Distinguished Professor, Rice Processing
Director Experiment Station
Research Emphasis: Rice Processing Program
The Rice Processing Program (RPP) is a multidisciplinary, industry-interactive program serving the U.S. and global rice industry. Since its inception in 1994, the RPP has garnered broad-based financial, equipment, and in-kind support from national/ international companies and producer groups. RPP faculty conduct both basic and applied research, encompassing studies in pre-harvest property characterization, drying, storage, milling, and end-use quality assessment, with many projects conducted at field and company locations. The hallmark of the RPP is the Industry Alliance Meeting, held annually on the University of Arkansas campus to report program findings and provide a venue for open discussion of rice industry issues. The RPP Advisory Board, comprising members of sponsoring corporations, meets at least annually to direct Program activities and provide insight to RPP faculty on industry trends and challenges.
The University of Arkansas Rice Processing Program will be a premier source of basic and applied research pertaining to post-harvest processing of rice. This vision is to be realized through continued support and involvement of current U.S. and international corporate sponsors of the Program, but also through collaboration with international rice research centers.
Primary Long-range Goals
Long-term goals are to develop improved rice drying systems that minimize milling and functional quality deterioration, maximize drying capacity, and maximize drying energy efficiency. An approach involving mathematical model development, laboratory testing, and field validation will be used.
Ph.D.- University of Nebraska (Engineering)
M.S.- Purdue University (Agricultural Engineering)
B.S.- University of Arkansas (Agricultural Engineering)
Lawrence, J., G.G. Atungulu, and T. J. Siebenmorgen. 2015. Modeling in-bin rice drying using natural air and controlled air drying strategies. Trans. of the ASABE 58(4):1103-1111.
Grigg, B.C. and T.J. Siebenmorgen. 2015. Impacts of kernel thickness and associated physical properties on milling yields of long-grain rice. Applied Engineering in Agriculture 31(3):505-511.
Counce, P.A., T.J. Siebenmorgen, and A.A. Ambardekar. 2015. Rice reproductive development stage thermal time and calendar day intervals for six US rice cultivars in the Grand Prairie, Arkansas, over 4 years. Annals of Applied Biology ISSN 0003-4746 (2015):1-15.
Patindol, J.A., T.J. Siebenmorgen, and Y.J. Wang. 2015. Impact of environmental factors on rice starch structure; A review. Starch 67:42-54.
Basutkar, N., T.J. Siebenmorgen, Y.-J. Wang, and J.A. Patindol. 2015. Functional properties of co-mingled rice cultivar lots. Cereal Chemistry 92(1):114-119.
Basutkar, N., T.J. Siebenmorgen, and A. Mauromoustakos. 2014. Milling properties of co-mingled rice-cultivar lots. Trans. of the ASABE 57(6):1717-1728.
Billiris, M.A., T.J. Siebenmorgen, and G.L. Baltz. 2014. Energy use and efficiency of rice-drying systems. I.On-farm cross-flow dryer measurements. Applied Engineeringin Agriculture 30(2): 205-215.
Billiris, M.A. and T.J. Siebenmorgen. 2014. Energy use and efficiency of rice-drying systems. II. Commercial cross-flow dryer measurements. Applied Engineering in Agriculture 30(2): 217-226.
Patindol, J.A., T.J. Siebenmorgen, Y.-J. Wang, S.B. Lanning, and P.A. Counce. 2014. Impact of elevated nighttime air temperatures during kernel development on starch properties of field-grown rice.Cereal Chemistry 91(4):350-357.
Patindol, J.A., T.J. Siebenmorgen, and A.G.Duffour. 2013. Description and processing performance of a pilot-scale parboiling unit. Applied Engineering in Agriculture 29(6): 943-951.
Ondier, G.O., T.J. Siebenmorgen, and A. Mauromoustakos. 2013. Physicochemical properties of rice dried in a single pass using high temperatures. Cereal Chemistry 90(5):502-506.
Lyman, N.B., K.S.V. Jagadish, L.L. Nalley, B.L. Dixon, and T.J. Siebenmorgen. 2013. Neglecting rice milling yield and quality underestimates losses from high-temperature stress. Public Library of Science PLoS One 8(8):1-9.
