Cornell University Faculty and Staff
Please contact Kathryn Boor or Martin Wiedmann if you would like to be included in this listing. Cornell University scientists are invited to submit a short description of research, extension and teaching interests to be added to this site.
Faculty and staff can be found under several subcategories, including Microbial Food Safety , Microbial Water Safety, Food and Water Safety Extension, Preharvest Food Safety/Veterinary Medicine, Chemical Food Safety, and Chemical Water Safety.
Antje Baeumner, Associate Professor, Biological and Environmental Engineering
In current research electrochemical and optical biosensors are being developed, e.g. for the direct extra-laboratory detection of pathogenic microorganisms, pesticides and natural toxins in the environment in food and medical diagnostics. Molecular biological techniques are also involved in the development of these biosensors for the detection of pathogens such as Crytosporidium parvum. Microfabrication techniques are currently used for the preparation of signal transducers, and microfluidic devices (µTAS) micro Total Analytical Systems) will play a major role in the development of novel biosensing systems that will not only serve as easy-to-use sensing devices but will also allow their incorporation into more complex automated systems. Email address: ajb23@cornell.edu
Kathryn J. Boor, Professor, Department of Food Science
Microbiological quality and safety of dairy products. Adaptation of bacterial cells to environmental stresses. Physiology of pathogenic bacteria. Dr. Boor’s email address is kjb4@cornell.edu
Ashim K. Datta, Professor, Biological and Environmental Engineering
Research projects focus the engineering of heat and mass transfer processes in foods. For example, we are studying the uniformity and heating rates in microwave heating for either reheating or sterilization applications. Non-uniform heating can lead to microbial safety problems, in addition to loss of organoleptic quality. We have a fundamental engineering approach to relate the food geometry and properties, and oven parameters, to the non-uniformity of heating. Our goal is to provide guides for product and process development, retaining the food safety application. We are also developing microwave sterilization. In addition, we also have expertise to look into microbial safety aspects of conventional heating processes such as canning. E-mail address: akd1@cornell.edu
Lois Levitan, Program Leader, Environmental Risk Analysis Program, Communication
The Environmental Risk Analysis Program (ERAP) endeavors to facilitate and improve understanding, evaluation and communication about environmental and health risks. ERAP is developing resources and training programs to help citizens and policy-makers interpret scientific information risk issues, and then make informed decisions which appripriately balance levels of concern and action with levels of risk and impact. Started in summer 1998, ERAP is an integrated applied research and outreach program of the Center for the Environment at Cornell University. Email Address:lcl3@cornell.edu
Joe M. Regenstein, Professor of Food Science, Department of Food Science, Cornell Kosher Food Initiative; Adjunct Professor, Department of Population Medicine and Diagnostic Sciences.
One of our current interests is scombrotoxin in seafood as it relates to HACCP. I am also interested in policy issues related to food safety. This incorporated into both the Food Law and Food Waste Management courses at times impacts the work of the Cornell Kosher Food initiative (e.g, many of the currently proposed food safety treatments for meat are NOT kosher).
Email Address: jmr9@cornell.edu
Ynte H. Schukken, Professor, Department of Population Medicine and Diagnostic Sciences
Quality of Milk Promotion Services is a New York State program to help farmers produce high quality milk. The program works on a daily basis on the farms in New York and surrounding states. Samples for bacteriological culturing are obtained from milk (approx. 200,000/yr) and the cows environment. Original research is an important component of the program. Research projects include molecular epidemiology of microorganisms, antibiotic treatment and vaccine efficacy trials, and immunology of mastitis. Email address: yhs2@cornell.edu
Karl J. Siebert, Professor, Department of Food Science & Technology (Geneva)
Modeling of microbial sampling (stimulation) and growth inhibition of bacteria (predictive microbiology); classification and identification of microorganisms (numerical taxonomy); development of selective media. Dr. Siebert’s e-mail address is kjs3@cornell.edu.
