| Autor: |
Avery, L. M., Killham, K., Jones, D. L. |
| Předmět: |
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| Zdroj: |
Journal of Applied Microbiology; Apr2005, Vol. 98 Issue 4, p814-822, 9p |
| Abstrakt: |
l.m. avery, k. killham and d.l. jones. 2005.To determine the persistence ofEscherichia coliO157 in contrasting organic wastes spread to land and to assess the potential environmental risk associated with the disposal of these wastes to land.Twenty-seven organic wastes originating from slaughterhouses, wastewater treatment plants (raw and treated sewage), creameries and farms (bovine slurry), were inoculated withE. coliO157:H7 and incubated at 10°C. Although pathogen numbers gradually declined in all the wastes, albeit at different rates even in the same waste type,E. coliO157:H7 was still viable in 77% of organic wastes tested after 2 months.Long-term storage of organic wastes led to a significant and gradual decline inE. coliO157:H7 numbers. Consequently, storage may be a useful means of reducing the pathogen load of wastes destined for land application. However, in most cases, long-term storage cannot be expected to completely eliminateE. coliO157:H7 from waste.Our results indicate that current legislation may be insufficient to protect the environment fromE. coliO157:H7 contamination from untreated wastes spread to land. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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