Retired 2009
Bio
Dr. Thomas Whitaker, a native of Buncombe County, North Carolina, received a B. S. and M. S. (Agric. Engr.) from NC State University in 1962 and 1964 and a Ph.D. (Agric. Engr.) from Ohio State University in 1967. Dr. Whitaker in 1967 accepted a position with U.S. Dept. of Agriculture, Agricultural Research Service, Raleigh, NC, at NC State University in the Department of Biological and Agricultural Engineering where he has dedicated himself over the past 41 years to the improvement of food quality and food safety. Dr. Whitaker also holds the rank of Professor (USDA) in the Biological and Agricultural Engineering Department, NC State University.
Dr. Whitaker is internationally known for developing methods to evaluate the performance of mycotoxin sampling plans for agricultural commodities. Mycotoxins are carcinogenic compounds produced by fungi and found in a variety of foods. As a result, over 100 countries control maximum limits in foods and feed. His research studies include (1) the measurement of variability associated with sampling, sample preparation, and analysis, (2) determination of the aflatoxin distribution among sample test results, and (3) development of statistical models to predict the performance of mycotoxin sampling plans at detecting contaminated consignments in the food chain.
His research has assisted domestic and international producers, processors, manufacturers, exporters, importers, and regulatory agencies to develop mycotoxin control programs. Methods developed for mycotoxin have been extended to evaluate the performance of sampling plans used to detect genetically modified seed in grain, TCK spores in wheat, pesticide on seed, protein allergens in food products, and toxic compounds in fruit.
Dr. Whitaker has authored or co-authored 120 refereed publications and has made over 100 presentations at national and international scientific meetings and workshops. His research efforts have established Dr. Whitaker as a recognized expert and world leader in his field. Dr. Whitaker has received numerous awards. His research program has been recognized by the Food Engineering Division of ASABE as one of the six outstanding research achievements of the 20th Century; he received the Harvey W. Wiley Award from Association of Official Analytical Chemists (AOAC) for achievements in research; and he received the Group Honors Award for Excellence from the Secretary of the U.S. Department of Agriculture for expanding U.S. wheat exports to China, Brazil, Mexico, and India. He has been invited to participate as a member of several international committees and expert consultations. The methods developed to evaluate the performance of mycotoxin sampling plans have been accepted and used by USDA, FDA, the US peanut, almond, and grain industries, as well as internationally by FAO/WHO, IAEA, regulatory agencies, and food manufacturers in the various countries. Working in a team environment, his research provided vital information that helped establish worldwide standards for mycotoxin limits and sampling plans for peanuts and almonds traded in the export market.
Dr. Whitaker’s service to agriculture continued the family tradition. His father, John V. Whitaker, served many years in the NC Dept. of Agriculture and later as Secretary of the NC Milk Commission. His father-in-law, Ralph Greene, developed and supervised the BAE Research Shop from the late 1940s to 1973.
Education
Ph.D. Agricultural Engineering Ohio State University 1967
M.S. Agricultural Engineering NC State University 1964
B.S. Agricultural Engineering NC State University 1962
Area(s) of Expertise
methods to evaluate the performance of mycotoxin sampling plans for agricultural commodities. Methods include (1) the measurement of variability
associated with sampling, sample preparation, and analysis, (2) determination of the distribution among replicated sample test results, and (3) development of statistical models to predict the performance of mycotoxin sampling plans.
Publications
- Current sampling plans can introduce high variance in mycotoxin testing results as demonstrated by the online FAO Mycotoxin Sampling Tool , WORLD MYCOTOXIN JOURNAL (2023)
- Are sample size and sample preparation for mycotoxin quantitation in grain products getting trivialized? , FOOD CONTROL (2021)
- Improved Sample Selection and Preparation Methods for Sampling Plans Used to Facilitate Rapid and Reliable Estimation of Aflatoxin in Chicken Feed , TOXINS (2021)
- Measurements of High Oleic Purity in Peanut Lots Using Rapid, Single Kernel Near-Infrared Reflectance Spectroscopy , JOURNAL OF THE AMERICAN OIL CHEMISTS SOCIETY (2021)
- Review of good agricultural practices for smallholder maize farmers to minimise aflatoxin contamination , WORLD MYCOTOXIN JOURNAL (2021)
- Sampling plan designs for gluten estimation in oat flour by discrete and composite sampling , FOOD CONTROL (2021)
- Evaluation of sampling plans for measurement of gluten in oat groats , FOOD CONTROL (2020)
- Maize meal slurry mixing: an economical recipe for precise aflatoxin quantitation , WORLD MYCOTOXIN JOURNAL (2019)
- Revisiting the sampling, sample preparation, and analytical variability associated with testing wheat for deoxynivalenol , WORLD MYCOTOXIN JOURNAL (2019)
- A systematic approach to monitoring high preharvest aflatoxin levels in maize and peanuts in Africa and Asia , WORLD MYCOTOXIN JOURNAL (2018)