scholarly journals Detection ofHelicobacter pyloriin City Water, Dental Units' Water, and Bottled Mineral Water in Isfahan, Iran

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Ahmad Reza Bahrami ◽  
Ebrahim Rahimi ◽  
Hajieh Ghasemian Safaei
Keyword(s):  
Water Samples ◽  
Mineral Water ◽  
Tap Water ◽  
Public Places ◽  
Isfahan Province ◽  
Coccoid Form ◽  
Cultural Method ◽  
Water Cooler ◽  
H Pylori ◽  
Bottled Mineral Water

Helicobacter pyloriinfection in human is one of the most common infections worldwide. However, the origin and transmission of this bacterium has not been clearly explained. One of the suggested theories is transmission via water. This study was conducted to determine the prevalence rate ofH. pyloriin tap water, dental units' water, and bottled mineral water in Iran. In the present study, totally 200 water samples were collected in Isfahan province and tested forH. pyloriby cultural method and polymerase chain reaction (PCR) by the detection of theureC (glmM)gene. Using cultural method totally 5 cultures were positive. Two out of 50 tap water samples (4%), 2 out of 35 dental units' water (5.8%) samples, and 1 out of 40 (2.5% ) from water cooler in public places were found to be contaminated withH. pylori.H. pylori ureCgene was detected in 14 (7%) of water samples including 5 tap water (10%), 4 dental units' water (11.4%), 1 refrigerated water with filtration, and 4 (10%) water cooler in public places samples. This may be due to the coccoid form of bacteria which is detected by PCR method.

Detection of Pseudomonas aeruginosa by PCR in tap-water and bottled mineral water in the Isfahan province of Iran

2011 ◽  
Vol 11 (5) ◽  
pp. 642-646 ◽  
Author(s):  
Hassan Momtaz ◽  
Ebrahim Rahimi ◽  
Saadat Moshkelani
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Water Samples ◽  
Mineral Water ◽  
Tap Water ◽  
Molecular Method ◽  
Pcr Assay ◽  
Isfahan Province ◽  
Operon Gene ◽  
Polymerase Chain ◽  
Bottled Mineral Water

The purpose of this study was to consider the use of a simple polymerase chain reaction (PCR) as an accurate, safe and rapid method to detect Pseudomonas aeruginosa in tap-water and bottled mineral water from Isfahan province, Iran. A total of 224 tap-water and bottled mineral water samples were taken over six months, from July to December 2010. DNA (deoxyribonucleic acid) was extracted from water samples after filtration and culture and PCR was performed by primers derived from the ETA (Exotoxin A) operon gene sequence of the P. aeruginosa. Out of all the samples, 13.8% and 1.97% were positive by this molecular method for tap-water and bottled mineral water, respectively. The results show that PCR assay could become a valuable diagnostic or screening test for water quality.

scholarly journals Yeasts and filamentous fungi in bottled mineral water and tap water from municipal supplies

2007 ◽  
Vol 50 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Mirian Ueda Yamaguchi ◽  
Rita de Cássia Pontello Rampazzo ◽  
Sueli Fumie Yamada-Ogatta ◽  
Celso Vataru Nakamura ◽  
Tânia Ueda-Nakamura ◽  
...  
Keyword(s):  
Filamentous Fungi ◽  
Water Samples ◽  
Mineral Water ◽  
Tap Water ◽  
Health Hazard ◽  
Total Coliform ◽  
Species Level ◽  
Potential Health ◽  
Potential Health Hazard ◽  
Bottled Mineral Water

The main objective of this study was to analyse the occurrence of yeasts and filamentous fungi in drinking water as well as to investigate their correlation with the indicator bacteria of faecal pollution. Yeasts were detected in 36.6% and 11.6% of the bottled mineral on water dispensers and tap water samples from municipal system, respectively. Twenty-one (35.0%) of bottled mineral water and two (3.3%) of tap water samples were positive for filamentous fungi. For bottled mineral water 12 (20.0%) of 60 samples were positive for total coliform, compared with 3(5.0%)out of 60 samples from tap water. The mineral water from dispensers was more contaminated than tap water. Strains belonging to the genera Candida identified to the species level were C. parapsilosis, C. glabrata and C. albicans. Thus, bottled mineral water from water dispensers and tap water could be considered a possible transmission route for filamentous fungi and yeasts, and could constitute a potential health hazard, mainly to immunocompromised indivuals.

scholarly journals The occurrence of Aeromonas spp. in the bottled mineral water, well water and tap water from the municipal supplies

