WIFSS Researchers


Rob Atwill Director P: (530) 757-5766 Email	Linda J. Harris Associate Director P: (530) 754-9485 Email	Michele Jay-Russell Food Safety and Security Specialist P: (530) 757-5756 Email

WIFSS Funded Research

Automated biosensor for detection of microbial pathogens in fruit and vegetable irradiation/wash water. (2003), Grant Award: $25,796 - Delwiche, M., Csordas, A., Barak, J., UC Davis PDF
Ammonia disinfection of animal feeds (2003), Grant Award: $75,000 - Tajkarimi, M., Riemann, P., Hajmeer, M., Gomez, E., Cliver, D., UC Davis PDF
Biofilm formation by different Listeria monocytogenes genetic lineages. (2003), Grant Award: $50,000 - Young, G., UC Davis PDF
Ceftiofur treatment and its effect on dairy calf commensal bacteria. (2003), Grant Award: $25,000 - Sischo, W., UC Davis
Chemical & physical inactivation of Toxoplasma gondii oocysts. (2003), Grant Award: $100,000 - Conrad, P., Gardner, I., Miller, M., Lagunas-Solar, M., UC Davis PDF
Clonal dissemination of antimicrobial resistant Escherichia coli. (2003), Grant Award: $36,732 - Sischo, W., UC Davis
Effect of grape pomace compost on survival and growth potential of E. coli 0157:H7 in soil. (2006), Grant Award: $38,500 - Suslow, T., Maeda, S. Sbodio, A., Sosa, M., UC Davis PDF
Effect of wilting and tissue infiltration on the behavior of Escherichia coli O157:H7 on leaf lettuce directly after harvest. (2006), Grant Award: $39,855 - Frank, J.F. and Folsom, J.P., Chmielewski, R., University of Georgia
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Effectiveness of electrolyzed water in CIP applications (2003), Grant Award: $49,900 - Amaratunga, K., Danyluk, M., Harris, L.J., Singh, R.P., UC Davis PDF
Environmental stress signaling & pathogenesis in Listeria monocytogenes. (2003), Grant Award: $50,000 - Price, C., UC Davis
Evaluation of EHEC contamination of lettuce, soil and water by Canada Geese. (2003), Grant Award: $95,320 - Suslow, T., UC Davis
Evaluation of growth kinetics of E. coli O157:H7 on bagged spinach, crisp head lettuce and romaine lettuce in relation to consumption decisions based on visual quality and off-odors. (2006), Grant Award: $39,523 & 18,112 - Sudarshana, M. and Suslow, T., UC Davis
Evaluation of portable detection systems for Cryptosporidium and Giardia of Johneâ€™s disease. (2003), Grant Award: $20,000 - Zornetzer, H., Miller, W., Conrad, P., UC Davis PDF
Evaluation of the impact of vacuum cooling on Escherichia coli O157:H7 (2006), Grant Award: $32,505 - Li, H. and Tajkarimi, M., Western Institute for Food Safety and Security
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Infiltration of edible plants by E. coli O157:H7 (2006), Grant Award: $32,505 - Young, G., UC Davis PDF
List of research questions by WIFSS lettuce steering committee (2006), WIFSS, Western Institute for Food Safety and Security
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Perchlorate exposure in lactating Rhesus monkeys (2005), Grant Award: $40,000 - Ozpinar, A., UC Davis 05/01/2005-04/31/2006
Quantitative microbial risk assessment of pre-harvest risk factors for lettuce and leafy greens (2006), Grant Award: $12,188 - Danyluk, M. and Schaffner, D., Rutgers the State University of New Jersey
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Statewide web-based foodborne consumer complaint system. (2003), Grant Award: $5,000 - Holliday-Hansen, M., California Dept of Public Health PDF
Survival of attenuated Escherichia coli O157:H7 or surrogate in field-inoculated lettuce (2006), Grant Award: $21,636 - Sudarshana, M. and Harris, L.J., UC Davis
The Vibrio microarray chip for aquatic ecosystems (2003), Grant Award: $20,000 - Foley, J., UC Davis PDF
Transfer prevalence of E. coli O157:H7 from soil, water, adn feces contaminated with low numbers of the pathogen to lettuce plants of varying age and condition. (2006), Grant Award: $49,590 - Matthews, K., Rutgers the State University of New Jersey
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Transmission of Cephalosporin Resistance Genes in Salmonella (2003), Grant Award: $50,000 - Sischo, W., UC Davis
Use of freshwater clams for detection of waterborne tularemia. (2004), Grant Award: $50,000 - Chomel, B., UC Davis

