2020
DOI: 10.1186/s40643-020-0294-0
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Aerobic bacterial transformation and biodegradation of dioxins: a review

Abstract: Waste generation tends to surge in quantum as the population and living conditions grow. A group of structurally related chemicals of dibenzofurans and dibenzo-p-dioxins including their chlorinated congeners collectively known as dioxins are among the most lethal environmental pollutants formed during different anthropogenic activities. Removal of dioxins from the environment is challenging due to their persistence, recalcitrance to biodegradation, and prevalent nature. Dioxin elimination through the biologica… Show more

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Cited by 49 publications
(26 citation statements)
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References 127 publications
(181 reference statements)
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“…Dioxins, a group of structurally related chemicals, consist of dibenzo-p-dioxins, its 75 analogue of polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans, its 135 congeners of polychlorinated dibenzofurans (PCDFs) dictated by the numbering and positions of the chlorine atoms in the dioxin/furan molecule (Kulkarni et al 2008). They are a common by-product of incomplete combustion and are known not only to be highly refractive, but also some of the most toxic and carcinogenic group of pollutants (Saibu et al 2020a). Some bacterial strains with dioxin and its analogue dibenzofuran degradation potentials were recently reported from polluted systems in Nigeria (Saibu et al 2020b).…”
Section: Discussionmentioning
confidence: 99%
“…Dioxins, a group of structurally related chemicals, consist of dibenzo-p-dioxins, its 75 analogue of polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans, its 135 congeners of polychlorinated dibenzofurans (PCDFs) dictated by the numbering and positions of the chlorine atoms in the dioxin/furan molecule (Kulkarni et al 2008). They are a common by-product of incomplete combustion and are known not only to be highly refractive, but also some of the most toxic and carcinogenic group of pollutants (Saibu et al 2020a). Some bacterial strains with dioxin and its analogue dibenzofuran degradation potentials were recently reported from polluted systems in Nigeria (Saibu et al 2020b).…”
Section: Discussionmentioning
confidence: 99%
“…Evidently, dioxins are not easily metabolized and consequently this makes their elimination or degradation extremely slow [97]. Nonetheless, dioxins are eliminated through faeces and negligibly via the kidneys in form of urine [104].…”
Section: Toxicokinetics Of Dioxinsmentioning
confidence: 99%
“…This clean-up of the environment by bacterial degradation of PCDD/Fs involves both aerobic and anaerobic processes [12,99]. It is important to note that the reaction products of these catabolic reactions can be mineralized further and directed into the biogeochemical cycle because incomplete degradation can result into the formation and accumulation of more toxic metabolites that can be more toxic than their primary substrates [97].…”
Section: Environmental Degradation Of Dioxins Furans and Their Relamentioning
confidence: 99%
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