Bactericidal Effect of Solar Water Disinfection under Real Sunlight Conditions

M. Boyle, C. Sichel, P Fernandez Ibanez, G. B. Arias-Quiroz, M. Iriarte-Puna, A. Mercado, E. Ubomba-Jaswa, K. G. McGuigan

Research output: Contribution to journalArticle

97 Citations (Scopus)

Abstract

Batch solar disinfection (SODIS) inactivation kinetics are reported for suspensions in water of Campy- lobacter jejuni, Yersinia enterocolitica, enteropathogenic Escherichia coli, Staphylococcus epidermidis, and endo- spores of Bacillus subtilis, exposed to strong natural sunlight in Spain and Bolivia. The exposure time required for complete inactivation (at least 4-log-unit reduction and below the limit of detection, 17 CFU/ml) under conditions of strong natural sunlight (maximum global irradiance, 1,050 W m 2 10 W m 2) was as follows: C. jejuni, 20 min; S. epidermidis, 45 min; enteropathogenic E. coli, 90 min; Y. enterocolitica, 150 min. Following incomplete inactivation of B. subtilis endospores after the first day, reexposure of these samples on the following day found that 4% (standard error, 3%) of the endospores remained viable after a cumulative exposure time of 16 h of strong natural sunlight. SODIS is shown to be effective against the vegetative cells of a number of emerging waterborne pathogens; however, bacterial species which are spore forming may survive this inter- vention process.
LanguageEnglish
Pages2997-3001
JournalApplied and Environmental Microbiology
Volume74
Issue number10
DOIs
Publication statusPublished - 22 Apr 2008

Fingerprint

antibacterial properties
Sunlight
Disinfection
disinfection
Enteropathogenic Escherichia coli
enteropathogenic Escherichia coli
spore
Yersinia enterocolitica
inactivation
endospores
solar radiation
Staphylococcus epidermidis
Bacillus subtilis
Spores
exposure duration
Water
spores
cumulative exposure
Bolivia
irradiance

Keywords

  • Campylobacter jejuni
  • Yersinia enterocolitica
  • S. epidermidis
  • and non-verotoxin-producing Escherichia coli O157

Cite this

Boyle, M., Sichel, C., Fernandez Ibanez, P., Arias-Quiroz, G. B., Iriarte-Puna, M., Mercado, A., ... McGuigan, K. G. (2008). Bactericidal Effect of Solar Water Disinfection under Real Sunlight Conditions. Applied and Environmental Microbiology, 74(10), 2997-3001. https://doi.org/10.1128/AEM.02415-07
Boyle, M. ; Sichel, C. ; Fernandez Ibanez, P ; Arias-Quiroz, G. B. ; Iriarte-Puna, M. ; Mercado, A. ; Ubomba-Jaswa, E. ; McGuigan, K. G. / Bactericidal Effect of Solar Water Disinfection under Real Sunlight Conditions. In: Applied and Environmental Microbiology. 2008 ; Vol. 74, No. 10. pp. 2997-3001.
@article{0ca1e58c87e44cd9a73af249706c6811,
title = "Bactericidal Effect of Solar Water Disinfection under Real Sunlight Conditions",
abstract = "Batch solar disinfection (SODIS) inactivation kinetics are reported for suspensions in water of Campy- lobacter jejuni, Yersinia enterocolitica, enteropathogenic Escherichia coli, Staphylococcus epidermidis, and endo- spores of Bacillus subtilis, exposed to strong natural sunlight in Spain and Bolivia. The exposure time required for complete inactivation (at least 4-log-unit reduction and below the limit of detection, 17 CFU/ml) under conditions of strong natural sunlight (maximum global irradiance, 1,050 W m 2 10 W m 2) was as follows: C. jejuni, 20 min; S. epidermidis, 45 min; enteropathogenic E. coli, 90 min; Y. enterocolitica, 150 min. Following incomplete inactivation of B. subtilis endospores after the first day, reexposure of these samples on the following day found that 4{\%} (standard error, 3{\%}) of the endospores remained viable after a cumulative exposure time of 16 h of strong natural sunlight. SODIS is shown to be effective against the vegetative cells of a number of emerging waterborne pathogens; however, bacterial species which are spore forming may survive this inter- vention process.",
keywords = "Campylobacter jejuni, Yersinia enterocolitica, S. epidermidis, and non-verotoxin-producing Escherichia coli O157",
author = "M. Boyle and C. Sichel and {Fernandez Ibanez}, P and Arias-Quiroz, {G. B.} and M. Iriarte-Puna and A. Mercado and E. Ubomba-Jaswa and McGuigan, {K. G.}",
year = "2008",
month = "4",
day = "22",
doi = "10.1128/AEM.02415-07",
language = "English",
volume = "74",
pages = "2997--3001",
journal = "Applied and Environmental Microbiology",
issn = "0099-2240",
publisher = "American Society for Microbiology",
number = "10",

