• Professor Emeritus of Food Science;
  • Director, Center for Plant and Mushroom Foods for Health

Areas of Expertise

  • Nutritional and medicinal properties of mushrooms
  • Antioxidants: selenium, ergothioneine and glutathione
  • Vitamin D enrichment of mushrooms
  • Regenerative agriculture effects on nutrient density of food
  • Associate Professor Emeritus of Food Science
  • Division of Science, Berks College
  • Department of Food Science, University Park
  • Associate Research Professor Emeritus of Food Science

Areas of Expertise

  • Dairy Food Processing & Quality
  • Dairy Food Safety
  • Sensory Analysis of Dairy Products
  • Artisanal Cheese
  • Value-Added Dairy Products
  • Professor Emeritus of Food Science; Professor of Science, Technology and Society
  • Professor Emeritus of Food Science and Extension Specialist

Areas of Expertise

  • Tracking Listeria monocytogenes in produce production and processing environments
  • Food safety validation of mushroom growing, packing, and processing.
  • L. monocytogenes in tree fruit packinghouses.
  • Farm food safety (Good Agricultural Practices) training
  • Hazards Analysis and Risk Based Preventive Controls training
  • Technical assistance to home and commercial food processors
  • Food Safety Modernization Act (FSMA)
  • Professor Emeritus of Food Science
  • Senior Fellow, Rock Ethics Institute
  • Distinguished Professor Emeritus of Food Science

Areas of Expertise

  • Food process engineering
  • Food materials science
  • Biopolymers
  • Chocolate and confectionery