TABLE 3.
Summary of the growth test results of bacterial isolates obtained from the consortium
| Parameter | Pseudomonas sp. KK6 | Sphingobium barthaii KK22 | Achromobacter sp. KK8 | Cupriavidus sp. KK10 |
|---|---|---|---|---|
| Bacterial growth on hydrocarbonsa | ||||
| n-Hexadecane | + | − | − | − |
| Phenanthrene | − | +b | − | − |
| Naphthalene | − | +b | − | − |
| Toluene | − | +b | − | − |
| 1-Hydroxy-2-naphthoic acid | − | +b | − | − |
| 1,2-Dihydroxynaphthalene | − | +/− | − | − |
| Salicylic acid | − | +b | +b | +b |
| Gentisic acid | + | − | + | + |
| Phthalic acid | − | +/− | + | + |
| Protocatechuic acid | + | − | − | − |
| Benzoic acid | +b | +b | +b | +b |
| Biosurfactant production (hemolysis)c | + | + | − | − |
a
Bacterial growth was evaluated (+ or −) by visual inspection of turbidity and/or floc formation after 10 days.
b
Presence of biotransformed products in the culture was confirmed by LC/ESI(−)-MS/MS.
c
Biosurfactant production was evaluated (+ or −) through a hemolytic test using sheep blood agar.