Martin Wiedmann, Professor, Department of Food Science
His research interests include the pathogenesis, evolution, epidemology and diagnosis of bacterial food-borne diseases. His current work concentrates on the molecular characterization of Listeria monocytogenes, factors important for transmission along the food chain and pathogenesis of animal and human food-borne disease. His e-mail address is mw16@cornell.edu
Randy W. Worobo, Associate Professor, Food Science and Technology
Current research interests include fruit and vegetable microbiology and the safety of minimally processed foods and juices; alternative approaches to heat pasteurization of fruit and vegetable juices; biopreservation of foods using lactic acid bacteria. Dr. Worobo’s e-mail address is rww8@cornell.edu
Antje Baeumner, Associate Professor, Biological and Environmental Engineering
In current research electrochemical and optical biosensors are being developed, e.g. for the direct extra-laboratory detection of pathogenic microorganisms, pesticides and natural toxins in the environment in food and medical diagnostics. Molecular biological techniques are also involved in the development of these biosensors for the detection of pathogens such as Crytosporidium parvum. Microfabrication techniques are currently used for the preparation of signal transducers, and microfluidic devices (µTAS) micro Total Analytical Systems) will play a major role in the development of novel biosensing systems that will not only serve as easy-to-use sensing devices but will also allow their incorporation into more complex automated systems. Email address: ajb23@cornell.edu
Lois Levitan, Program Leader, Environmental Risk Analysis Program, Communication
The Environmental Risk Analysis Program (ERAP) endeavors to facilitate and improve understanding, evaluation and communication about environmental and health risks. ERAP is developing resources and training programs to help citizens and policy-makers interpret scientific information risk issues, and then make informed decisions which appripriately balance levels of concern and action with levels of risk and impact. Started in summer 1998, ERAP is an integrated applied research and outreach program of the Center for the Environment at Cornell University. Email Address:lcl3@cornell.edu
Food and Water Safety Extension
Kathryn J. Boor, Professor, Department of Food Science
Microbiological quality and safety of dairy products. Adaptation of bacterial cells to environmental stresses. Physiology of pathogenic bacteria. Dr. Boor’s email address is kjb4@cornell.edu
Food Safety, sanitation, product quality, production, and marketing issues associated with the processing, wholesale, distribution, retail, and food service sectors of the seafood industry. Coordinate and conduct seafood HACCP training programs for the seafood industry and federal and state regulatory agencies. Provide technical assistance to seafood businesses with the development and implementation of HACCP plans. Coordinate and conduct educational programs on seafood products and food safety, quality, and nutrition issues associated with seafood for the general public, food and nutrition professionals and anglers who consume their catch. Email: klg9@cornell.edu. You can visit the Sea Grant Web Site for further information on this and other programs.
Office located at SUNY Stony Brook on Long Island. Mailing address:
Ken Gall, 146 Suffolk Hall, SUNY at Stony Brook, NY 11794
Phone: 516-632-8730. Fax: 516-632-8216.
Email: klg9@cornell.edu.
Robert B. Gravani, Professor, Department of Food Science
Extension programs focus on food safety and sanitation in all sectors of the food industry including food processors, retailers and the food service industry as well as federal and state regulatory agencies, journalists and consumers. Conduct HACCP training workshops for the food industry and provide technical assistance to firms developing and implementing HACCP plans. Research activities focus on consumers’ knowledge of food safety and home food preparation practices. E-mail address: rbg2@cornell.edu
Lois Levitan, Program Leader, Environmental Risk Analysis Program, Communication
The Environmental Risk Analysis Program (ERAP) endeavors to facilitate and improve understanding, evaluation and communication about environmental and health risks. ERAP is developing resources and training programs to help citizens and policy-makers interpret scientific information risk issues, and then make informed decisions which appropriately balance levels of concern and action with levels of risk and impact. Started in summer 1998, ERAP is an integrated applied research and outreach program of the Center for the Environment at Cornell University. Email Address:lcl3@cornell.edu
Olga Padilla-Zakour, Associate Professor, Food Science and Technology, Director of New York State Food Venture Center
The NYS Food Venture Center works closely with federal and state regulatory agencies to provide Processing Authority service to entrepreneurs wishing to introduce new food products into the market. The Director of the Center, acting as a Processing Authority, reviews the proposed formulation and manufacturing procedures, makes recommendations and required changes to obtain a safe food product that complies with regulations, and issues a detailed schedule process that is filed with the appropriate state and federal agencies. This safety review is required in most cases to obtain a NYS license to manufacture food products. The Center received over 250 requests for Processing Authority service in 1997, and more than 300 schedule processes for new/improved products were issued. The Center also provides outreach and educational activities in Food Safety and Technology through workshops such as the Better Process Control School (required by FDA and USDA for manufacturers of low acid and acidified canned and aseptic products) and a quarterly newsletter. Dr. Padilla-Zakour’s e-mail address is oip2@nysaes.cornell.edu. You can also contact Judy Anderson, Extension Support Specialist for the Center at her e-mail address: jla2@nysaes.cornell.edu
