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Biography

Hanieh S Musavian has completed her Master’s degree in Biotechnology from Technical University of Denmark. Currently she is working as an R&D Project Manager and Specialist at FORCE Technology (an GTS Institute) which is a independent not-for-profit organisation located in Denmark.

Abstract

Steam-ultrasound (SonoSteam®) decontamination is a minimally process that uses the combined effect from steam at 90°C and ultrasound at 25-35 kHz to reduce microbes on food and non-food surfaces. The technology applies patented nozzles that produce the combined effect from steam-ultrasound simultaneously. A specially constructed treatment chamber that enhances the combined effect from the nozzles was built in an industrial scale system for poultry disinfection. Since late 2014, this system has been installed and optimized at five different slaughter lines in three different European broiler slaughterhouses with capacities of 11.000-13.500 birds/hour. Ongoing weekly trials with 10-20 Campylobacter positive birds were sampled. Sampling technique includes 10 g of paired skin samples from neck and breast area. The system is monitored using temperature probes inside the chamber. A silicone dummy molded into a chicken carcass with temperature probes sitting around the surfaces was also applied to monitor system stability. Results from temperature profiles showed process stability inside chamber as well stability in steam flow around chickens entering and exiting process chamber. Microbial results showed approximately 0.7-1.2 log on average on birds with highest levels (>1000 CFU). The data suggest a correlation between initial levels and the achieved reductions, whereas the lowest reductions are found on birds infected with levels around 1.5 log. This study is a summary of the progress on the industrial application of SonoSteam® disinfection of broilers.

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