Open AccessComparative lethality kinetic curves and predictive models of F ‐value for L isteria monocytogenes using different sanitizers
Author(s) -
Beltrame Cezar A.,
Kubiak Gabriela B.,
Rottava Ieda,
Toniazzo Geciane,
Cansian Rogério L.,
Lerin Lindomar A.,
Oliveira Débora,
Treichel Helen
Publication year - 2013
Publication title -
food science and nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.614
H-Index - 27
ISSN - 2048-7177
DOI - 10.1002/fsn3.5
Subject(s) - peracetic acid , disinfectant , chlorhexidine , chemistry , acetic acid , organic acid , hand sanitizer , food science , chromatography , organic chemistry , medicine , dentistry , hydrogen peroxide
The objective of this work was to evaluate the kinetic of inactivation of L isteria monocytogenes using peracetic acid, chlorhexidine, and organic acids as active agent, determining the respective D ‐, Z ‐, and F ‐values. From our knowledge, these important results from an industrial view point are not available in the current literature, mainly for organic acids, pointing out the main contribution of the present work. Lower D ‐values were obtained for peracetic acid and chlorhexidine, compared with the organic acids. For the reduction of 6 log 10 of L . monocytogenes using peracetic acid, at 0.2, 0.1, and 0.05% are necessary 7.08, 31.08, and 130.44 min of contact, respectively. The mathematical models of F ‐values showed that at concentrations lower than 0.15% one can verify an exponential increase in F ‐values, for both de chlorhexidine and peracetic acid. The organic acids presented a linear behavior, showing slight variation in F ‐values, is even more effective in under dosage. The results obtained are of fundamental importance in terms of industrial strategy for sanitization procedure, permitting to choose the best relation product concentration/exposure time, aiming at reducing costs without compromising the disinfectant efficiency.