Marvin Pritts, Professor, Department of Fruit and Vegetable Science
Food safety-related research and extension projects are conducted in with collaboration Steve Reiners, Anu Rangarajan, Laura Pederson, and Tony Shelton. A brochure entitled, "Prevention of foodborne illness begins on the farm" was published in 1997; the URL is: http://www.fvs.cornell.edu/Faculty/php/MarvinPritts/food.html. It has been widely used in NY and many other states because it gives practical information for farmers on how they can reduce risks. We are also involved in a research project (survey) on manure management on NY farms, trying to identify sources of risks for foodborne illness by understanding water and nutrient management practices. We intend to develop an extension program based upon the results. E-mail address: mpp3@cornell.edu
Anusuya Rangarajan, Associate Professor, Department of Fruit and Vegetable Science
Research and extension projects are conducted in collaboration with Steve Reiners (Dept. of Horticulture, NYAES), Marvin Pritts (Dept. of Fruit and Vegetable Science), and Laura Pederson (Cornell Cooperative Extension, Ontario/ Wayne/ Yates/ Steuben Co). Projects focus on working with the fruit and vegetable industries in NYS to address issues of food safety from ‘seed to farm stand or farm gate. Many of the concerns focus on production practices related to: 1) use of manure and other organic waste materials, 2) irrigation water sources and application, and 3) post-harvest handling. To address these concerns, we have produced an extension brochure titled, "Prevention of Food-Borne Illness Begins on the Farm," which has been distributed through extension as well as local, regional and national grower newsletters or publications. This brochure summarizes our current knowledge as to potential farming practices which may be ‘critical control points’ for risk of pathogen contamination. In order to learn about actual management practices in these areas, we have administered a survey to all NYS fruit and vegetable growers. With a better understanding of the current production practices, we will be able to: 1) identify important research and educational needs in the areas of nutrient, irrigation and post harvest management of fruits and vegetables, and 2) identify research questions and results to address the potential risks of pathogen contamination of NYS grown produce. E-mail address: ar47@cornell.edu
Steve Reiners, Associate Professor, Department of Horticulture, NYSAES
Research and extension projects are conducted in collaboration with Anusuya Rangarajan, Marvin Pritts, and Laura Pederson. Projects focus on working with fruit and vegetable industries in NYS to address issues of food safety from ‘seed to farm stand or farm gate. Many of the concerns focus on production practices related to: 1) use of manure and other organic waste materials, 2) irrigation water sources and application, and 3) post-harvest handling. To address these concerns we have produced an extension brochure titled, "Prevention of Food-Borne Illness Begins on the Farm," which has been distributed through extension as well as local, regional and national grower newsletters or publications. This brochure summarizes our current knowledge as to potential farming practices which may be ‘critical control points’ for risk of pathogen contamination. In order to learn about actual management practices in these areas, we have administered a survey to all NYS fruit and vegetable growers. With a better understand of the current production practices, we will be able to: 1) identify important research and educational needs in the areas of nutrient, irrigation and post harvest management of fruits and vegetables, and 2) identify research question and results to address the potential risks of pathogen contamination of NYS grown produce. E-mail address: sr43@cornell.edu
Preharvest Food Safety/Veterinary Medicine
Hollis N. Erb, Professor, Veterinary Clinical Sciences
Food safety-related research projects focus on modeling of dairy cow mastitis; this disease potentially affects food safety because of the potentials for both therapeutic/prophylactic drugs and pathogenic organisms to enter the food supply. Other research projects explore the potential for the wild plant Chenopodium ambrosioides to serve as a sustainable-agriculture-friendly anthelmintic for goats both in developing countries (Honduras) and in "organic farms" in the USA. We are checking for residues in the milk and meat. E-mail address: hne1@cornell.edu
Rob Gilbert, Associate Dean, Clinical Programs and Professional Service, College of Veterinary Medicine
Food safety-related research projects include studies on dairy producer management practices associated with avoiding milk antibiotic residues in NY and is Wis, Va, Pa, and Cal. This was a collaborative effort with Univ of Wis, Va Tech, Penn St, and UC Davis. In cooperation with Dr. Chris Rossiter at Cornell and many others, a collaborative study with Kansas State and UC Davis is in progress to monitor Salmonella and other food-borne pathogens in dairy cattle. E-mail address: rog1@cornell.edu
Yrjo Gröhn Professor, Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine
Dr. Gröhn graduated from the College of Veterinary Medicine, Helsinki, Finland in 1977. He holds a Ph.D. from Helsinki and an M. Sc. in genetics and MPVM from the University of California, Davis. Since 1986 Dr. Gröhn has worked at Cornell University. Currently he is Professor of Epidemiology and Associate Chair for Academic Programs in the Department of Population Medicine and Diagnostic Sciences. Dr. Gröhn's research interests include production medicine, analytical epidemiology; production diseases in dairy cattle; epidemiological methods; pre-harvest food safety, salmonellosis. Email address:ytg1@cornell.edu
Patrick McDonough, Associate Professor, Diagnostic Laboratory, Department of Populations Medicine and Diagnostic Science,College of Veterinary Medicine.
