Dr. Gregory Ziegler

Professor

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Biography

Gregory R. Ziegler, Ph.D., is a Distinguished Professor Emeritus in the Department of Food Science at Pennsylvania State University. With a Ph.D. in Food Engineering from Cornell University, his focus is primarily on food process engineering and food materials science. His research involves examining the physical properties and processing of polymeric particulate foods, with a particular emphasis on chocolate confectionery products. Dr. Ziegler has contributed extensively to the Food Bioprocessing support and the Food Characterization Laboratory through the William Lois Dietrich Endowment. Additionally, he is a faculty affiliate of the Intercollege Graduate Program in Materials at the Materials Research Institute. He is known for his expertise in developing innovative approaches to improve food quality through advanced statistical tools and manufacturing practices.

Research Interests

Courses

Introductory Food Science Practicum Managing Food Quality

Requirements for Pennsylvania State University

Doctorate Program
Requirements
GPA Requirement
Required:3
TOEFL
Writing
Required:24
Speaking
Required:23
Total
Required:100
IELTS
Writing
Required:7
Speaking
Required:7
Overall
Required:7
GRE General
Prerequisites
Master's degree in related field for PhD Baccalaureate degree from accredited institution
Application Checklist
  • Three letters of recommendation
  • Statement of Purpose
  • Writing Sample
  • Official Transcripts
  • Resume/CV
Specialization Notes

GRE scores are highly recommended but not strictly required for Applied Linguistics.