2008 ◽  
Vol 51 (5) ◽  
pp. 1049-1055 ◽  
Author(s):  
Denise de Oliveira Scoaris ◽  
Fernando Cezar Bizerra ◽  
Sueli Fumie Yamada-Ogatta ◽  
Benício Alves de Abreu Filho ◽  
Tânia Ueda-Nakamura ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Mineral Water ◽  
Tap Water ◽  
Indicator Bacteria ◽  
Well Water ◽  
Total Coliforms ◽  
Water Well ◽  
Artesian Water ◽  
Bottled Mineral Water

The aim of this work was to study the occurrence of Aeromonas sp in the bottled mineral water, well water and tap water from the municipal supplies. Positive samples were found for Aeromonas spp. 12.7% from the mineral water, 8.3% from the artesian water and 6.5% from the tap water. The recovery of Aeromonas spp. was significantly higher in the bottled mineral and artesian water than in the tap water from municipal supplies. The occurrence of the Aeromonas spp. did not correlate significantly with the contamination indicator bacteria (i.e. total coliforms) in the artesian water samples. However, a significant correlation was found between Aeromonas spp. and total coliforms in the both mineral water and tap water samples. The presence or absence of a correlation between the indicator bacteria and Aeromonas could reflect the occasional appearance of the pathogen in the drinking water and the different rates of survival and recovery of these agents compared with those fecal indicators. The finding that 41.6, 14.8 and 9.0 % of the artesian water, bottled mineral water and tap water, respectively, sampled in the current study failed to meet the Brazilian standard for total coliforms in the drinking water should therefore be of concern.

scholarly journals Evaluation of Minerals Content of Drinking Water in Malaysia

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Azrina Azlan ◽  
Hock Eng Khoo ◽  
Mohd Aizat Idris ◽  
Amin Ismail ◽  
Muhammad Rizal Razman
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Mineral Water ◽  
Tap Water ◽  
Fluoride Concentration ◽  
Daily Intake ◽  
Peninsular Malaysia ◽  
Mineral Water Sample ◽  
Geographical Locations ◽  
Iron And Manganese

The drinking and mineral water samples obtained from different geographical locations had concentrations of the selected minerals lower than the standard limits, except for manganese, arsenic, and fluoride. The concentrations of manganese and arsenic in two mineral water samples were slightly higher than the standard international recommended limits. One mineral water sample had a fluoride concentration higher than the standard limits, whereas manganese was not detected in nine drinking and mineral water samples. Most of the selected minerals found in the tap water samples were below the international standard limits, except for iron and manganese. The concentrations of iron and manganese in the tap water samples were higher than the standard limits, which were obtained from one and three of the studied locations, respectively. The potable water obtained from various manufacturers and locations in Peninsular Malaysia is safe for consumption, as the minerals concentrations were below the standard limits prescribed by the Malaysian Food Regulations of 1985. The data obtained may also provide important information related to daily intake of these minerals from drinking water.

Commercialization Conditions and Practices Influence the Microbiological Quality of Mineral Waters

2008 ◽  
Vol 71 (6) ◽  
pp. 1253-1257 ◽  
Author(s):  
SÉRGIO A. P. NUNES FILHO ◽  
ANDERSON S. SANT'ANA ◽  
ADRIANO G. CRUZ
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Water Samples ◽  
Mineral Water ◽  
Microbiological Quality ◽  
Mineral Waters ◽  
Fecal Coliforms ◽  
Street Vendors ◽  
Total Coliforms ◽  
Bottled Mineral Water

The objective of the present study was to determine the microbiological quality of bottled mineral water marketed in commercial establishments and by street vendors and to evaluate the influence of the storage and maintenance conditions on the microbiological quality of the product. Ten samples from the same batches of five different brands of water were analyzed, for a total of 50 samples. Of the five brands analyzed, only one (brand A), when collected in a commercial establishment, complied with the legal Brazilian standards for mineral water with respect to the presence of total coliforms, fecal coliforms, and Pseudomonas aeruginosa. The remaining samples failed to comply with these microbiological standards for at least one of the parameters evaluated. The water samples obtained from street vendors were inferior in microbiological quality to samples from the same batch that were obtained from commercial establishments.

