TY - JOUR ID - 88191 TI - Biodegradation of Polychlorinated Biphenyls by and Isolated from Contaminated Soil JO - International Journal of Engineering JA - IJE LA - en SN - 1025-2495 AU - Samadi, A. AU - Sharifi, H. AU - Ghobadi Nejad, Z. AU - Yaghmaei, S. AD - Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran AD - Biochemical and Bioenvironmental Research Center, Sharif University of Technology, Tehran, Iran Y1 - 2019 PY - 2019 VL - 32 IS - 5 SP - 628 EP - 633 KW - Bioremediation KW - Polychlorinated Biphenyls KW - isolation KW - 16S rRNA KW - GC/MS DO - N2 - Polychlorinated biphenyls (PCBs) cause many significant ecological problems because of their low degradability, high harmfulness, and solid bioaccumulation.Two bacterial strains were isolated from soil that had been polluted with electrical transformer liquid for more than 40 years. The isolates were distinguished as Lysinibacillus macrolides DSM54Tand Bacillus firmus NBRC15306Tthrough 16S rRNA sequencing analysis.This is the primary report of an agent of the genus Bacillus firmus equipped for the removal of PCBs. The strains could develop broadly on 2-Chlorobiphenyl and 2,4-dichlorobiphenyl. GC/MS analysis of individual congeners revealed up to 80% degradation of the xenobiotics in 96h, attendant with cell proliferation of up to two orders of extent. More extensive investigation of the isolates may be helpful in surveying detoxification forms and in planning bioremediation and bioaugmentation strategies. UR - https://www.ije.ir/article_88191.html L1 - https://www.ije.ir/article_88191_4a6b6ab090d86f9a197c7bd588b39234.pdf ER -