National Produce Research

A Novel Approach to Investigate Internalization of Escherichia coli O157:H7 in Lettuce and Spinach (2007), Sharma, M., USDA-ARS Food Safety Laboratory Weblink
A System Approach to Minimize Escherichia coli O157:H7 Food Safety Hazards Associated with Fresh and Fresh-Cut Leafy Greens (2007), Grant Award: $2,500,000 - Doyle, M.P., National Integrated Food Safety Initiative
Assessing Risk Factors for the Persistence of Salmonella Enteritidis Phage Type 30 in Almond Orchards (2002), Grant Award: $572,264 - Harris, L.J., UC Davis
Attachment, Uptake, Dissemination and Inactivation of Foodborne Enteric Caliciviruses in Vegetables (2007), Grant Award: $394,000 - Saif, L.J., Ohio State University
Chemiluminescence Detection of Microbial Contaminants on Fresh Produce (2000), Grant Award: $325,284 - Alocilja, E., National Integrated Food Safety Initiative
Detection, Source Identification, Environmental Transport, Fate, and Treatment of Pathogenic Microorganisms Derived from Animal Wastes (2005), Ibekwe, A., Bradford, S., U.S. Department of Agriculture Weblink
Determining the environmental factors contributing to the extended survival or regrowth of foodborne pathogens in composting systems (2007), Jiang, X., Zehnder, G., Luo, F., Fresh Express
Development of New and Improved Systems to Enhance Food Safety Inspection and Sanitation of Food Processing (2006), Kim, M,. Lefcourt, A., Delwiche, S., Chao, K., USDA-ARS Food Safety Laboratory Weblink
Ecology and Epidemiology of Escherichia coli O157:H7 in Fresh Produce Production Regions of the Central California Coast (2007), Mandrell, R. E., U.S. Food and Drug Administration
Effect of grape pomace compost and reclaimed wastewater on survival and growth potential of E. coli O157:H7 in soil (2006), Grant Award: $38,500 - Dr. Trevor V. Suslow, UC Davis
Enhancing the Microbial Safety of Fresh Fruits and Fresh-Cut Melon (2002), Grant Award: $370,820 - Suslow, T. V., UC Davis
Epidemiology and Ecology of E. Coli O157:H7 in the Salinas Valley (2006), Mandrell, R., U.S. Department of Agriculture Weblink
Factors that influence the ability of E. coli O157:H7 to multiply on lettuce and leafy greens (2007), Harris, L., Sudarshana, M., Li, H., Suslow, T., Fresh Express
Fate of Escherichia coli O157:H7 on fresh and fresh-cut iceberg lettuce and spinach in the presence of normal background microflora (2007), Harrison, M., Hurst, W., Kerr, W., Fresh Express
Fresh Produce Safety Training Program for the Southeast (2000), Grant Award: $539,512 - Sanders, D., National Integrated Food Safety Initiative
Global Good Agricultural Practices Conference to Explore the Impact of Current Research and Extension Programs (2003), Grant Award: $50,000 - Gravani, R., Cornell University
Good Agriclultural Practices Online Produce Safety Course (2006), Grant Award: $598,861 - Bihn, E.A., Cornell University
Impacts of Irrigation Water Quality on the Persistence and Transmission of E. coli O157:H7 from Soil to Plants, Ibekwe, A.M., Yang, C-H., U.S. Department of Agriculture
Improving Microbial Safety and Shelf-Life of Fresh Produce with Antimicrobial Films (2000), Grant Award: $403,994 - Hettiarachcy, N.S., National Integrated Food Safety Initiative
Improving the Efficacy of Sanitizers on Fresh Produce and Produce Processing Surfaces Using Electrostatic Sprays (2004), Grant Award: $316,667 - Hung,Y.C., University of Georgia
Improving the Safety of Fresh Fruits and Vegetables with Chlorine Dioxide Gas Using a Miniaturized Industrial-Size Tunnel System (2004), Grant Award: $599,790 - Linton, R., Purdue University
Integrating Social and Biological Sciences to Enhance Adoption of Vegetable Safety Behaviors from Farm to Table (2007), Grant Award: $2,500,000 - LeJeune, J., National Integrated Food Safety Initiative
Interaction of Escherichia coli O157:H7 with fresh leafy green produce (2007), Giron, J., Fresh Express
