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Biodegradation of benzoαpyrene, toluene, and formaldehyde from the gas phase by a consortium of Rhodococcus erythropolis and Fusarium solani
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Biodegradation of benzoαpyrene, toluene, and formaldehyde from the gas phase by a consortium of Rhodococcus erythropolis and Fusarium solani
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Biodegradation of benzoαpyrene, toluene, and formaldehyde from the gas phase by a consortium of Rhodococcus erythropolis and Fusarium solani
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Journal Article
Biodegradation of benzoαpyrene, toluene, and formaldehyde from the gas phase by a consortium of Rhodococcus erythropolis and Fusarium solani
2017
Overview
Polycyclic aromatic hydrocarbons (PAHs) and volatile organic compounds (VOCs) are important indoor contaminants. Their hydrophobic nature hinders the possibility of biological abatement using biofiltration. Our aim was to establish whether the use of a consortium of
Fusarium solani
and
Rhodococcus erythropolis
shows an improved performance (in terms of mineralization rate and extent) towards the degradation of formaldehyde, as a slightly polar VOC; toluene, as hydrophobic VOC; and benzo[α]pyrene (BaP) as PAH at low concentrations compared to a single-species biofilm in serum bottles with vermiculite as solid support to mimic a biofilter and to relate the possible improvements with the surface hydrophobicity and partition coefficient of the biomass at three different temperatures. Results showed that the hydrophobicity of the surface of the biofilms was affected by the hydrophobicity of the carbon source in
F. solani
but it did not change in
R
.
erythropolis.
Similarly, the partition coefficients of toluene and BaP in
F. solani
biomass (both as pure culture and consortium) show a reduction of up to 38 times compared to its value in water, whereas this reduction was only 1.5 times in presence of
R
.
erythropolis
. Despite that increments in the accumulated CO
2
and its production rate were found when
F. solani
or the consortium was used, the mineralization extent of toluene was below 25%. Regarding BaP degradation, the higher CO
2
production rates and percent yields were obtained when a consortium of
F. solani
and
R
.
erythropolis
was used, despite a pure culture of
R
.
erythropolis
exhibits poor mineralization of BaP.
Publisher
Springer Berlin Heidelberg,Springer,Springer Nature B.V
Subject
/ Air Pollution, Indoor - prevention & control
/ Biodegradation, Environmental
/ biofilm
/ Biofilms
/ Biomass
/ Biomedical and Life Sciences
/ bottles
/ carbon
/ Filtration - instrumentation
/ Fusarium
/ gases
/ Microbial Consortia - physiology
/ Microbial Genetics and Genomics
/ Polycyclic aromatic hydrocarbons
/ Polycyclic Aromatic Hydrocarbons - metabolism
/ Pyrene
/ Toluene
/ VOCs