Dr. McDonough's research interests include the microbiology of the Enterobacteriaceae especially the salmonellae and E. coli, 2) the microbiology and epidemiology of food-borne disease including the salmonellae in cattle and poultry, Campylobacter jejuni and E. coli 0157:H7 in cattle, and listeriosis in ruminants, 3) the pathogenesis of Helicobacters and Clostridia in mammals, 4) antimicrobial resistance in bacteria, 5) and the molecular fingerprinting of bacteria and fungi. He directs the laboratory aspects of the New York State Egg Quality Assurance program (NYSEQAP), and investigates the epidemiology of salmonella infections from the Northeastern USA from cases that are submitted to the NYS Diagnostic lab. He also directs the New York Veterinary Sentinel Site (sponsored by the USDA-FDA-CDC) that monitors the antimicrobial resistance in Salmonella and Campylobacter from animals and poultry. E-mail address: plm2@cornell.edu
Lorin D. Warnick, Associate Professor, Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine
He is a veterinary epidemiologist and clinician in the Ambulatory and Production Medicine Clinic. The Ambulatory Clinic provides primary care and herd health services to farms near Ithaca and clinical instruction to veterinary students. His research interests are the epidemiology of dairy cattle diseases with an emphasis on
pre-harvest food safety. Current USDA-funded research projects include a studyof antimicrobial resistance of Salmonella Typhimurium in New York dairy herds (1998-2000) and a multi-state project to investigate risk factors for occurrence and drug resistance of Salmonella and Campylobacter infections in
dairy cattle (1999-2002). E-mail address: ldw3@cornell.edu.
Martin Wiedmann, Professor, Department of Food Science
His research interests include the pathogenesis, evolution, epidemology and diagnosis of bacterial food-borne diseases. His current work concentrates on the molecular characterization of Listeria monocytogenes, factors important for transmission along the food chain and pathogenesis of animal and human food-borne disease. His e-mail address is mw16@cornell.edu
Antje Baeumner, Associate Professor, Biological and Environmental Engineering
In current research electrochemical and optical biosensors are being developed, e.g. for the direct extra-laboratory detection of pathogenic microorganisms, pesticides and natural toxins in the environment in food and medical diagnostics. Molecular biological techniques are also involved in the development of these biosensors for the detection of pathogens such as Crytosporidium parvum. Microfabrication techniques are currently used for the preparation of signal transducers, and microfluidic devices (µTAS) micro Total Analytical Systems) will play a major role in the development of novel biosensing systems that will not only serve as easy-to-use sensing devices but will also allow their incorporation into more complex automated systems. Email address: ajb23@cornell.edu
Ruihai Liu, Associate Professor, Department of Food Science
Current research program focuses on food chemistry (lipid chemistry), food toxiocology, and diet and cancer. Specific interests include: Role of phytochemicals, anticancer agents and other bio-active componenets from natural products in the prevention of cancer and other chronic disease of aging; Role of free radicals in DNA damage, aging and carcinogensis; Functional foods for disease prevention and health promotion; Identification and analyses of food contaminants and environmental pollutants. Dr. Liu’s e-mail address is rl23@cornell.edu
Lois Levitan, Program Leader, Environmental Risk Analysis Program, Communication
The Environmental Risk Analysis Program (ERAP) endeavors to facilitate and improve understanding, evaluation and communication about environmental and health risks. ERAP is developing resources and training programs to help citizens and policy-makers interpret scientific information risk issues, and then make informed decisions which appripriately balance levels of concern and action with levels of risk and impact. Started in summer 1998, ERAP is an integrated applied research and outreach program of the Center for the Environment at Cornell University. Email Address:lcl3@cornell.edu
Joe M. Regenstein, Professor, Department of Food Science
Food safety-related research projects focus on Scombrotoxin formation in mackerel, herring and bluefish. This information is meant to provide information to the fishing industry for appropriate HACCP plans. Efforts in collaboration with the Veterinary Diagnostic laboratory at Cornell focus on the development of methods to avoiding meat contamination with pathogens in the live animal so that post-slaughter treatment is not necessary. I also work with the kosher community to deal with the issues that the current post-slaughter treatments might have on kosher meat and poultry production. E-mail address: jmr9@cornell.edu
