TSP, ASC and CA were effective in extending L and decreasing D of
inoculated bacteria, relative to control samples. Similar figures for
growth kinetic parameters were found for samples dipped in PA or
in CD and those left untreated (Tables 1–3). The strongest antimicrobial
activity against Gram-positive bacteria was shown by CA, which
caused lower (Pb0.05) D figures (4.68±1.43 log10 cfu/cm2) than
those achieved by TSP (6.16±0.99 log10 cfu/cm2) or ASC (6.32±
1.62 log10 cfu/cm2). On the other hand, TSP and ASC proved to be
the most effective compounds against Gram-negative bacteria, having
lower (Pb0.05) D values (5.36±0.92 log10 cfu/cm2 and 5.90±1.98
log10 cfu/cm2, respectively), as compared to CA (6.94±1.80 log10
cfu/cm2). P. fluorescens was strongly influenced by the effect of TSP,
this producing the largest increases in L and the greatest decreases
in μ and D, relative to untreated samples (Tables 1–3).