Grigg, B.C. and T.J. Siebenmorgen. 2013. Impacts of thickness grading on milling yields of long-grain rice. Applied Engineering in Agriculture 29(4):557-564.
Lanning, S.B. and T.J. Siebenmorgen. 2013. Effects of pre-harvest nighttime air temperatures on whiteness of head rice. Cereal Chem. 90(3):218–222.
Ondier, G.O. and T.J. Siebenmorgen. 2012. Drying characteristics and milling quality of rough rice dried in a single-pass incorporating glass transition principles. Drying Technology 30:1821- 1830.
T.J. Siebenmorgen, T.G. Williams, W.J. Orts, and G.M. Glenn. 2012. Use of microscopy to assess bran removal patterns in milled rice. Journal of Agricultural and
Food Chemistry 2012(60):6960−6965. Billiris, A., T.J. Siebenmorgen, J.F. Meullenet, and A. Mauromoustakos. 2012. Rice degree of milling effects on hydration, texture, sensory and energy characteristics. Part 1. Cooking using excess water. Journal of Food Engineering 113(4):559-568.
Billiris, A., T.J. Siebenmorgen, and Y.J. Wang. 2012. Rice degree of milling effects on hydration, texture, sensory and energy characteristics. Part 2. Cooking using fixed, water-to-rice ratios. Journal of Food Engineering 113(4):589-597.
Lanning, S.B., T.J. Siebenmorgen, A.A. Ambardekar, P.A. Counce , and R.J. Bryant 2012. Effects of nighttime air temperature during kernel development of field-grown rice on physicochemical and functional properties. Cereal Chemistry 89(3):168-175.
Ambardekar, A.A. and T.J. Siebenmorgen. 2012. Effects of postharvest elevated-temperature exposure on rice quality and functionality. Cereal Chemistry 89(2):109-116.
Ondier, G.O., T.J. Siebenmorgen, A. Mauromoustakos. 2012. Equilibrium moisture contents of pureline, hybrid, and parboiled rice kernel fractions. Applied Engineering in Agriculture 28(2):237-247.
Arthur, F.H., G.O. Ondier, and T.J. Siebenmorgen. 2012. Impact of Rhyzopertha dominica (F.) on quality parameters of milled rice. Jour. of Stored Products Research 48 (2012):137-142.
Ambardekar, A.A., T.J. Siebenmorgen, and T. Periera. 2011. Colorimetric method for rapidly predicting rice amylose content. Cereal Chemistry 88(6):560-563.
Ondier, G.O., T.J. Siebenmorgen, and A. Mauromoustakos. 2011. Equilibrium moisture contents of pureline, hybrid, and parboiled rice. Trans. of the ASABE 54(3):1007-1013.
Ondier, G.O., T.J. Siebenmorgen, and A.C. Wiedower. 2011. Research-scale drying of rough rice using silica gel. Applied Engineering in Agriculture 27(1):99-106.
Distinguished Professor, University of Arkansas, Department of Food Science
University Professor, University of Arkansas, Department of Food Science
Director, University of Arkansas Rice Processing Program
Professor, University of Arkansas, Department of Food Science
Interim Department Head, University of Arkansas, Department of Food Science
Professor, University of Arkansas, Department of Biological & Agricultural Engineering
Interim Assistant Director, University of Arkansas, Agricultural Experiment Station
Associate Professor, University of Arkansas, Department of Biological & Agricultural Engineering
Assistant Professor, University of Arkansas, Department of Biological & Agricultural Engineering
Phil Williams Applied Research Award, American Assoc. of Cereal Chemists International
Fellow, American Association of Cereal Chemists International
Riceland Foods Inc. Friend of the Farmer
Distinguished Food Engineer Award, American Society of Agricultural and Biological Engineering/Food Processors Supply Association
John W. White Outstanding Research Award (Functional Foods Team)
Fellow, American Society of Agricultural and Biological Engineers
Inductee, Arkansas Academy of Biological and Agricultural Engineering
Spitze Land Grant University Faculty Award for Excellence
ASAE Transactions Superior Paper Award
John W. White Outstanding Research Team Award (Rice Processing Program)