Biodegradation of pyrene during submerged cultivation of Trametes versicolor

Pyrene is one of the most persistent pollutants belonging to the group of high molecular weight polycyclic aromatic hydrocarbons. Due to the presence of fused benzene rings these compounds are extremely difficult for biodegradation. The white-rot fungi possess remarkably high potential when it comes...

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主要な著者: Brazkova Mariya, Angelova Galena, Stefanova Petya, Krastanov Albert
フォーマット: 論文
言語:English
出版事項: EDP Sciences 2024-01-01
シリーズ:BIO Web of Conferences
オンライン・アクセス:https://www.bio-conferences.org/articles/bioconf/pdf/2024/21/bioconf_foset2023_02001.pdf
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author Brazkova Mariya
Angelova Galena
Stefanova Petya
Krastanov Albert
author_facet Brazkova Mariya
Angelova Galena
Stefanova Petya
Krastanov Albert
author_sort Brazkova Mariya
collection DOAJ
description Pyrene is one of the most persistent pollutants belonging to the group of high molecular weight polycyclic aromatic hydrocarbons. Due to the presence of fused benzene rings these compounds are extremely difficult for biodegradation. The white-rot fungi possess remarkably high potential when it comes to the biodegradation of toxic organic substances with aromatic rings due to their unique lignin-degrading enzymatic complex. In the present study, pyrene with concentrations up to 200 ppm was added to the nutrient medium during submerged cultivation of the higher basidiomycete mushroom Trametes versicolor NBIMCC 8939. The experiment continued for 20 days and samples were taken every 5 days. Analysis of the activities of the enzymes laccase and manganese-dependent peroxidase were performed as well as determination of the residual pyrene concertation and identification of the by-products of the degradation process. It was established that the highest pyrene removal was achieved when the lowest initial concentration was introduced to the medium. The strain T. versicolor NBIMCC 8939 was able to biodegrade 12% of the initially introduced 50 ppm pyrene in the medium.
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spelling doaj.art-6cceac8e35a2425faae6a71048e1ff5b2024-04-12T07:37:29ZengEDP SciencesBIO Web of Conferences2117-44582024-01-011020200110.1051/bioconf/202410202001bioconf_foset2023_02001Biodegradation of pyrene during submerged cultivation of Trametes versicolorBrazkova Mariya0Angelova Galena1Stefanova Petya2Krastanov Albert3Department of Biotechnology, University of Food TechnologiesDepartment of Biotechnology, University of Food TechnologiesDepartment of Biotechnology, University of Food TechnologiesDepartment of Biotechnology, University of Food TechnologiesPyrene is one of the most persistent pollutants belonging to the group of high molecular weight polycyclic aromatic hydrocarbons. Due to the presence of fused benzene rings these compounds are extremely difficult for biodegradation. The white-rot fungi possess remarkably high potential when it comes to the biodegradation of toxic organic substances with aromatic rings due to their unique lignin-degrading enzymatic complex. In the present study, pyrene with concentrations up to 200 ppm was added to the nutrient medium during submerged cultivation of the higher basidiomycete mushroom Trametes versicolor NBIMCC 8939. The experiment continued for 20 days and samples were taken every 5 days. Analysis of the activities of the enzymes laccase and manganese-dependent peroxidase were performed as well as determination of the residual pyrene concertation and identification of the by-products of the degradation process. It was established that the highest pyrene removal was achieved when the lowest initial concentration was introduced to the medium. The strain T. versicolor NBIMCC 8939 was able to biodegrade 12% of the initially introduced 50 ppm pyrene in the medium.https://www.bio-conferences.org/articles/bioconf/pdf/2024/21/bioconf_foset2023_02001.pdf
spellingShingle Brazkova Mariya
Angelova Galena
Stefanova Petya
Krastanov Albert
Biodegradation of pyrene during submerged cultivation of Trametes versicolor
BIO Web of Conferences
title Biodegradation of pyrene during submerged cultivation of Trametes versicolor
title_full Biodegradation of pyrene during submerged cultivation of Trametes versicolor
title_fullStr Biodegradation of pyrene during submerged cultivation of Trametes versicolor
title_full_unstemmed Biodegradation of pyrene during submerged cultivation of Trametes versicolor
title_short Biodegradation of pyrene during submerged cultivation of Trametes versicolor
title_sort biodegradation of pyrene during submerged cultivation of trametes versicolor
url https://www.bio-conferences.org/articles/bioconf/pdf/2024/21/bioconf_foset2023_02001.pdf
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AT stefanovapetya biodegradationofpyreneduringsubmergedcultivationoftrametesversicolor
AT krastanovalbert biodegradationofpyreneduringsubmergedcultivationoftrametesversicolor