Supernatant
Residual activity (%)*
Neutralized + catalase (N+C)
100**
N+C + pepsin
0
N+C + trypsin
0
N+C + α-chymotrypsin
0
N+C + lipase
100
N+C + α-amylase
100
10 and 20% hexadecane
100
10 and 20% ethyl acetate
75
10% chloroform
55
20% chloroform
31
10 and 20% ethanol
22
Table 1:
Effect of chemical treatments on bacteriocin activity; *Percentage of the inhibitory activity on
L. monocytogenes
growth; **100%=61,440 AU/mL (control).