Biodegradation of 17β-estradiol by Bacterial Co-culture Isolated from Manure.

ABSTRACT: Animal wastes are potential sources of natural and steroidal estrogen hormones into the environment. These hormones can be removed by microorganisms with induced enzymes. Two strains of 17β-estradiol-degrading bacteria (LM1 and LY1) were isolated from animal wastes. Based on biochemical characteristics and 16 S rDNA gene sequences, we identified strains LM1 and LY1 as belonging to the genus of Acinetobacter and Pseudomonas, respectively. Bacterial co-culture containing LM1 and LY1 bacterial strains could rapidly remove approximately 98% of E2 (5 mg L-1) within 7 days. However, strains LM1 and LY1 degraded 77% and 68% of E2 when they were incubated alone, respectively. More than 90% of 17β-estradiol (E2, ≤ 20 mg L-1) could be removed by bacterial co-culture. Low C/N ratio (1:35) was more su

SUBMITTER: Li M 

PROVIDER: S-EPMC5830580 | biostudies-literature | 2018 Feb

REPOSITORIES: biostudies-literature