Affiliated Faculty

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University of Maryland Affiliated Faculty

Chris Walsh, Ph.D.
Professor/Undergraduate Program Coordinator, Plant Science and Landscape Architecture
College of Agriculture and Natural Resources

Dr. Y. Martin Lo, Ph.D.
Associate Professor, Nutrition and Food Science
College of Agriculture and Natural Resources

Dr. Amy Sapkota, Ph.D.
Assistant Professor, Maryland Institute for Applied Environmental Health
School of Public Health

Biographical Data:

University of Maryland Affiliated Faculty

Chris Walsh, Ph.D.
Professor/Undergraduate Program Coordinator, Plant Science and Landscape Architecture
College of Agriculture and Natural Resources

Dr. Walsh is a Professor and the Undergraduate Program Coordinator for the Department of Plant Science and Landscape Architecture. He received a both a Ph.D. and MS in Pomology from Cornell University and a B.A. in Chemistry from Middlebury College. Dr. Walsh has worked in the production and handling of fruit crops for more than three decades with his research focusing on production and postharvest physiology. The goal of his research is to identify and test metrics for use in food assurance programs through the study of the effects of typical production inputs on the epiphytic bacteria present on the surface of fresh fruits.

Dr. Walsh also coordinates with the JIFSAN international training courses in Good Agricultural Practices (GAPs) and has organized over 15 "Train-the-Trainers" programs. He also trains and assists local fruit and vegetable growers in the mid-Atlantic Region in developing GAPs programs.

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Dr. Y. Martin Lo, Ph.D.
Associate Professor, Nutrition and Food Science
College of Agriculture and Natural Resources

Dr. Y. Martin Lo is an Associate Professor of Food Bioprocess Engineering and Extension Specialist of Food Processing and Safety, is the Director of Graduate Program in Food Science in the Department of Nutrition and Food Science at the University of Maryland. Serving as the Editor-in-Chief of the Journal of Food Processing and Preservation, Dr. Lo is recognized by his extensive experiences in the development of novel food processing and preservation technologies. He has established active research programs in value-added applications of food and agriculture byproducts as well as whole-cell biosensors for food safety monitoring.

Dr. Lo served as the President of the MD/DC Dairy Technology Society, Chinese American Food Society, and Gamma Sigma Delta, the honor society of agriculture. Dr. Lo also served as the Chair of Food Engineering Division in the Institute of Food Technologists (IFT) and was chosen as the 2007-9 Distinguished Lecturer by IFT. Dr. Lo is known for his efforts in building research-based extension programs. He serves as the Maryland Food Safety HACCP Coordinator for USDA FSIS and is a trainer for international workshops on Good Agriculture Practices (GAPs). Dr. Lo is also instrumental in the development of the Commercially Sterile Packaged Foods (CSPF) international training program for the Joint Institute of Food Safety and Applied Nutrition (JIFSAN).

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Dr. Amy Sapkota, Ph.D.
Assistant Professor, Maryland Institute for Applied Environmental Health
School of Public Health

Dr. Amy R. Sapkota is an assistant professor in the University of Maryland College Park, School of Public Health (SPH). Within the SPH she has a joint appointment in the Maryland Institute for Applied Environmental Health and the Department of Epidemiology and Biostatistics. She received a PhD in Environmental Health Sciences from the Johns Hopkins Bloomberg School of Public Health, an MPH in Environmental Health Sciences from the Yale School of Public Health and a BS in Biology from the University of Maryland, College Park. Dr. Sapkota also holds a Certificate in Risk Sciences and Public Policy, and completed post-doctoral fellowships at the Johns Hopkins Bloomberg School of Public Health and the Environmental Microbial Genomics Group within Le Centre National de la Recherche Scientifique in Lyon, France.

Dr. Sapkota's research interests lie in the areas of microbial environmental exposure assessment and environmental epidemiology, with a focus on evaluating the complex relationships between the environment, food and water production systems, and human infectious diseases. Current research projects include: 1) evaluating changes in bacterial antibiotic resistance as large-scale poultry farms transition to organic practices; 2) investigating the prevalence of methicillin-resistant Staphylococcus aureus (MRSA) in tertiary-treated wastewater used for spray irrigation; and 3) utilizing metagenomic methods to understand total bacterial biodiversity in cigarettes, smokeless tobacco products and environmental tobacco smoke.

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