}

Boyle, M, Sichel, C, Fernandez Ibanez, P, Arias-Quiroz, GB, Iriarte-Puna, M, Mercado, A, Ubomba-Jaswa, E & McGuigan, KG 2008, 'Bactericidal Effect of Solar Water Disinfection under Real Sunlight Conditions', Applied and Environmental Microbiology, vol. 74, no. 10, pp. 2997-3001. https://doi.org/10.1128/AEM.02415-07

Bactericidal Effect of Solar Water Disinfection under Real Sunlight Conditions. / Boyle, M.; Sichel, C.; Fernandez Ibanez, P; Arias-Quiroz, G. B.; Iriarte-Puna, M.; Mercado, A.; Ubomba-Jaswa, E.; McGuigan, K. G.

In: Applied and Environmental Microbiology, Vol. 74, No. 10, 22.04.2008, p. 2997-3001.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Bactericidal Effect of Solar Water Disinfection under Real Sunlight Conditions

AU - Boyle, M.

AU - Sichel, C.

AU - Fernandez Ibanez, P

AU - Arias-Quiroz, G. B.

AU - Iriarte-Puna, M.

AU - Mercado, A.

AU - Ubomba-Jaswa, E.

AU - McGuigan, K. G.

PY - 2008/4/22

Y1 - 2008/4/22

N2 - Batch solar disinfection (SODIS) inactivation kinetics are reported for suspensions in water of Campy- lobacter jejuni, Yersinia enterocolitica, enteropathogenic Escherichia coli, Staphylococcus epidermidis, and endo- spores of Bacillus subtilis, exposed to strong natural sunlight in Spain and Bolivia. The exposure time required for complete inactivation (at least 4-log-unit reduction and below the limit of detection, 17 CFU/ml) under conditions of strong natural sunlight (maximum global irradiance, 1,050 W m 2 10 W m 2) was as follows: C. jejuni, 20 min; S. epidermidis, 45 min; enteropathogenic E. coli, 90 min; Y. enterocolitica, 150 min. Following incomplete inactivation of B. subtilis endospores after the first day, reexposure of these samples on the following day found that 4% (standard error, 3%) of the endospores remained viable after a cumulative exposure time of 16 h of strong natural sunlight. SODIS is shown to be effective against the vegetative cells of a number of emerging waterborne pathogens; however, bacterial species which are spore forming may survive this inter- vention process.

AB - Batch solar disinfection (SODIS) inactivation kinetics are reported for suspensions in water of Campy- lobacter jejuni, Yersinia enterocolitica, enteropathogenic Escherichia coli, Staphylococcus epidermidis, and endo- spores of Bacillus subtilis, exposed to strong natural sunlight in Spain and Bolivia. The exposure time required for complete inactivation (at least 4-log-unit reduction and below the limit of detection, 17 CFU/ml) under conditions of strong natural sunlight (maximum global irradiance, 1,050 W m 2 10 W m 2) was as follows: C. jejuni, 20 min; S. epidermidis, 45 min; enteropathogenic E. coli, 90 min; Y. enterocolitica, 150 min. Following incomplete inactivation of B. subtilis endospores after the first day, reexposure of these samples on the following day found that 4% (standard error, 3%) of the endospores remained viable after a cumulative exposure time of 16 h of strong natural sunlight. SODIS is shown to be effective against the vegetative cells of a number of emerging waterborne pathogens; however, bacterial species which are spore forming may survive this inter- vention process.

KW - Campylobacter jejuni

KW - Yersinia enterocolitica

KW - S. epidermidis

KW - and non-verotoxin-producing Escherichia coli O157

U2 - 10.1128/AEM.02415-07

DO - 10.1128/AEM.02415-07

M3 - Article

VL - 74

SP - 2997

EP - 3001

JO - Applied and Environmental Microbiology

T2 - Applied and Environmental Microbiology

JF - Applied and Environmental Microbiology

SN - 0099-2240

IS - 10

ER -