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ioattività Di aciDi grassi
nei confronti Di microrganismi
alteranti e Patogeni
20 ppm of myristic and palmitic acids and their monoglycerides showed a
promising bioactivity (60-80%) against E. coli O157:H7 within 10-24 h; 50 ppm
of monolaurin inhibited y. enterocolitica and E. coli O157:H7 by > 90% of control
for 96 h; otherwise, 40 ppm of monolaurin and 30-50 ppm of lauric acid reduced
y. enterocolitica growth by >65% of control. The effect of lauric acid and
its monoglyceride against Salmonella spp. was moderate (inhibition of
approximately 30%).
The results of this paper suggested some interesting ideas: the same compound
could exert an inhibition or a stimulation of microbial growth; moreover, the
studied compounds seemed to act in a reversible manner, as the inhibition of
microorganism was quite strong within the first 10-24 h and decreased for a
prolonged incubation.
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