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 SUSTAINABLE PROCESSING TECHNOLOGIES TO PRODUCE HEALTHY, VALUE-ADDED FOODS FROM SPECIALTY CROPS AND THEIR CO-PRODUCTS

Location: Processed Foods Research

Title: Infrared Pasteurization of raw almonds

Authors
item Bingol, Gokhan
item Yang, Jihong -
item Brandl, Maria
item Pan, Zhongli
item Wang, Hua -
item McHugh, Tara

Submitted to: Journal of Food Engineering
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: December 31, 2010
Publication Date: January 7, 2011
Repository URL: http://dx.doi.org/10.1016/j.lwt.2010.12.034
Citation: Bingol, G., Yang, J., Brandl, M., Pan, Z., Wang, H., Mc Hugh, T.H. 2011. Infrared pasteurization of raw almonds. Journal of Food Engineering. 104 (2011), pp. 387-393 doi.org/10.1016/j.lwt.2010.12.034.

Interpretive Summary: Due to outbreaks of salmonellosis associated with whole raw almonds, an infrared (IR) pasteurization process was investigated for its efficacy in improving the safety of raw almonds. We observed that IR pasteurization followed by holding at warm temperatures provided up to 7.5 log reductions in Pediococcus population, which was used as a surrogate for Salmonella Enteriditis PT 30. The results of sensory panel showed that infrared pasteurization of raw almonds did not significantly change appearance, texture, flavor and overall quality of pasteurized almonds.

Technical Abstract: Due to outbreaks of salmonellosis associated with whole raw almonds, an infrared (IR) pasteurization process was investigated for its efficacy in improving the safety of raw almonds. After almonds were heated to 100, 110 and 120°C with IR, they were cooled at ambient temperature to a holding temperature of 70, 80 or 90°C before being transferred to a custom-designed holding device for different time periods up to 60 min. We observed that IR pasteurization followed by holding at warm temperatures provided up to 7.5 log reductions in Pediococcus population, which was used as a surrogate for Salmonella Enteriditis PT 30. The L*a*b* color values of whole almonds were not affected significantly (P>0.05). The sensory panel did not detect any significant difference (P>0.01) in appearance, texture, flavor and overall quality of pasteurized almonds compared with untreated samples.

   

 
Project Team
McHugh, Tara
Pan, Zhongli - John
Milczarek, Rebecca
 
Publications
   Publications
 
Related National Programs
  Quality and Utilization of Agricultural Products (306)
 
Related Projects
   DEVELOPMENT OF NEW PROCESSING TECHNOLOGIES FOR IMPROVING QUALITY AND SAFETY OF PROCESSED FRUITS, VEGETABLES, NUTS, RICE, & FISH BY-PRODUCTS
   DEMONSTRATION OF NEW, EFFICIENT INFRARED DRYING AND BLANCHING TECHNOLOGIES FOR FRUITS AND VEGETABLES
   DEVELOPMENT OF NEW PROCESSING METHODS FOR PRODUCING HEALTHY FRENCH FRIES
   INNOVATIVE ULTRAVIOLET-B PROCESSING TO ENHANCE HEALTH PROMOTING BIOACTIVE COMPONENTS IN SPECIALTY CROPS
   Development of Sustainable Tomato Peeling System by Using Infared Radiation Heating
   NON-FUNDED COOPERATIVE AGREEMENT BETWEEN ARS AND THE UNIVERSITY OF CALIFORNIA ADVANCED SOLAR TECHNOLOGIES INSTITUTE (UC SOLAR)
   Infrared heating for improved drying efficiency and quality of almonds and pistachios
   Sustainable Technologies for Table Olive/Olive Mill Wastewater Management
 
 
Last Modified: 06/18/2013
ARS Home | USDA.gov | Site Map | Policies and Links 
FOIA | Accessibility Statement | Privacy Policy | Nondiscrimination Statement | Information Quality | USA.gov | White House