Lois Levitan, Program Leader, Environmental Risk Analysis Program, Communication
The Environmental Risk Analysis Program (ERAP) endeavors to facilitate and improve understanding, evaluation and communication about environmental and health risks. ERAP is developing resources and training programs to help citizens and policy-makers interpret scientific information risk issues, and then make informed decisions which appropriately balance levels of concern and action with levels of risk and impact. Started in summer 1998, ERAP is an integrated applied research and outreach program of the Center for the Environment at Cornell University. Email Address:lcl3@cornell.edu
Leonard W. Lion, Professor and Director of the Environmental Engineering Laboratory, School of Civil and Environmental Engineering
Aquatic chemistry. Biogeochemical fate of contaminants in natural systems. Sorption and transport of contaminants (trace metals, volatile organic chemicals, and polynuclear aromatic hydrocarbons) in groundwater and estuaries. Influence of adherent bacteria (biofilms) on the solid-solution phase distribution of toxic transition metals. Dr. Lion’s e-mail address is lwl3@cornell.edu
Suzanne M. Snedeker, Visiting Fellow, Department of Food Science.
Critically evaluates the relationships between environmental chemicals and chronic diseases (including cancer, diabetes, and obesity). Chemicals of interest include persistent organic pollutants, pesticides, heavy metals, and endocrine disrupting chemicals. Develops critiques of the scientific literature on exposures, risks, and environmental fate of environmental chemicals for scientific audiences and health professionals. Translates complex scientific information on the health risks of chemicals found in the home and workplace into educational programming for variety of lay audiences for decision making and disease prevention. Dr. Snedeker’s email address is: sms31@cornell.edu
David B. Wilson, Professor of Biochemistry, Molecular and Cellular Biology
Bioremediation of heavy metal contaminated soil and water. E-mail address: dbw3@cornell.edu.
Food Safety Engineering and Processing
Carmen I. Moraru, Assistant Professor, Department of Food Science, Ithaca.
Syed S.H. Rizvi, Professor, Department of Food Science, Ithaca.A significant part of Professor Moraru’s research program is represented by applied and fundamental aspects of Food Safety Engineering, such as the development of novel processing methods for food pathogen inactivation (i.e. Pulsed Light treatment, CO2 aided membrane separation for microbial removal) and modeling of non-linear microbial inactivation kinetics. The broader goal is to combine various processing techniques and hurdles in complex processes capable of delivering safe foods with un-altered quality and nutritional value. Contact: cim24@cornell.edu
Professor Rizvi’s research focuses on experimental and theoretical aspects of food processing, delivery systems, and physical and engineering properties of biomaterials. Examples of current research topics include: food safety during added-value processing including modeling of kinetics of food born pathogens during thermal processing; commercial sterilization of foods using supercritical fluids; design of novel delivery systems for bacterial control; ensuring safety of thermal processed low-lactose, low-whey protein milk for extended shelf life. Contact: ssr3@cornell.edu
Ashim K. Datta , Professor, Department of Biological and Environmental Engineering, Ithaca.
Professor Datta’s research areas are in heat and mass transfer and related phenomena in food processing and in biomedical processes. Examples of food application areas in which he is very active include modeling of food safety, microwave heating, computer-aided engineering of food processes. Contact: akd1@cornell.edu
Olga Padilla-Zakour, Associate Professor, Food Science and Technology Department, Geneva.
The main goal of Professor Padilla-Zakour’s research activity is to ensure the safety of new food products. Typical techniques explored include acidification, pasteurization, UV irradiation, reduced water activity, chemical preservatives, and refrigeration. Her group studies the combined effect of these techniques to produce both, shelf-stable products and minimally processed foods. Contact: oip1@cornell.edu

