TABLE 1.
Origin of strains, MICs, and hydrolytic ability
| Strain designation | Origin | MIC (mg liter−1)f | Degradation (%)g |
|---|---|---|---|
| E. cloacae | |||
| EMa | Mineral supplement | >3,200 | 99.9 |
| ID 67037b | Clinical strain | 3,200 | 12.7 |
| ID 67284b | Clinical strain | 3,200 | 12.8 |
| LSPQ 3022 | Reference strain | 3,200 | 15.3 |
| LSPQ 3345 | Reference strain | 3,200 | 19.2 |
| E. gergoviae | |||
| G1c | Eye liner | >3,200 | 100 |
| G2c | Foundation | 3,200 | 10.3 |
| G3c | Exfoliating gel | 3,200 | 8.9 |
| G4c | Foundation | 3,200 | 8.5 |
| G5c | Clinical strain | 3,200 | 7.8 |
| G6c | Cream | 3,200 | 10.4 |
| G7c | Challenge test | 3,200 | 14.7 |
| G8c | Shampoo | 3,200 | 14.4 |
| G9c | Cream | 3,200 | 11.4 |
| G10c | Shampoo | 3,200 | 12.3 |
| G11c | Cream | 3,200 | 16.3 |
| G12c | Rinsing material | 3,200 | 97.9 |
| G13c | Clinical strain | 1,600 | 15.5 |
| G14c | Clinical strain | 3,200 | 20.0 |
| G15c | Clinical strain | 3,200 | 22.6 |
| GMa | Mineral supplement | 3,200 | 18.7 |
| WLd | Syrup | 3,200 | 14.8 |
| LSPQ 3347 | Reference strain | 3,200 | 14.0 |
| ATCC 33028 | Reference strain | 3,200 | 12.6 |
| ATCC 33426 | Reference strain | 3,200 | 14.7 |
| ATCC 33428 | Reference strain | 3,200 | 18.1 |
| E. aerogenes | |||
| AE1c | Clinical strain | 3,200 | 15.4 |
| AE1c | Clinical strain | 3,200 | 12.7 |
| AE1c | Clinical strain | 3,200 | 14.7 |
| LSPQ 3811 | Reference strain | 3,200 | 15.6 |
| ATCC 13048 | Reference strain | 3,200 | 12.9 |
| P. agglomerans | |||
| ID 60635b | Clinical strain | 3,200 | 10.1 |
| ID 65518b | Clinical strain | 3,200 | 14.4 |
| LSPQ 3353 | Reference strain | 1,600 | 14.5 |
| LSPQ 3825 | Reference strain | 800 | 13.5 |
| E. coli | |||
| ID 41839e | Clinical strain | 3,200 | 9.1 |
| ATCC 25922 | Reference strain | 1,600 | 12.6 |
| ATCC 35218 | Reference strain | 3,200 | 11.3 |
| B. cepacia IFO 15124 | Oil-in-water emulsion | 1,600 | 37.9 |
| P. aeruginosa | |||
| ID 33122e | Clinical strain | 3,200 | 12.4 |
| ATCC 33350 | Reference strain | 1,600 | 10.2 |
Provided by a private company in Quebec, Canada.
Provided by the “Laboratoire de Santé Publique” (LSPQ), Quebec, Canada.
Provided by C. Bollet, Faculty of Medicine, INSERM, Marseille, France.
Provided by a private company in Ontario, Canada.
Provided by the Maisonneuve-Rosemont Hospital, Montreal, Canada.
Expressed as the concentration of methyl paraben.
Expressed as the percentage of 800 ppm (5.7 mM) of methyl paraben degraded after 2 h of incubation by an exponentially growing culture.