Processed Foods Research Site Logo
ARS Home About Us Helptop nav spacerContact Us En Espanoltop nav spacer
Printable VersionPrintable Version     E-mail this pageE-mail this page
Agricultural Research Service United States Department of Agriculture
Search
  Advanced Search
 
Programs and Projects
Subjects of Investigation
 

Research Project: NEW TECHNOLOGIES TO PROCESS VALUE-ADDED, HEALTHY FOODS FROM FRUITS AND VEGETABLES

Location: Processed Foods Research

Title: Feasibility of Simultaneous Rough Rice Drying and Disinfestations by Infrared Radiation Heating and Rice Milling Quality

Authors
item Pan, Zhongli
item Khir, Ragab - UC DAVIS, DAVIS, CA
item Godfrey, Larry - UC DAVIS, DAVIS, CA
item Lewis, Richard - UC DAVIS, DAVIS, CA
item Thompson, James - UC DAVIS, DAVIS, CA
item Salim, Adel - SUEZ CANAL UNIV., EGYPT

Submitted to: Journal of Food Engineering
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: June 2, 2007
Publication Date: February 1, 2008
Citation: Pan, Z., Khir, R., Godfrey, L., Lewis, R., Thompson, J.F., Salim, A. 2008. Feasibility of Simultaneous Rough Rice Drying and Disinfestations by Infrared Radiation Heating and Rice Milling Quality. Journal of Food Engineering. 84:469-479.

Interpretive Summary: This research demonstrated that the simultaneous rice drying and disinfestations can be achieved by using infrared heating.

Technical Abstract: The objective of this study was to investigate the drying characteristics, milling quality and effectiveness of disinfestation of rough rice under conditions of infrared (IR) radiation heating. Freshly harvested medium grain rice (M202) samples with low (20.6%) and high (25.0%) moisture contents (MCs) were used for this study. Single-layer rough rice samples [non-infested and infested with the adults and eggs of lesser grain borers (Rhizopertha dominica) and angoumois grain moths (Sitotroga cerealella)] were heated for various durations using a catalytic IR emitter. The effects of the tempering treatment, and natural and forced air cooling methods on moisture removal, milling quality and disinfestation were determined. A high heating rate and corresponding high moisture removal were achieved by using IR heating. After heating, tempering increased moisture removal during cooling and improved the milling quality of the rice samples. When 20.6% MC rice was heated by IR for 60 s, the results were a rice temperature of 61.2°C, 1.7% MC removal during the heating period, and an additional 1.4% MC removal after tempering and natural cooling. In addition, the rice had 1.9 percentage points higher head rice yield than a control sample dried with room air. The heating and tempering treatment also completely killed the tested insects. We concluded that simultaneous drying and disinfestation with high rice milling quality can be achieved by using a catalytic IR emitter to heat rough rice to 60°C, followed by tempering and slow cooling.

   

 
Project Team
McHugh, Tara
Pan, Zhongli - John
Milczarek, Rebecca
 
Publications
   Publications
 
Related National Programs
  Quality and Utilization of Agricultural Products (306)
 
 
Last Modified: 05/18/2013
ARS Home | USDA.gov | Site Map | Policies and Links 
FOIA | Accessibility Statement | Privacy Policy | Nondiscrimination Statement | Information Quality | USA.gov | White House