TABLE 5.
Antimicrobial activity of selected Bacillus isolatesa
| Indicator strains | Growth inhibition by strain:
|
||||||
|---|---|---|---|---|---|---|---|
| 3 | 37 | 56 | 197 | 200 | 210 | 259 | |
| E. coli O78:K80 | − | − | − | − | +/− | − | − |
| E. coli O157:H7 | − | − | − | − | − | − | − |
| S. enterica Serovar Enteritidis S1400 | − | − | − | − | − | − | − |
| S. bareilly | − | − | − | − | − | − | − |
| C. rodentium | − | − | − | − | − | − | − |
| P. aeruginosa | − | − | − | − | − | − | − |
| E. aerogenes | − | − | − | − | − | − | − |
| S. aureus RN4220(pVF5) | − | − | − | ++ | ++ | − | − |
| S. aureus RN2442(pE194) | − | +/− | − | ++ | +++ | +/− | − |
| E. faecalis ATCC 2570 | − | − | − | − | ++ | − | − |
| L. innocua | − | ++ | ++ | +/− | +++ | +++ | − |
| L. monocytogenes | − | + | + | − | ++ | ++ | − |
| C. perfringens fD00385 | − | +++ | + | ++ | +++++ | ++++ | v |
| B. megaterium 899 | + | +++ | +++ | ++ | +++++ | ++++ | + |
| B. cereus T | − | ++ | − | +/− | ++ | + | − |
| B. licheniformis 9945A | − | − | − | − | − | − | − |
| B. cereus var. vietnami (Subtyl) | − | ++ | +/− | − | +++ | + | − |
| B. cereus (Biosubtyl Da Lat) | − | ++ | ++ | +/− | +++ | + | − |
| B. pumilus (Biosubtyl Nha Trang) | − | − | + | − | − | − | − |
| B. subtilis MB24 | − | − | ++ | − | − | − | − |
| B. clausii DSM 8716 | − | − | +/− | − | − | − | − |
| B. sphaericus ATCC 33203 | − | + | ++ | ++ | + | − | − |
| B. sphaericus ATCC 14577 | − | + | ++ | + | + | − | − |
a
The different scores try to reflect different degrees of growth inhibition. +, clear halo of growth inhibition in at least one time point (results scored at 5, 8, 24, and 48 h of incubation); multiple +, increased activity as assessed visually by the increased diameter of the inhibition zone; −, no inhibition; +/−, reduction in growth intensity but not complete inhibition; v, results varied. All indicator strains were assayed at least twice.