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Water-transmitted fungi are involved in degradation of concrete drinking water storage tanks
ID
Novak Babič, Monika
(
Author
),
ID
Gunde-Cimerman, Nina
(
Author
)
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https://www.mdpi.com/2076-2607/9/1/160
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Abstract
Global warming, globalization, industrialization, and the rapidly growing population at present increasingly affect the production of safe drinking water. In combination with sustainable bio-based or recycled materials, used for water distribution systems, these factors promote emerging pathogens, including fungi. They can proliferate in oligotrophic water systems, affect the disinfection process, degrade building materials, and cause diseases in humans. In this study, we explored fungalbased degradation of modern concrete water storage tanks and the presence of fungi in chlorinated drinking water at the entrance and exit of the tanks. The degradation potential of isolated 52 fungal strains and their growth at different oligotrophic conditions was tested in vitro. Forty percent of strains grew at extremely oligotrophic conditions, and 50% classified as aerophilic. Two-thirds of tested strains produced acids, with Penicillium strains as the best producers. Only 29.7% of the strains were able to grow at 37 °C, and none of them was isolated from drinking water at consumers’ taps. Although not yet part of the guidelines for building materials in contact with drinking water, fungi should be taken into consideration in case of visible degradation. Their number of consumers’ endpoints should be checked to exclude possible health risks for consumers.
Language:
English
Keywords:
degradation
,
chlorination
,
drinking water
,
environmental factors
,
fungal contaminants
,
growth of fungi
,
materials in contact with drinking water
,
water storage tanks
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
BF - Biotechnical Faculty
Publication status:
Published
Publication version:
Version of Record
Year:
2021
Number of pages:
16 str.
Numbering:
Vol. 9, iss. 1, art. 160
PID:
20.500.12556/RUL-134833
UDC:
577
ISSN on article:
2076-2607
DOI:
10.3390/microorganisms9010160
COBISS.SI-ID:
48801539
Publication date in RUL:
03.02.2022
Views:
780
Downloads:
138
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Record is a part of a journal
Title:
Microorganisms
Shortened title:
Microorganisms
Publisher:
MDPI AG
ISSN:
2076-2607
COBISS.SI-ID:
523277081
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
Description:
This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:
12.01.2021
Secondary language
Language:
Slovenian
Keywords:
razgradnja
,
klorinacija
,
pitna voda
,
okoljski faktorji
,
glivni patogeni
,
rast gliv
,
materiali v stiku s pitno vodo
,
vodohrani
Projects
Funder:
ARRS - Slovenian Research Agency
Project number:
Z7-2668
Name:
Vpliv dezinfekcije in gradbenih materialov v stiku s pitno vodo na pojav oportuno patogenih in na azole rezistentnih gliv v pitni vodi
Funder:
ARRS - Slovenian Research Agency
Project number:
P1-0198
Name:
Molekularno-biološke raziskave mikroorganizmov
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