Abstract

Enteropathogens released into the environment can represent a serious risk to public health. Soil clay content has long been known to have an important effect on enteropathogen survival in soil, generally enhancing survival. However, clay mineral composition in soils varies, and different clay minerals have specific physiochemical properties that would be expected to impact differentially on survival. This work investigated the effect of clay materials, with a predominance of a particular mineral type (montmorillonite, kaolinite, or illite), on the survival in soil microcosms over 96 days of Listeria monocytogenes, Salmonella Dublin, and Escherichia coli O157. Clay mineral addition was found to alter a number of physicochemical parameters in soil, including cation exchange capacity and surface area, and this was specific to the mineral type. Clay mineral addition enhanced enteropathogen survival in soil. The type of clay mineral was found to differentially affect enteropathogen survival and the effect was enteropathogen-specific. (C) 2013 Elsevier B.V. All rights reserved.

Keywords

Clay mineral; Pathogen survival; Salmonella; Listeria; Escherichia coli

Published in

Science of the Total Environment
2014, Volume: 468-469, pages: 302-305
Publisher: ELSEVIER SCIENCE BV

SLU Authors

• Hillier, Stephen

  • Department of Soil and Environment, Swedish University of Agricultural Sciences
    

UKÄ Subject classification

Soil Science
Environmental Sciences


Publication identifier

DOI: https://doi.org/10.1016/j.scitotenv.2013.08.037

Permanent link to this page (URI)

https://res.slu.se/id/publ/65477