Interactions of Salmonella enterica and E. coli O157:H7 with Protozoa from Fresh Produce (2007), Berk, S., Brandl, M., U.S. Department of Agriculture PDF
Internalization of E. coli in Apples under Field and Laboratory Conditions (2000), Grant Award: $342,601 - Pierson, M., Virginia Polytechnic Institute
Intervention Technologies for Enhancing the Safety and Security of Fresh and Minimally Processed Produce and Solid Plant-Derived Foods (2005), Niemira, B., Sites, J., Liao, C. Annous, B., Fan, X., U.S. Department of Agriculture Weblink
Microbial Ecology and Safety of Fresh on-Farm Organically Grown Produce (2006), Millner, P., Patel, J., Sharma, M., Nou, X., Mulbry, W., Shelton, D., USDA-ARS Food Safety Laboratory Weblink
Microbial Food Safety of Fresh and Fresh-Cut Produce (2006), Bhagwat, A., Luo, Y., McEvoy, J., Conway, W., U.S. Department of Agriculture Weblink
Microbiology and Control of Pathogen Contamination on Fresh and Fresh-Cut Produce (2006), Patel, J., Sharma, M., Solomon, M., Nou, X., USDA-ARS Food Safety Laboratory Weblink
Molecular Biology and Genomics of Foodborne Pathogens (2006), Mandrell, R., Friedman, M., Lazo, G., Quinones, B., Fagerquist, C., Mill,er W., Parker, C., Wong, R., U.S. Department of Agriculture Weblink
Molecular Microbiology and Control of Enteric Pathogens That Contaminate Fresh Produce (2005), Brandl, M., Cooley, M., Barak-Cunningham, J., Gorski, L., Mandrell, R., Tian, P., U.S. Department of Agriculture Weblink
Movement of Escherichia coli O157:H7 in spinach and dissemination to leafy greens by insects (2007), Fletcher, J., Wayadande, A., Talley, J., Gilliand, S., Fresh Express
Novel Gaseous Chlorine Dioxide Treatments for Disinfection of Lettuce and Leafy Greens to Enhance Food Safety and Preserve Quality (2006), Grant Award: $500,435 - Suslow, T.V., UC Davis
Novel Methods to Sanitize Fruits and Vegetables Using Chlorine Dioxide Gas (2000), Grant Award: $427,435 - Linton, R., National Integrated Food Safety Initiative 36 months
Perchlorate levels in feed, water and eggs from laying-hen farms (Pilot Study) (2007), Grant Award: $35,038 - Aysel Ozpinar, National Center for Enviromental Health, CDC and University of CA, Davis 06/01/2007-12/30/2007
Produce Safety & Biosecurity - A Multi-State Research, Education, and Extension Initiative (2002), Grant Award: $568,370 - Harrison, M.A., University of Georgia
Quantifying the risk of transfer and internalization of Escherichia coli O157:H7 during processing of leafy greens (2007), Ryser, E., marks, B., Tood, E., Fresh Express
Reducing Microbial Hazards in Raw Produce through Farm Worker Education (2000), Grant Award: $596,627 - Gravani, R., National Integrated Food Safety Initiative 36 months
Safety, Quality, and Sustainability of Small-Farm Production of Apples and Cider (2000), Grant Award: $512,061 - Reitmeier, C., National Integrated Food Safety Initiative 36 months
Salmonella Enterica Interactions with Fresh Produce (2006), Brandl, M., U.S. Department of Agriculture Weblink
Sanitization of leafy vegetables by integrating gaseous ozone treatment into produce processes (2007), Sastry, S., Fresh Express
Strenghtening the National Good Agricultural Practices (GAPS) Program through Expanded Collaboration, Research and Economic Modeling (2001), Grant Award: $399,996 - Gravani, R., Cornell University
Subsurface contamination and internalization of Escherichia coli O157:H7 in pre-harvest lettuce (2007), Doyle, M., Beuchat, L., Erickson, M., Riley, D., Zhang, G., Ma, L., Fresh Express
Survival and Transmission of Pathogenic Viruses in an Agricultural Environment (2007), Kniel-Tolbert, K., University of Delaware
Use of gfp and lux to Track Pathogen Contamination, Growth and inactivation on Produce Contaminated via Manure/Water (Farm to Fork) (2003), Grant Award: $500,000 - Reuhs, B., Purdue University