Molecular fingerprinting of bacterial populations in groundwater and bottled mineral water

2001 ◽  
Vol 57 (3) ◽  
pp. 412-418 ◽  
Author(s):  
Dewettinck T. ◽  
Hulsbosch W. ◽  
Hege K. ◽  
Top E. ◽  
Verstraete W.
1994 ◽  
Vol 40 (1) ◽  
pp. 72-77 ◽  
Author(s):  
Ana-Cristina Ferreira ◽  
Paula Vasconcellos Morais ◽  
Milton S. da Costa

The quantitative variation in the microflora in bottled mineral waters stored in polyvinyl chloride bottles was studied immediately after bottling and after 7 days storage, over 9 months. The microflora was determined by combining total counts using ethidium bromide, and the number of iodonitrophenyltetrazolium (INT)-positive cells determined with heterotrophic plate counts on R2A for prolonged incubation periods at 22 and 37 °C. Immediately after bottling of mineral water A, the total counts with ethidium bromide varied between 70.0 and 495.0 bacteria/mL. The number of INT-positive bacteria varied between 14.0 and 40.0% counts. The heterotrophic plate counts were higher at 22 °C than at 37 °C and varied between 1.1 and 13.2% and between 0.7 and 9.3% of the total counts, respectively. After 7 days storage, total bacterial counts increased by 1000 times, indicating multiplication of bacteria that were present in low numbers immediately after bottling. The percentage of INT-positive bacteria remained between 2.6 and 39.0% of the total counts but the number of culturable bacteria was higher than the number of INT-positive cells. Similar counts were found in other mineral waters (B, C, and D), but the numbers of INT-positive cells in two of them (B and D) were higher than the heterotrophic plate counts at 22 °C. These results show the presence in the aquifer and (or) bottling system of a flora that is neither INT-positive nor culturable and reinforce previous results that still mineral waters have a large bacterial population after storage.Key words: mineral water, bacterial populations, ethidium bromide, INT, HPC.


2017 ◽  
Vol 140 ◽  
pp. 173-179 ◽  
Author(s):  
Mayeen Uddin Khandaker ◽  
Noor Liyana Mohd Nasir ◽  
Nur Syahira Zakirin ◽  
Hasan Abu Kassim ◽  
Khandoker Asaduzzaman ◽  
...  

2020 ◽  
Vol 2 (2) ◽  
pp. 315-354
Author(s):  
Aldinata Windharta ◽  
◽  
Andre Christian Efendy, ◽  
Daniel Christian ◽  
M. Rashid Damahuri ◽  
...  

The author aims to find out about urban people needs in bottled mineral water. The author uses the Means-End-Chain method which is commonly used to find what attributes are needed by consumers of a product or service. This research uses qualitative methods with in-depth interviews to answer the question of what content is most expected of urban communities in bottled mineral water. There are three factors that we examine, namely attributes, consequences, and values. By understanding the means end chain from our sample, we hope that related party can develop a product from our research result.


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 ◽  
...  

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.


1986 ◽  
Vol 49 (6) ◽  
pp. 471-476 ◽  
Author(s):  
PETER J. SLADE ◽  
MOHAMMED A. FALAH ◽  
AHMED M. R. AI-GHADY

A total of 139 replicate samples of water were tested for Aeromonas hydrophila and coliforms. These consisted of 95 replicates from bottled mineral water, 13 replicates from flower petal infusions and 31 samples of domestic municipality supplies. Of these, 59 (43%) were positive for A. hydrophila, 15 (11%) were positive for coliforms and 11 (8%) positive for both A. hydrophila and coliforms. Most of the isolates of A. hydrophila came from various batches of one brand of bottled mineral water, none of which contained coliforms. The organism was isolated more frequently from newer samples, particularly those bottled for 59 d or less. Samples of treated water from one municipality were free from coliforms and A. hydrophila. Chlorinated water from another town was free from coliforms, but some samples contained A. hydrophila. In unchlorinated water from a third municipal source, there was a high degree of correlation between incidence of A. hydrophila and presence of coliforms. A selective method, using media without antibiotics, for isolation of A. hydrophila was used. A novel medium for the presumptive identification of A. hydrophila, gelatin arginine dihydrolase (GAD) medium, was assessed, with confirmation of suspected isolates using the API 20E system. Of 109 isolates from two selective agars identified with the organism on API strips, 18 (16.5%) were falsely gelatinase negative in GAD medium, of which 9 (8.3%) also gave false-negative arginine dihydrolase reactions. Of those presumptively identified as A. hydrophila in GAD, 4/95 isolates (4.2% false-positives) were not confirmed.


1998 ◽  
Vol 08 (01) ◽  
pp. 11-18 ◽  
Author(s):  
V. John Kennedy ◽  
A. Augusthy ◽  
K. M. Varier ◽  
P. Magudapathy ◽  
S. Panchapakesan ◽  
...  

Trace elements present in bottled mineral water have been studied by PIXE and ICP-MS. Samples from ten different brands of bottled mineral water were prepared by preconcentration techniques. Measurements were carried out using the 2 MeV proton beam obtained from 3 MV Tandem pelletron accelerator at the Institute of Physics, Bhubaneswar. Our results are compared with Indian standard packaged natural mineral water specifications, World Health Organisation (WHO) and European guidelines for drinking water standards. Concentration of aluminium was found to be more in one of the brands. In general, our results are comparable to the above standards.


2015 ◽  
Vol 27 (9) ◽  
pp. 3494-3498 ◽  
Author(s):  
S.A. Abd El Aal ◽  
A.A. El-Saftawy ◽  
M. Alkadi ◽  
S. Salama ◽  
S. Kandil

2020 ◽  
Vol 8 (2) ◽  
pp. 111
Author(s):  
Filda Ramadani

This researcher is motivated by analyzing the application of Total Quality Management well in a in industrial company in maintaining the quality of the products produced at PT. Sabina Tirta Utama, Through the application of TQM it is expected that the company can provide satisfaction to customers with the result produced. The formulation of the problem in this study is divided two into: (1) Analyzing the application of TQM  in maintaining the quality of the products produced at PT. Sabina Tirta Utama. (2) Whether the quality produced is in accordance with standard SNI. This study ams to find out how the application of TQM at PT. Sabina Tirta Utama and to find out the quality the products produced at PT. Sabina Tirta Utama.Intense competition will require companies to provide quality product to consumers. But the company’s concern is not limited to the quality of the product produced, but also on aspeets of the process, human resources (HR) and the environment. PT. Sabina Tirta Utama is a company that produces bottled mineral water in Samarinda and faces competition in a business that is growing increasingly. One of the methods carried out by PT. Sabina Tirta Utamain order to remain competitive by implementing Total Quality Management (TQM) . through an obsession toward quality, teamwork, continus system improvement, education and training, unity of purpose, and employee involvement. TQM is a system to achive the goals of an organization, one of which is maintaining product quality.Based on the result of interviews and observations, implementation of TQM in maintaining the quality of bottled mineral water products at PT. Sabina Still has reject products every month and teamwork is still careless in packing. Then As the result quality of bottled mineral waterproduced by PT. Sabina Tirta Utama has met the standard.


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