Effect of protein
To investigate the effect of proteins on the antimicrobial activity of
oregano and thyme, growth experiments with L. monocytogenes were
performed in beef extract at 4 different concentrations (1.5, 3, 6, and
12%). The lag phase of L. monocytogenes grown in beef extract
containing oregano was longer than the control at protein concentrations
of 6% and 12% (pb0.05). The antimicrobial activity of thyme was
increased in high protein concentrations, leading to a significantly