Dr. Robert J. Braddock

Contact Information

Citrus Research and Education Center
Lake Alfred, Florida
Food Science & Human Nutrition
Phone: 863.956.1151 ext. 1249
Email: rjbk@ufl.edu
Fax: 863.956.4631

Education

BS University of FL, 1962
MS University of FL, 1967
PhD Michigan State U, 1970

Specialization

Citrus By-Products and Processing Technology

Past Positions

1970-present. Professor of Food Science, responsible for research activities concerning processing technology of citrus products and by-products, seeking to originate new processes, identify value-added attributes and improve product quality or process efficiency. Duties include training Graduate students and facilitate technology transfer with the citrus processing industry.

Research

Accomplishments include development of an enzyme process to reduce viscosity and increase soluble solids recovery in juice concentration and pulp washing processes; development of mass balance and recovery data for citrus by-product operations including essential oils, bioflavonoids, and limonene; applications of membrane and alternate concentration processes for recovery and quality upgrade of juice and by-products; bioconversion of terpenes and citrus aroma chemicals for flavor applications; applications of high pressure to citrus processing; VOC method development and citrus oil halogen compounds related to oil recovery methods

Refereed Publications

Braddock, R.J. 1999. Handbook of Citrus By-Products and Processing Technology. John Wiley & Sons, Inc. New York, NY. 

Gentry, T. S., Braddock, R. J., Miller, W. M., Sims, C. A., Gregory, J. F. 2001. Volatile organic compounds from citrus feed mill emissions. J. Food Proc. Eng. 24: 1 -15.

Braddock, R. J., Bryan, C. R., Burns, J. K. 2001. Capillary electrophoresis analysis of orange juice pectinesterases. J. Agric. Food Chem.. 49: 846 -850.

Braddock, R. J., Bryan, C. R. 2001. Extraction parameters and capillary electrophoresis analysis of limonin glucoside and phlorin in citrus byproducts. J. Agric. Food Chem.. 49: 5982 -5988.
Weiss, E. R., Pika, J., Braddock, R. J. 2003. Isolation and identification of terpene chlorohydrins found in cold-pressed orange oil. J. Agr. Food Chem.. 51: 2277 -2282.
Weiss, E. R., Braddock, R. J., Goodrich, R. M., Gregory III, J. F., Pika, J. 2003. Occurrence and preclusion of terpene chlorohydrins in citrus essential oils. J. Food Sci.. 68: 2146 -2149.
Braddock, R. J., Goodrich, R. M. 2003. Processing technologies to enhance fresh flavor of citrus juice. In: Freshness and Shelf Life of Foods. Eds. K. R. Cadwallader and H. Weenen.. ACS Symposium Series 836. ACS. Washington, DC. 292-301.

Braddock, Robert J., Goodrich, Renée M., and Bryan, Charles R. 2004. Variables affecting solid-phase microextraction headspace analysis of orange juice volatiles. Chapter 30. In "Handbook of Flavor Characterization". Ed. Kathryn D. Deibler and Jeannine Delwiche. Marcel Dekker, Inc. New York, NY. pp 423-436.

Braddock, Robert. J. 2004. Importance of by-products to citrus juice processing. Fruit Processing. 14(5): 310-313.

Kimball, Dan, Parish, Mickey E., and Braddock, Robert J. 2004. Oranges and tangerines. Chapter 25. In "Processing Fruits. Science and Technology". 2nd Edition. Ed. Diane M. Barrett, Laszlo Somogyi, Hosahalli Ramaswamy. CRC Press, Inc. Boca Raton, FL. pp. 617-638.

Kimball, Dan, Braddock, Robert J., and Parish, Mickey E. 2004. Grapefruits, lemons and limes. Chapter 26. In "Processing Fruits. Science and Technology". 2nd Edition. Ed. Diane M. Barrett, Laszlo Somogyi, Hosahalli Ramaswamy. CRC Press, Inc. Boca Raton, FL. pp. 639-655.

Braddock, Robert J. 2004. The orange fruit and its products. Chapter 1.; Fruit Processing. Chapter 2. In "The Orange Book" Ed. Ulla Ringblom. Tetra Pak Processing Systems AB. Lund, Sweden. 208 pp.

Braddock, Robert J. and Goodrich, Renée M. 2005. Reduction of limonene chlorohydrins in commercial citrus oils. J. Food Sci. 70: C104-107.

Matella, Norman J., Braddock, Robert. J., Gregory, III, Jesse F. and Goodrich, Renée M. 2005. Capillary electrophoresis and high-performance liquid chromatography determination of polyglutamyl 5-methyltetrahydrofolate forms in citrus products. J. Agric. Food Chem. 53: 2268-2274.

Additional Information

Fellow of the Institute of Food Technologists

Member of Amercian Chemical Society