Share This Author
Irrigation water as source of foodborne pathogens on fruit and vegetables.
Groundwater, surface water, and human wastewater are commonly used for irrigation and bacteria and protozoa tend to show the poorest survival outside a human host, whereas viruses and helminths can remain infective for months to years.
Development of a Procedure for Discriminating among Escherichia coli Isolates from Animal and Human Sources
- S. Guan, R. Xu, Shu Chen, J. Odumeru, C. Gyles
- Medicine, BiologyApplied and Environmental Microbiology
- 1 June 2002
AFLP analysis was the most effective of the three methods that were evaluated for differentiating E. coli isolates of livestock, wildlife, or human origin that might be used to predict the sources of fecal pollution of water.
Survey of Ontario Bulk Tank Raw Milk for Food-Borne Pathogens.
The results confirm the presence of bacterial food pathogens in raw milk and emphasize the importance of continued diligence in the application of hygiene programs within dairies and the separation of raw milk from pasteurized milk and milk products.
Effect of pasteurization on survival of Mycobacterium paratuberculosis in milk.
- A. Gao, L. Mutharia, S. Chen, K. Rahn, J. Odumeru
- Biology, MedicineJournal of dairy science
- 1 December 2002
Results indicate that Mptb may survive HTST pasteurization when present at > or = 10(5) cfu/ml in milk, and suggest that milk is a potential source of human exposure to this organism.
Identification of contamination sources of Bacillus cereus in pasteurized milk.
Microbial assessment of irrigation water used for production of fruit and vegetables in Ontario, Canada.
With the exception of fecal streptococci, which increased in number toward the end of the study, none of the indicators displayed a significant trend over the course of the season, as determined by linear regression analysis of indicator concentrations over time.
Vanillin inhibits pathogenic and spoilage microorganisms in vitro and aerobic microbial growth in fresh-cut apples
Use of the bead beater for preparation of Mycobacterium paratuberculosis template DNA in milk.
- J. Odumeru, A. Gao, S. Chen, M. Raymond, L. Mutharia
- Medicine, BiologyCanadian journal of veterinary research = Revue…
- 1 October 2001
An improved method for template DNA preparation was examined and showed that the improved assay was 10- to 10(4)-fold more sensitive than the PCR assays using template DNA prepared by other lysis procedures including boiling alone, freeze-thaw plus boiling, or use of commercial kits for lysis.
Community dynamics of a mixed-bacterial culture growing on petroleum hydrocarbons in batch culture.
The effects of various hydrocarbon substrates, and a chemical surfactant capable of enhancing crude-oil biodegradation, on the community structure of a mixed-bacterial inoculum were examined in batch…
Assessment of the Microbiological Quality of Ready-To-Use Vegetables for Health-Care Food Services.
The microbiological quality of ready-to-use (RTU) vegetables, including chopped lettuce, salad mix, carrot sticks, cauliflower florets, sliced celery, coleslaw mix, broccoli floreTS, and sliced green peppers was determined before and after processing and increased levels of Listeria monocytogenes in RTU vegetables were associated with temperature abuse.