A Comparative Study of Cr(VI) Sorption by <i>Aureobasidium pullulans</i> AKW Biomass and Its Extracellular Melanin: Complementary Modeling with Equilibrium Isotherms, Kinetic Studies, and Decision Tree Modeling
Melanin as a natural polymer is found in all living organisms, and plays an important role in protecting the body from harmful UV rays from the sun. The efficiency of fungal biomass (<i>Aureobasidium pullulans</i>) and its extracellular melanin as Cr(VI) biosorbents was comparatively con...
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| Format: | Article |
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MDPI AG
2023-09-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/15/18/3754 |
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| author | Hala Fakhry Abeer A. Ghoniem Fatimah O. Al-Otibi Yosra A. Helmy Mohammed S. El Hersh Khaled M. Elattar WesamEldin I. A. Saber Ashraf Elsayed |
| author_facet | Hala Fakhry Abeer A. Ghoniem Fatimah O. Al-Otibi Yosra A. Helmy Mohammed S. El Hersh Khaled M. Elattar WesamEldin I. A. Saber Ashraf Elsayed |
| author_sort | Hala Fakhry |
| collection | DOAJ |
| description | Melanin as a natural polymer is found in all living organisms, and plays an important role in protecting the body from harmful UV rays from the sun. The efficiency of fungal biomass (<i>Aureobasidium pullulans</i>) and its extracellular melanin as Cr(VI) biosorbents was comparatively considered. The efficiency of Cr(VI) biosorption by the two sorbents used was augmented up to 240 min. The maximum sorption capacities were 485.747 (fungus biomass) and 595.974 (melanin) mg/g. The practical data were merely fitted to both Langmuir and Freundlich isotherms. The kinetics of the biosorption process obeyed the pseudo-first-order. Melanin was superior in Cr(VI) sorption than fungal biomass. Furthermore, four independent variables (contact time, initial concentration of Cr(VI), biosorbent dosage, and pH,) were modeled by the two decision trees (DTs). Conversely, to equilibrium isotherms and kinetic studies, DT of fungal biomass had lower errors compared to DT of melanin. Lately, the DTs improved the efficacy of the Cr(VI) removal process, thus introducing complementary and alternative solutions to equilibrium isotherms and kinetic studies. The Cr(VI) biosorption onto the biosorbents was confirmed and elucidated through FTIR, SEM, and EDX investigations. Conclusively, this is the first report study attaining the biosorption of Cr(VI) by biomass of <i>A</i>. <i>pullulans</i> and its extracellular melanin among equilibrium isotherms, kinetic study, and algorithmic decision tree modeling. |
| first_indexed | 2024-03-10T22:11:20Z |
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| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T22:11:20Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Polymers |
| spelling | doaj.art-5f151f57dc8d499980f39cc7189acd172023-11-19T12:35:20ZengMDPI AGPolymers2073-43602023-09-011518375410.3390/polym15183754A Comparative Study of Cr(VI) Sorption by <i>Aureobasidium pullulans</i> AKW Biomass and Its Extracellular Melanin: Complementary Modeling with Equilibrium Isotherms, Kinetic Studies, and Decision Tree ModelingHala Fakhry0Abeer A. Ghoniem1Fatimah O. Al-Otibi2Yosra A. Helmy3Mohammed S. El Hersh4Khaled M. Elattar5WesamEldin I. A. Saber6Ashraf Elsayed7National Institute of Oceanography and Fisheries (NIOF), Cairo 11865, EgyptMicrobial Activity Unit, Department of Microbiology, Soils, Water and Environment Research Institute, Agricultural Research Center, Giza 12619, EgyptBotany and Microbiology Department, Faculty of Science, King Saud University, Riyadh 11451, Saudi ArabiaDepartment of Veterinary Science, Martin-Gatton College of Agriculture, Food, and Environment, University of Kentucky, Lexington, KY 40546, USAMicrobial Activity Unit, Department of Microbiology, Soils, Water and Environment Research Institute, Agricultural Research Center, Giza 12619, EgyptUnit