文献类型：期刊文献

英文题名：Efficient biodegradation of di-(2-ethylhexyl) phthalate by a novel strain Nocardia asteroides LMB-7 isolated from electronic waste soil

作者：Chang, Tian-Tian[1];Lin, Zhi-Wei[1];Zhang, Liu-Qing[1];Liu, Wei-Bing[1];Zhou, Ying[1];Ye, Bang-Ce[1]

机构：[1]East China Univ Sci & Technol, Lab Biosyst & Microanal, State Key Lab Bioreactor Engn, Meilong RD 130, Shanghai 200237, Peoples R China

年份：2022

卷号：12

期号：1

外文期刊名：SCIENTIFIC REPORTS

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000852426200022)】；

基金：This work was supported by National Key Research and Development Program of China (2021YFC2101500), the National Natural Science Foundation of China (31730004), and the General Program of Shanghai Natural Science Foundation (19ZR1413700). Grateful thanks are due to Professor Hauke Smidt for the language revision.

语种：英文

摘要：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 degrees 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.