Effect of sunlight on the survival of pathogenic E. coli in freshwater and sea water

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedings – Annual report year: 2011Research

Standard

Effect of sunlight on the survival of pathogenic E. coli in freshwater and sea water. / Surendraraj, Alagarsamy; Farvin, Sabeena; Thampuran, N.

WEFTA 2011 - Seafood for the Modern Consumer: Abstracts. Gothenburg : Chalmers tekniska högskola, 2011.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedings – Annual report year: 2011Research

Harvard

Surendraraj, A, Farvin, S & Thampuran, N 2011, Effect of sunlight on the survival of pathogenic E. coli in freshwater and sea water. in WEFTA 2011 - Seafood for the Modern Consumer: Abstracts. Chalmers tekniska högskola, Gothenburg, 41st Annual WEFTA Meeting, Gothenburg, Sweden, 27/09/2011.

APA

Surendraraj, A., Farvin, S., & Thampuran, N. (2011). Effect of sunlight on the survival of pathogenic E. coli in freshwater and sea water. In WEFTA 2011 - Seafood for the Modern Consumer: Abstracts Gothenburg: Chalmers tekniska högskola.

CBE

Surendraraj A, Farvin S, Thampuran N. 2011. Effect of sunlight on the survival of pathogenic E. coli in freshwater and sea water. In WEFTA 2011 - Seafood for the Modern Consumer: Abstracts. Gothenburg: Chalmers tekniska högskola.

MLA

Surendraraj, Alagarsamy, Sabeena Farvin and N. Thampuran "Effect of sunlight on the survival of pathogenic E. coli in freshwater and sea water". WEFTA 2011 - Seafood for the Modern Consumer: Abstracts. Gothenburg: Chalmers tekniska högskola. 2011.

Vancouver

Surendraraj A, Farvin S, Thampuran N. Effect of sunlight on the survival of pathogenic E. coli in freshwater and sea water. In WEFTA 2011 - Seafood for the Modern Consumer: Abstracts. Gothenburg: Chalmers tekniska högskola. 2011

Author

Surendraraj, Alagarsamy ; Farvin, Sabeena ; Thampuran, N. / Effect of sunlight on the survival of pathogenic E. coli in freshwater and sea water. WEFTA 2011 - Seafood for the Modern Consumer: Abstracts. Gothenburg : Chalmers tekniska högskola, 2011.

Bibtex

@inbook{97d1e16293cc425fbba7fbc3e75596a3,
title = "Effect of sunlight on the survival of pathogenic E. coli in freshwater and sea water",
abstract = "An enteropathogenic group of E. coli are the emerging category of pathogen of public health significance. Several recent pathogenic E. coli outbreaks are associated with drinking water. Aquaculture, the fast emerging food production sector also poses a pathogenic EHEC outbreak risk, as it regularly uses cow dung, a reservoir of this organism. Hence, a experiment was set up to study the duration of survival of pathogenic E. coli under sunlight and darkness. Eight pathogenic E. coli isolates from clinical (EPEC, ETEC, EHEC, EAEC), veterinary (CTE3, CTE4) and environmental sources (ASHE3, Rao II) were studied for their survival under sunlight and darkness in fresh water and seawater. Effect of direct sunlight on the viable but nonculturable (VBNC) state of cultures was also studied. The results of the study indicated a distinct pattern between freshwater system and seawater system. Pathogenic E. coli from different sources showed significantly higher level of destruction under direct sunlight than in complete darkness. A reduction of 1.1 to 5.7 log CFU was seen in fresh water after 90 to 105 min under direct sunlight and only 0.2 to 2 log reduction was observed in complete darkness in 5 to 96 h period. The effect of sunlight was severe in seawater and in selective media, where a higher cell reduction to an extent of 3 log CFU was observed.Survival period was least for environmental pathogens followed by veterinary and finally clinical pathogens with an exception of Shiga-toxigenic E. coli (STEC) from veterinary sources. Findings of this study, may aid the public health specialist to evolve better strategies to control these organism in the above systems.",
author = "Alagarsamy Surendraraj and Sabeena Farvin and N. Thampuran",
year = "2011",
language = "English",
booktitle = "WEFTA 2011 - Seafood for the Modern Consumer",
publisher = "Chalmers tekniska h{\"o}gskola",

}

RIS

TY - ABST

T1 - Effect of sunlight on the survival of pathogenic E. coli in freshwater and sea water

AU - Surendraraj, Alagarsamy

AU - Farvin, Sabeena

AU - Thampuran, N.

PY - 2011

Y1 - 2011

N2 - An enteropathogenic group of E. coli are the emerging category of pathogen of public health significance. Several recent pathogenic E. coli outbreaks are associated with drinking water. Aquaculture, the fast emerging food production sector also poses a pathogenic EHEC outbreak risk, as it regularly uses cow dung, a reservoir of this organism. Hence, a experiment was set up to study the duration of survival of pathogenic E. coli under sunlight and darkness. Eight pathogenic E. coli isolates from clinical (EPEC, ETEC, EHEC, EAEC), veterinary (CTE3, CTE4) and environmental sources (ASHE3, Rao II) were studied for their survival under sunlight and darkness in fresh water and seawater. Effect of direct sunlight on the viable but nonculturable (VBNC) state of cultures was also studied. The results of the study indicated a distinct pattern between freshwater system and seawater system. Pathogenic E. coli from different sources showed significantly higher level of destruction under direct sunlight than in complete darkness. A reduction of 1.1 to 5.7 log CFU was seen in fresh water after 90 to 105 min under direct sunlight and only 0.2 to 2 log reduction was observed in complete darkness in 5 to 96 h period. The effect of sunlight was severe in seawater and in selective media, where a higher cell reduction to an extent of 3 log CFU was observed.Survival period was least for environmental pathogens followed by veterinary and finally clinical pathogens with an exception of Shiga-toxigenic E. coli (STEC) from veterinary sources. Findings of this study, may aid the public health specialist to evolve better strategies to control these organism in the above systems.

AB - An enteropathogenic group of E. coli are the emerging category of pathogen of public health significance. Several recent pathogenic E. coli outbreaks are associated with drinking water. Aquaculture, the fast emerging food production sector also poses a pathogenic EHEC outbreak risk, as it regularly uses cow dung, a reservoir of this organism. Hence, a experiment was set up to study the duration of survival of pathogenic E. coli under sunlight and darkness. Eight pathogenic E. coli isolates from clinical (EPEC, ETEC, EHEC, EAEC), veterinary (CTE3, CTE4) and environmental sources (ASHE3, Rao II) were studied for their survival under sunlight and darkness in fresh water and seawater. Effect of direct sunlight on the viable but nonculturable (VBNC) state of cultures was also studied. The results of the study indicated a distinct pattern between freshwater system and seawater system. Pathogenic E. coli from different sources showed significantly higher level of destruction under direct sunlight than in complete darkness. A reduction of 1.1 to 5.7 log CFU was seen in fresh water after 90 to 105 min under direct sunlight and only 0.2 to 2 log reduction was observed in complete darkness in 5 to 96 h period. The effect of sunlight was severe in seawater and in selective media, where a higher cell reduction to an extent of 3 log CFU was observed.Survival period was least for environmental pathogens followed by veterinary and finally clinical pathogens with an exception of Shiga-toxigenic E. coli (STEC) from veterinary sources. Findings of this study, may aid the public health specialist to evolve better strategies to control these organism in the above systems.

M3 - Conference abstract in proceedings

BT - WEFTA 2011 - Seafood for the Modern Consumer

PB - Chalmers tekniska högskola

CY - Gothenburg

ER -