of Genetic Engineering and Biotechnology, Faculty of Science, Mansoura University, Mansoura 35516, EgyptMicrobial Activity Unit, Department of Microbiology, Soils, Water and Environment Research Institute, Agricultural Research Center, Giza 12619, EgyptBotany Department, Faculty of Science, Mansoura University, Mansoura 35516, EgyptMelanin as a natural polymer is found in all living organisms, and plays an important role in protecting the body from harmful UV rays from the sun. The efficiency of fungal biomass (<i>Aureobasidium pullulans</i>) and its extracellular melanin as Cr(VI) biosorbents was comparatively considered. The efficiency of Cr(VI) biosorption by the two sorbents used was augmented up to 240 min. The maximum sorption capacities were 485.747 (fungus biomass) and 595.974 (melanin) mg/g. The practical data were merely fitted to both Langmuir and Freundlich isotherms. The kinetics of the biosorption process obeyed the pseudo-first-order. Melanin was superior in Cr(VI) sorption than fungal biomass. Furthermore, four independent variables (contact time, initial concentration of Cr(VI), biosorbent dosage, and pH,) were modeled by the two decision trees (DTs). Conversely, to equilibrium isotherms and kinetic studies, DT of fungal biomass had lower errors compared to DT of melanin. Lately, the DTs improved the efficacy of the Cr(VI) removal process, thus introducing complementary and alternative solutions to equilibrium isotherms and kinetic studies. The Cr(VI) biosorption onto the biosorbents was confirmed and elucidated through FTIR, SEM, and EDX investigations. Conclusively, this is the first report study attaining the biosorption of Cr(VI) by biomass of <i>A</i>. <i>pullulans</i> and its extracellular melanin among equilibrium isotherms, kinetic study, and algorithmic decision tree modeling.https://www.mdpi.com/2073-4360/15/18/3754artificial intelligencebiosorptionfungal biomasswater treatmentheavy metals |
| spellingShingle | Hala Fakhry Abeer A. Ghoniem Fatimah O. Al-Otibi Yosra A. Helmy Mohammed S. El Hersh Khaled M. Elattar WesamEldin I. A. Saber Ashraf Elsayed A Comparative Study of Cr(VI) Sorption by <i>Aureobasidium pullulans</i> AKW Biomass and Its Extracellular Melanin: Complementary Modeling with Equilibrium Isotherms, Kinetic Studies, and Decision Tree Modeling Polymers artificial intelligence biosorption fungal biomass water treatment heavy metals |
| title | A Comparative Study of Cr(VI) Sorption by <i>Aureobasidium pullulans</i> AKW Biomass and Its Extracellular Melanin: Complementary Modeling with Equilibrium Isotherms, Kinetic Studies, and Decision Tree Modeling |
| title_full | A Comparative Study of Cr(VI) Sorption by <i>Aureobasidium pullulans</i> AKW Biomass and Its Extracellular Melanin: Complementary Modeling with Equilibrium Isotherms, Kinetic Studies, and Decision Tree Modeling |
| title_fullStr | A Comparative Study of Cr(VI) Sorption by <i>Aureobasidium pullulans</i> AKW Biomass and Its Extracellular Melanin: Complementary Modeling with Equilibrium Isotherms, Kinetic Studies, and Decision Tree Modeling |
| title_full_unstemmed | A Comparative Study of Cr(VI) Sorption by <i>Aureobasidium pullulans</i> AKW Biomass and Its Extracellular Melanin: Complementary Modeling with Equilibrium Isotherms, Kinetic Studies, and Decision Tree Modeling |
| title_short | A Comparative Study of Cr(VI) Sorption by <i>Aureobasidium pullulans</i> AKW Biomass and Its Extracellular Melanin: Complementary Modeling with Equilibrium Isotherms, Kinetic Studies, and Decision Tree Modeling |
| title_sort | comparative study of cr vi sorption by i aureobasidium pullulans i akw biomass and its extracellular melanin complementary modeling with equilibrium isotherms kinetic studies and decision tree modeling |
| topic | artificial intelligence biosorption fungal biomass water treatment heavy metals |
| url | https://www.mdpi.com/2073-4360/15/18/3754 |
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