Table 2.
Hold time study using naturally occurring endotoxins (NOEs) from different species. The hold time study was performed over 7 days using the prepared NOEs for different species. All recoveries in percentage were calculated based on the water control at t(0).
| Masking Time in Days | Endotoxin Recoveries Based on the Water Control t(0) (%) | Activity of the Water Control (EU/mL) | ||||
|---|---|---|---|---|---|---|
| 0 | 1 | 2 | 3 | 7 | ||
| E. coli O55:B5 | 32 | 7 | 8 | 2 | 0 | 40.9 |
| E. coli O113 | 42 | 0 | 0 | 0 | 0 | 64.7 |
| E. cloacae | 20 | 4 | 1 | 0 | 0 | 50.9 |
| S. marcescens | 106 | 46 | 29 | 12 | 8 | 60.5 |
| P. aeruginosa | 135 | 29 | 25 | 23 | 16 | 79.6 |
| B. cepacia | 248 | 81 | 141 | 92 | 113 | 48.5 |
| S. maltophilia | 20 | 1 | 1 | 0 | 0 | 37.9 |
| R. pickettii | 108 | 73 | 80 | 71 | 55 | 68.4 |