Influence of a Mineral Water on the Rheological Characteristics of Reconstituted Infant Formulas and Diluted Cows' Milk

1997 ◽  
Vol 25 (5) ◽  
pp. 275-284 ◽  
Author(s):  
A Rottoli ◽  
S Decarlis ◽  
ML Giannì ◽  
M Giovannini
Keyword(s):  
Mineral Water ◽  
Mineral Content ◽  
Tap Water ◽  
Bottled Water ◽  
Electrolyte Balance ◽  
Rheological Characteristics ◽  
Infant Formulas ◽  
Buffering Power ◽  
Milk Casein ◽  
Bottled Mineral Water

A bottled spring water with a low mineral content was compared with tap water in the reconstitution and/or dilution of five different infant formulas and cows' milk. The osmolality, buffering power and renal solute load potential of the formulas reconstituted with the bottled water were all significantly lower than when tap water was used ( P < 0.01). When the bottled water was used to dilute cows' milk, the morphology of milk casein precipitates (after addition of rennet) was finer and more dispersed than when tap water was used. For formula reconstitution and milk dilution, a benefit, in terms of solute/electrolyte balance, appears to be conferred on infants by the improved rheological characteristics of modified milks reconstituted or diluted with this bottled mineral water.

scholarly journals Iodine determination in mineral water using ICP-MS: method development and analysis of brands available in Israeli stores

2021 ◽  
Author(s):  
Vasiliy Rosen ◽  
Orit Gal Garber ◽  
Yona Chen
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Mineral Water ◽  
Method Development ◽  
Molar Ratio ◽  
Icp Ms ◽  
Limit Of Quantitation ◽  
Drinking Water Samples ◽  
Bottled Mineral Water ◽  
Iodine Determination

Reliable iodine determination in drinking water samples has gained importance in the last few decades, mostly due to intensive use of both desalinized water that lacks several important nutritional elements, and bottled mineral water. ICP-MS is a sensitive, high-throughput method for iodine determination that must be performed under alkaline conditions because of the volatile nature of some iodine species. However, in water samples with high pH (>10), slow precipitation of calcium (Ca) and/or magnesium (Mg) carbonates leads to clogging of the ICP-MS nebulizer. We propose preventing this precipitation by adding the chelating agent ethylenediaminetetraacetic acid (EDTA) at 0.1% to a 2% ammonium hydroxide matrix. This concentration of EDTA sufficed for most drinking water samples studied, as long as a 1:1 molar ratio of EDTA to Ca+Mg concentration in the water was maintained. The limit of quantitation of the developed method for iodine was <0.1 µg L-1. The average iodine concentration in various brands of bottled mineral water sold in Israel was relatively low (7.67 ± 6.38 µg I L-1). Regular consumption of either desalinated water or bottled mineral water may induce iodine deficiency in Israeli consumers. Therefore, continuous follow-up of the iodine status in both tap and bottled water is strongly recommended.

scholarly journals Assessment of Effective Dose from Radioactive Isotopes Contained in Mineral Waters Received by Patients During Hydrotherapy Treatments

Water ◽  
2019 ◽  
Vol 12 (1) ◽  
pp. 97
Author(s):  
Maria Karpińska ◽  
Jacek Kapała ◽  
Agnieszka Raciborska ◽  
Stanisław Mnich
Keyword(s):  
Effective Dose ◽  
Water Samples ◽  
Mineral Water ◽  
Tap Water ◽  
Biological Effects ◽  
Mineral Waters ◽  
Radioactive Isotopes ◽  
Protection Method ◽  
Natural Treatment ◽  
Effective Doses

Hydrotherapy is a natural treatment and health protection method. Treatments using natural mineral water are gaining popularity as an alternative to pharmacotherapy or as additional support to pharmacotherapy in many types of diseases. The aim of the study was to determine the effective dose obtained as a result of baths and inhalations using popular mineral water samples. A total of 18 commercially available water samples used in hydrotherapy were tested for their radioactive isotope content. The following isotopes were found: 40K, 208Tl, 212Bi, 212Pb, 214Bi, 214Pb, 226Ra, 228Ac, 234Th. Effective doses received by patients during inhalation and bathing using the tested mineral water samples were determined. The collected sample activity was measured using gamma spectrometry. The effective doses received by patients from a series of inhalation treatments ranged from 170.4 to 22.9 µSv. Infants receive the highest effective dose as a result of inhalation of mineral water. The doses received by patients as a result of bathing in the studied mineral water samples were in the range of from 0.04 to 1.1 µSv and were comparable with doses from ordinary baths in tap water (0.06 µSv). The determined doses are very low; thus, they are unlikely to cause noticeable biological effects.

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