A new proposed validation method for low energy electron beam processing of dry spices. (October 2022)

• Record Type: Journal Article
• Authors: Murdoch, M.; Waser, A.; Morantes, G.; Dubovcova, B.; Akepsimaidis, G.; Currie, A.; Pillai, S.D.
• Is Part Of: Innovative food science & emerging technologies. Volume 81(2022)
• Publication Date: 2022-10
• Subjects: Low-energy electron beam -- LEEB -- Pathogen reduction -- Process validation -- Spice irradiation -- Food safety; Food -- Biotechnology -- Periodicals; Food industry and trade -- Technological innovations -- Periodicals; Aliments -- Biotechnologie -- Périodiques; Food -- Biotechnology; Periodicals; Electronic journals; 664.005
• DOI: 10.1016/j.ifset.2022.103141
• Languages: English
• ISSNs: 1466-8564

Abstract

Abstract: Food processing with ionizing technologies must comply with validation requirements laid out by national regulatory bodies and international standards. This paper describes a new proposed method to meet the requirements for microbial decontamination treatment of spices and herbs with low-energy electron beam (LEEB) processing. The demonstration of robust process and product qualification protocols is necessary for regulatory approval and adoption of LEEB process in the food industry. The bulk flow of loose seeds was measured and optimized for treatment, a dosimetry system implemented, and methods for assessing Salmonella spp. reduction were developed combining high- and low-energy electron beam microbial inactivation data. Data is presented indicating 5-log reduction of Salmonella enterica serovar Rissen on black peppercorns, demonstrating the effectiveness of the LEEB treatment. The validation method described in this paper is applicable to most loose, dry, whole spices and herbs. Highlights: New proposed process and product validation methods for LEEB processes with bulk product flow. Efficacy of new proposed methods confirmed for Salmonella spp. on black peppercorns. Characterization of particle flow in free fall spices across a LEEB treatment zone. Validated proposed novel method for characterization and quantification of dose delivered to product. Demonstrated compliance of the developed LEEB process with applicable US FDA Regulations.