Biodegradation of Diphenyl ortho-phthalate DPP by Pseudomonas sp. BET-7 isolated from active sludge
Conference
Zhang, K, Chen, J, Yang, S et al. (2018). Biodegradation of Diphenyl ortho-phthalate DPP by Pseudomonas sp. BET-7 isolated from active sludge
. 186(3), 10.1088/1755-1315/186/3/012062
Zhang, K, Chen, J, Yang, S et al. (2018). Biodegradation of Diphenyl ortho-phthalate DPP by Pseudomonas sp. BET-7 isolated from active sludge
. 186(3), 10.1088/1755-1315/186/3/012062
Diphenyl ortho-phthalate (DPP), as a prior pollutant for control, has been widely detected in environment. One bacterial strain was isolated from activated sludge using Diphenyl ortho-phthalate as the sole source of carbon and energy. According to the phylogeny of 16S rDNA sequence, the bacterial strain BET-7 was identified as Pseudomonas sp. Biodegradation of DPP by Pseudomonas sp. BET-7 was investigated. Results showed that the optimum pH and temperature for DPP degradation by BET-7 were 8.0 and 15 °C.The concentration of degradation ranged from 100 mg.L-1-400 mg.L-1. The strain exhibited higher degradation efficiencies and growth rates in alkalinity than in acidity. The optimum temperature was lower than 20 °C. The degradation rate decreased when temperature went up. The strain could degrade approximately 90% of 400 mg/L DPP after 60 h of cultivation. The results suggest that BET-7 may represent a promising application for DPP bioremediation.
