TABLE 1.
MICs of biocide for M. immunogenum and P. fluorescens in pure and mixed suspensions treated with biocides in MWF and saline matrices
| Biocide (type) | MIC of biocide (ppm)a
|
|||||||
|---|---|---|---|---|---|---|---|---|
|
M. immunogenum (60 min)
|
P. fluorescens (30 min)
|
|||||||
| Pure suspension
|
Mixed suspension with P. fluorescens
|
Pure suspension
|
Mixed suspension with M. immunogenum
|
|||||
| MWF | Saline | MWF | Saline | MWF | Saline | MWF | Saline | |
| Grotan (HCHO) | 25,000 | 13,000 | 32,000 | 23,000 | 1,000 | 80 | 2,000 | 300 |
| Bioban (HCHO) | 42,000 | 24,000 | 25,000 | 23,000 | 400 | 30 | 900 | 60 |
| Kathon (isothiazolone) | 600 | 900 | 3,000 | 4,000 | 20 | 100 | 100 | 200 |
| Preventol (phenolic) | 12,000 | 3,000 | 14,000 | 6,000 | 800 | 100 | 4,000 | 600 |
a
The MIC value corresponded to the lowest concentration that caused complete growth inhibition (100% kill) of the test organism at a specified contact time (60 min for M. immunogenum and 30 min for P. fluorescens).