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- Title
Efficient biodegradation of di-(2-ethylhexyl) phthalate by a novel strain Nocardia asteroides LMB-7 isolated from electronic waste soil.
- Authors
Chang, Tian-Tian; Lin, Zhi-Wei; Zhang, Liu-Qing; Liu, Wei-Bing; Zhou, Ying; Ye, Bang-Ce
- Abstract
The di-2-ethylhexyl phthalate (DEHP) degrading strain LMB-7 was isolated from electronic waste soil. According to its biophysical/biochemical characteristics and 16S rRNA gene analysis, the strain was identified as Nocardia asteroides. Optimal pH and temperature for DEHP degradation were 8.0 and 30 °C, respectively, and DEHP removal reached 97.11% after cultivation for 24 h at an initial concentration of 400 mg/L. As degradation intermediates, di-butyl phthalates, mono-2-ethylhexyl phthalate and 2-ethylhexanol could be identified, and it could be confirmed that DEHP was completely degraded by strain LMB-7. To our knowledge, this is a new report of DEHP degradation by a strain of Nocardia asteroides, at rates higher than those reported to date. This finding provides a new way for DEHP elimination from environment.
- Subjects
ELECTRONIC waste; NOCARDIA; PHTHALATE esters; BIODEGRADATION; SOILS; RIBOSOMAL RNA; MOUNTAIN soils
- Publication
Scientific Reports, 2022, Vol 12, Issue 1, p1
- ISSN
2045-2322
- Publication type
Article
- DOI
10.1038/s41598-022-19752-x