TY - JOUR
T1 - Green bioprocess for degradation of synthetic dyes mixture using consortium of laccase-producing bacteria from Himalayan niches
AU - Ambika,
AU - Kumar, Vijay
AU - Jamwal, Aanchal
AU - Kumar, Virender
AU - Singh, Dharam
N1 - Copyright © 2022 Elsevier Ltd. All rights reserved.
PY - 2022/5/15
Y1 - 2022/5/15
N2 - Microbial remediation of synthetic dyes from industrial effluents offers a sustainable and eco-friendly alternative. Herein, laccase-producing bacteria were isolated from decaying wood niches in the Himalayan region. A bacterial consortium (BC–I) was developed to decolorize synthetic dyes cocktail of three major groups (azo, anthraquinone, and triphenylmethane). BC-I consisted of Klebsiella sp. PCH427, Enterobacter sp. PCH428, and Pseudomonas sp. PCH429 can decolorize 77% of 240 mg/L dyes cocktail in 44 h at 37 °C. BC-I works under wide pH (4.0–10.0), a high salt concentration (NaCl, 10%), and low nutrients. Further, FT-IR and LC-MS validated the dyes cocktail degradation and identified the degraded products. Additionally, phytotoxicity analysis of BC-I treated dyes cocktail significantly reduced the toxicity to Vigna radiata and Cicer arietinum compared to untreated dyes cocktail. The present study has simulated environmental challenges of acidic, alkaline, and saline industrial dyes effluents, which are significant to bioremediation.
AB - Microbial remediation of synthetic dyes from industrial effluents offers a sustainable and eco-friendly alternative. Herein, laccase-producing bacteria were isolated from decaying wood niches in the Himalayan region. A bacterial consortium (BC–I) was developed to decolorize synthetic dyes cocktail of three major groups (azo, anthraquinone, and triphenylmethane). BC-I consisted of Klebsiella sp. PCH427, Enterobacter sp. PCH428, and Pseudomonas sp. PCH429 can decolorize 77% of 240 mg/L dyes cocktail in 44 h at 37 °C. BC-I works under wide pH (4.0–10.0), a high salt concentration (NaCl, 10%), and low nutrients. Further, FT-IR and LC-MS validated the dyes cocktail degradation and identified the degraded products. Additionally, phytotoxicity analysis of BC-I treated dyes cocktail significantly reduced the toxicity to Vigna radiata and Cicer arietinum compared to untreated dyes cocktail. The present study has simulated environmental challenges of acidic, alkaline, and saline industrial dyes effluents, which are significant to bioremediation.
KW - Bacterial consortium
KW - Bioremediation
KW - Decolorization
KW - Dyes cocktail
KW - Laccase
UR - http://www.scopus.com/inward/record.url?scp=85125165778&partnerID=8YFLogxK
U2 - 10.1016/j.jenvman.2022.114764
DO - 10.1016/j.jenvman.2022.114764
M3 - Journal article
C2 - 35219212
AN - SCOPUS:85125165778
SN - 0301-4797
VL - 310
JO - Journal of Environmental Management
JF - Journal of Environmental Management
M1 - 114764
ER -