Influence of pulsed electric field on the survival of Yersinia enterocolitica in minced beef meat: assessment of microbiological activity of selected cell lines of bacteria under influence of physical-chemical factors
Journal Title: Aparatura Badawcza i Dydaktycza - Year 2012, Vol 17, Issue 2
Abstract
The main purpose of this study was to examine the efficacy of the pulsed electric field (PEF) on inoculated Yersinia enterocolitica ATCC 35669 in minced beef meat. The pulse frequencies ranged from 28 to 2800 MHz. The samples were examined after 3 days of storage in temperature of +4 °C and after 30 days of storage in temperature of - 20 °C. Inactivation of Y. enterocolitica increased with the pulse frequencies. The treatment of meat with the electric field with the pulse frequencies of 28 MHz occurred to be ineffective towards Y. enterocolitica. The treatment of meat with the electric field with the pulse frequencies of 280 MHz occurred to be effective only towards Y. enterocolitica contained in beef meat stored at -20 °C for 30 days. The treatment of meat with the electric field with the pulse frequencies of 2800 MHz occurred to be highly effective towards Y. enterocolitica contained in meat stored both +4 °C and -20 °C.
Authors and Affiliations
Milena Alicja Stachelska, Wanda Stankiewicz-Szymczak, Antoni Jakubczak, Renata Świsłocka, Włodzimierz Lewandowski
Keywords
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