamination of bottled drinking water and some related factors in Dong Thap in 2016," Journal of Community Medicine, no. 35, pp. 75-78, 2016.
[3]. T. M. Phuong, L. T. T. Ha, V. D. Thiem, and V. H. Ha, "Situation of microbial contamination in bottled drinking water at production facilities in Hung Yen province in 2018," Vietnam Association of Preventive Medicine, no 2, pp. 87-94, 2019.
[4]. C. T. D. Thuy, "The rate of microbial contamination of bottled drinking water and some factors related to food safety and hygiene conditions at a bottled water facility in Ben Tre province in 2016," Proceeding of the 8th Food Safety Conference, Vietnam Food Administration, Ministry of Health, pp. 361 - 367, 2016.
[5]. N. T. N. Duyen, "Survey on the actual situation of microbiological contamination in bottled drinking water in some provinces of South Central Vietnam in 2019, Research - Pasteur Institute in Nha Trang," 2019.
[6]. V. T. D. Linh, "Situation and some factors affecting food safety conditions of bottled drinking water production facilities in Ninh Binh province in 2019," Master thesis, Hanoi University of Public Health, 2019.
[7]. Ministry of Health, "National technical regulation on Domestic Water Quality, QCVN 01-1:2018/BYT," 2018 (in Vietnamese).
[8]. US-EPA, "National Primary Drinking Water Regulations," Synthetic Organic Chemicals, 2023.
[9]. Ministry of Health, "National technical regulation for bottled/packaged natural mineral waters and drinking waters, QCVN 6-1:2010/BYT," 2010 (in Vietnamese).
[10]. D. N. Hai, L. T. Ha, D. P. Hien, Đ. T. Thuong, and T. T. G. Huong, "Actual situation of quality of drinking and domestic water at water supply stations in Hanoi city in 2014," Vietnam Association of Preventive Medicine, no 4, pp. 184-189, 2015.
[11]. L. T. T. Huong, T. K. Long, P. X. Son, N. T. Ha, L. V. Chinh, and N. T. L. Huong, "Status of water quality of Thi Vai river and domestic water in 3 communes Long Phuoc, Phuoc Thai and Binh An, Long Thanh district, Dong Nai province in 2011," Vietnam Association of Preventive Medicine, no 11, pp. 171-180, 2016.
[12]. P. T. X. Binh, L. T. P. Quynh, and P. T. M. Huong, "Initial survey on the density of microorganisms in domestic water in some districts in Hanoi city," Vietnam Journal of Science, Technology and Engineering, no 55, pp. 99-102, 2019.

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