Remazol Blue Removal and EPS Production by Pseudomonas aeruginosa and Ochrobactrum sp.

摘要

Pseudomonas aeruginosa and Ochrobactrum sp. were tested according to EPS production at different pH, temperatures, Remazol Blue concentrations, and incubation periods. Optimum pH was 7 for P. aeruginosa and 8 for Ochrobactrum sp. according to the highest EPS amount. P. aeruginosa produced the highest EPS (456.4 mg·l~(-1)) after incubation for 48 h (40℃) and Ochrobactrum sp. gave the highest yield (404.6 mg·l~(-1)) after incubation for 72 h (30℃). P. aeruginosa had a low capacity to remove Remazol Blue (12.5%); however, Ochrobactrum sp. had a significant potential to remove Remazol Blue yielded as 89.4%.