TABLE 2.
Differentiation of P. acidilactici and P. pentosaceus by using tests with substrates linked to chromogenic compounds
| No. of strains
|
Reactiona on substrate:
|
|||
|---|---|---|---|---|
| P. acidilactici | P. pentosaceus | p-Nitrophenyl-β-d-glucopyranoside | o-Nitrophenyl-β-d-glucopyranoside | p-Nitrophenyl N-acetyl-β-d-glucosaminide |
| 0 | 12 | + | + | + |
| 28 | 2 | − | − | − |
| 4 | 0 | +/− | +/− | +/− |
| 1 | 1 | − | +/− | +/− |
| 3 | 0 | − | − | +/− |
| 2 | 1 | +/− | − | − |
| 1 | 0 | +/− | +/− | − |
| 0 | 1 | − | + | − |
| 15 | 1 | − | +/− | − |
a
Score: −, negative reaction; +, positive reaction; +/−, weak reaction (considered negative for practical purposes).