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September 06-08, 2018 | Edinburgh, Scotland
Food safety and Hygiene
International Conference on
Journal of Food Technology and Preservation | ISSN: 2591-796X | Volume 2
Potentially effective disinfection of hatching and table eggs with combined steam and ultrasound
treatment
Hanieh S Musavian
FORCE Technology, Denmark
Background: SonoSteam is a minimally decontamination
technology that uses the combined effect from steam at
90°C and ultrasound at 25-35 Hz. This system has been
designed to reduce levels of pathogenic bacteria on rawmeat
products such as poultry. On poultry, the system reached
approximately 1 log reduction based on previous factory
trials. This same technology is now being investigated on
table eggs for consumption as well as for decontamination
of hatching eggs.
About this study: Combined steam ultrasound treatment
was investigated on artificially contaminated table and
hatching eggs with levels around 5 Log of Salmonella and
Enterobacteriaceae. A small-scale testing prototypewas used
and experiments were conducted using treatment times of
1.0, and 1.5 seconds at 90-96°C. Sensory evaluations were
conducted over a period of 12 weeks with 72 eggs tested
every week, using a food texture analyzer (TA-XT analyzer
by Texture Technologies). Tests included egg weight, yolk
and albumin height, vitelline membrane strength, shell
breaking strength and Haugh Unit. Hatching frequency was
determined in a large experiment with 504 hatching eggs
in total. Each of the groups (control, 1.0s and 1.5s) were
assigned 168 eggs for comparison.
Results: Results showed complete reduction of Salmonella
and Enterobacteriaceae at 1.0s. The results showed no
changes in egg quality compared to control untreated eggs.
Furthermore, results suggested the hatching frequency of
the treated samples were no different than the controls. In
all cases, a hatching frequency of 88% was observed.
Speaker Biography
Hanieh S Musavian has completed her master’s degree in biotechnology at the age of 22
years from Technical University of Denmark. Current position as R&D Project manager and
specialist at FORCE Technology (an GTS Institute) which is an independent not-for-profit
organization located in Denmark.
e:
Hanieh S Musavian, Food Safety 2018, Volume 2
DOI: 10.4066/2591-796X-C1-002