nifa food safety portfolio: an overview · –food safety, nutrition and health (15%) –practical...
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NIFA Food Safety Portfolio:
an overview
Max Teplitski, Ph.D.
National Program Leader
Food Safety and Microbiology
USDA NIFA IFSN
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Opportunities and challenges in
Food Safety and Food Security
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2002 (tomatoes), 141 cases
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2006 (tomatoes), 183 cases
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2008 (cantaloupes), 51 cases
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2009 (alfalfa sprouts), 235 cases
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2010 (alfalfa sprouts), 140 cases
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2011 (sprouts), 25 cases
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2008 (tomatoes/peppers), 1442 cases
2012 (cantaloupes), 261 cases
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2013 (cucumbers), 84 cases
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2014 (cucumbers), 257 cases
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Identifying, characterizing and mitigating such
foodborne hazards is one of the goals of
NIFA’s Food Safety portfolio
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Survival and internalization of human pathogens in leafy greens University of California - Davis
Images courtesy of Dr. M. Melotto
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Survival and internalization of human pathogens in leafy greens (2) University of California - Davis
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Survival and internalization of human pathogens in leafy greens (3) University of California - Davis
• Salmonella (not E.coli) evolved to evade
plant defense responses
• Weakened plant defense responses lead
to an increase (1-2 log/cm2) in human
pathogens • Lettuce cultivars differ (1-1.5 log) in
susceptibility to Salmonella
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Dissemination of pathogens with surface water: an intervention Cornell University
Images courtesy of Dr. R. Ivanek
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Dissemination of pathogens with surface water: an intervention (2) Cornell University
•Chance of contamination is higher
in furrow plots than in drip-irrigated
plots
•UV irradiation reduced pathogen
load by 100-1,000 fold
•Water treatment with urea reduced
pathogen load by 100-1,000 fold
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Focus of NIFA Food Safety programs
• Prevention, detection, and control of food and waterborne pathogens
• Ecology of food-borne pathogens
• Plant-pathogen interactions
• Improved processing to promote food safety
• Improving safety of fresh produce
• Ensuring safety of production systems, including organic agriculture
• Systems approach for mitigation of antibiotic resistance
• Interactions between food safety, nutrition and human health
• Providing food safety education
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Agriculture and Food Research Initiative
• Peer-reviewed competitive grants program
• FY15 funding: ~$274 million
• Projects funded: 554
– Plant health and production, plant products (~29%)
– Bioenergy, natural resources, and environment (17.5%)
– Food safety, nutrition and health (15%)
– Practical education to improve the lives of Youth, Consumers and Families (12%)
– Animal health and production, animal products (~11%)
– Agriculture economics and rural communities (10%)
– Agriculture systems and technology (5%)
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Antimicrobial resistance and mitigation strategies in beef cattle University of Florida
Images by Dr. KC Jeong
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Antimicrobial resistance and mitigation strategies in beef cattle (2) University of Florida
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Antimicrobial resistance and mitigation strategies in beef cattle (3) University of Florida
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Antimicrobial resistance and mitigation strategies in beef cattle (4) University of Florida
Images by Dr. KC Jeong
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Vaccine to reduce Campylobacter in chickens University of Arizona
• Recombinant Salmonella Vaccine (oral and spray) reduced
Campylobacter load by 100-10,000 CFU/g feces in vaccine
trials
• U.S. Patent (approved), pending in Europe, China and Brazil
• Stakeholder survey to collect current interventions and
awareness of new FSIS performance standards
• Dynamic simulation model representative of a broiler
production system with inputs from stakeholders to allow
prediction of efficacy and costs of various interventions
Images courtesy of Dr. B.Law
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Novel Salmonella control practices and integrated education NC State University
Images courtesy of Dr. H. Hassan
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Novel Salmonella control practices and integrated education (2) NC State University
• Prebiotic GOC reduced Salmonella
load by 2-2.5 log (99% reduction)
• Vaccination reduced Salmonella load
by 3-3.5 log (99.9% reduction)
• GOC modulated gut microbiota (more
Firmicutes, Bacilli) to resist Salmonella
• Novel bacteriocin-producing
Lactobacillus isolated
• Developed education and software
programs about food-borne pathogens
and food safety for K-12, 4-H and the
public
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Controlling Lawsonia infections of pigs to reduce Salmonella shedding: an intervention trial
University of Minnesota
Images courtesy of Dr. R. Isaacson
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Controlling Lawsonia infections of pigs to reduce Salmonella shedding: an intervention trial (2)
University of Minnesota
•Lawsonia intracellularis increases shedding of
Salmonella enterica
•Vaccination against L. intracellularis will reduce
shedding of S. enterica
•Challenge with S. enterica reduced microbiota
but either challenge with L. intracellularis or use of a
live attenuated vaccine increased microbial diversity
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Recovery of low-tolerance pathogens from foods and water University of Hawaii-Manoa
• Electroflotation to achieve truly real time detection of trace
contaminants with portable biotechnology
Images courtesy of Dr. D. Jenkins
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Rapid food safety test with phage-conjugated nanoparticles Cornell University
Images courtesy of Dr. S. Nugen
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Engineered water nanostructures (EWNS) to inactivate pathogens in fresh produce
Harvard University
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Science-Based Messages to Improve Consumers’ Storage, Handling, and Preparation of Poultry and Poultry Products
Tennessee State
• Bacteria survive on some food packages
for months
• Youth are willing to share food safety
information with parents (74% increase in
youth’s knowledge, 64% willing to share
with parents)
• Adding food safety steps within recipe
instructions increases safe food handling
behaviors by 82-94%
• Type of kitchen lighting impacts visual
perception of meat doneness
http://www.tnstate.edu/tsuaged/peepcurriculum.aspx
Images courtesy of Dr. S. Godwin
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USDA-NIFA FDA-CFSAN
FSMA Implementation Partnership
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FSMA Framework for Industry Curriculum Development and Dissemination
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Overall Vision
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Add-on curricula
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NIFA Food Safety Programs
• Approximately $40 million each year
• Range from $300,000 to $5 million
• Conference grants – up to $50,000
• International collaborations
• Training of future work force