George F. Stewart

George F. Stewart (February 22, 1908-March 18, 1982) was an American food scientist who was involved in processing, preservation, chemistry, and microbiology of poultry and egg-based food products. He also became the first president of the International Union of Food Science and Technology (IUFoST) after it was formed at the 1970 conference in Washington, DC from the International Congress of Food Science and Technology.

Early life and college

Born in Mesa, Arizona, Stewart developed an interest in the southwestern U.S. and the environment that never left him. He would earn a B.S. in Chemistry from the University of Chicago in 1930 and a Ph.D. in Dairy chemistry from Cornell University in 1933.

Industrial career

Stewart worked as a chemist for Ocoma Foods in Omaha, Nebraska for five years. This gave him early experience in the dynamics of the food industry. The experience Stewart gained in the food industry would prove valuable when he returned to academia.

Iowa State University and World War II

In 1939, Stewart accepted a position with Iowa State University (known then as Iowa State College of Agricultural and Mechanical Arts) where he created the Poultry Products Research Laboratory. He remained at Iowa State until 1951 where Stewart also established the food technology [http://www.fshn.hs.iastate.edu/ugrad/foodsci.php curriculum] which has continually been updated since then. He also served as associate director of the Experiment Station from 1947 to 1951.

During World War II, Stewart served as an expert consultant in food preservation for the United States Department of War and the United States Department of the Navy. This included leading the effort to resolve issues by the armed forces and their allies on using dehydrated eggs.

University of California involvement

Ih 1951, Stewart joined the University of California, Davis faculty as chair of the Department of [http://aviansciences.ucdavis.edu/ Avian Sciences] (then known as Poultry Husbandry). He would lead the transition of the department between the University of California, Berkeley and Davis between 1951 and 1958 and expand the department in faculty and building size. Taking a sabbatical year in Australia as a Fulbright scholar in 1958, Stewart played a key role in modernizing Australia's poultry industry.

In 1959, Stewart returned to UC-Davis as chair of the [http://www-foodsci.ucdavis.edu/ Department of Food Science and Technology] (FST) where he would serve until 1964. At the university's request in 1964, Stewart was named director of the food protection and toxicology center and became chair of the newly formed [http://www.envtox.ucdavis.edu/ Department of Environmental Toxicology] , a position he would hold until 1970.

Stewart returned to the FST department in 1970 as a teacher and researcher, including serving as coordinator of the Food packaging program from 1969 to 1974. He would retire from UC Davis in 1975.

Research focus

Stewart's research was on the processing and preservation of poultry meat and eggs. This included being the first person to demonstrate the browning reaction in dried eggs with a reaction between glucose and protein, the first to deal with time-temperature studies in egg pasteurization and poultry freezing, the first to determine antibiotic resistance in pathogenic bacteria in refrigerated poultry, and the first to determine the time between egg laying and egg shell composition to maintain internal product quality. His research would lead to over seventy-five published papers, the co-founding of "Advances in Food Research" in 1958, the co-founding of the "Journal of Food Nutrition Education" and "Monographs in Food Science and Technology."

Professional involvement

Stewart was involved in many organizations, including IUFoST and the Institute of Food Technologists (IFT), serving as a charter member in 1939 and as IFT President in 1967-68. Among his service at IFT was being editor-in-chief of "Food Technology" and the "Journal of Food Science" (JFS) from January 1961 to July 1966. During his role as editor, Stewart would transfer much of the basic research from "Food Technology" to the "Journal of Food Science," paving the way for JFS to be an entirely research scientific journal by 1971. He was also involved in the Poultry Science Association on its board of directors and was also named a fellow. Stewart was involved in other professional organizations, including the American Chemical Society, the American Dairy Science Association, the American Institute of Nutrition, the American Association for the Advancement of Science, and the International Union of Nutritional Sciences.

Death and legacy

Stewart died on March 18, 1982 in Davis, California. He was survived by his wife, a son, two daughters, and seven grandchildren. The [http://www.ift.org/divisions/international/paper_competition/ George F. Stewart International Research Paper Competition] was established by the [http://www.ift.org/divisions/international/ IFT International Division] in 1989 to award to the top five non-American born winners of the competition in food science and technology. The award winners are presented with scholarships at the Phi Tau Sigma breakfast presented on the last full day of IFT's annual meeting and food expo during the summer.

Awards and Honors

*Institute of Food Technologists (IFT) Fellow - 1971
*IFT Nicholas Appert Award - 1974
*IFT International Award - 1966
*Massachusetts Institute of Technology Underwood Lecturer - 1967.

elected work

*Vaughn, R.H., H. Ng, G.F. Stewart, C.W. Nagel, and K.L. Simpson. (1960). "Antibiotics in Poultry Meat Preservation: Development "in Vitro" of Bacterial Resistance to Chlortetracycline. "Applied and Environmental Microbiology." 8(1):27-30.

References

*Brant, A.W., F. Ogasawara, and W. Sadler. (1985). "George F. Stewart, Food Science & Technology: Davis." "1985, University of California: In Memoriam." Berkeley, CA: University of California Academic Senate. pp. 397-400.

External links

* [http://members.ift.org/IFT/Awards/AchievmentAwards/AwardWinners/pastawardwinners.htm List of IFT past award winners]
* [http://www.ift.org/cms/?pid=1000288 List of IFT Fellows]
* [http://foodscience.ucdavis.edu/fst/centennial.html History of FST at UC-Davis]