Catalyst system investigation in biomimetic delignification of oil palm empty fruit bunches
Biomimetic delignification of oil palm empty fruit bunches with the bio-inspired chemical catalyst system was investigated by mimicking the ligninolytic enzyme's redox mediator formation, i.e., Mn3+ and H2O2. The radical hydroxyl formation from the catalyst system was prevented using Mn2+ ions...
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| Language: | English |
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Elsevier
2025-06-01
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| Series: | Case Studies in Chemical and Environmental Engineering |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666016425001306 |
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| author | Nur Rohmah Tirto Prakoso Meiti Pratiwi Tatang Hernas Soerawidjaja |
| author_facet | Nur Rohmah Tirto Prakoso Meiti Pratiwi Tatang Hernas Soerawidjaja |
| author_sort | Nur Rohmah |
| collection | DOAJ |
| description | Biomimetic delignification of oil palm empty fruit bunches with the bio-inspired chemical catalyst system was investigated by mimicking the ligninolytic enzyme's redox mediator formation, i.e., Mn3+ and H2O2. The radical hydroxyl formation from the catalyst system was prevented using Mn2+ ions and suitable ligands. The Mn3+ ion and H2O2 formations were investigated by combining transition metals, suitable ligands, and oxygen from the air. This study aimed to investigate which of the acidic and alkaline environment biomimetic catalyst systems obtained a high delignification degree: Mn2+-Fe2+ solution in malate, lactate, and malate-lactate buffer at pH 4 or 6, and Cu2+-Mn2+ pyrophosphate suspension in triethanolamine and trisodium phosphate solution at pH > 8. The biomimetic delignification experiment was carried out at 100 °C and a solid-to-liquid ratio of 1:20 for 6 hours. The highest delignification degree in acidic and alkaline environment biomimetic catalyst systems was 11.76 % and 67.74 %, respectively. Mn3+, as the primary biomimetic delignification redox mediator was not formed in the acidic catalyst system, but Mn3+ was formed in the alkaline catalyst system. This study facilitates simple operation and faster delignification time than biological delignification. |
| format | Article |
| id | doaj-art-96cb1baef72d404380b98398428eebdd |
| institution | OA Journals |
| issn | 2666-0164 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Chemical and Environmental Engineering |
| spelling | doaj-art-96cb1baef72d404380b98398428eebdd2025-08-20T02:13:07ZengElsevierCase Studies in Chemical and Environmental Engineering2666-01642025-06-011110122310.1016/j.cscee.2025.101223Catalyst system investigation in biomimetic delignification of oil palm empty fruit bunchesNur Rohmah0Tirto Prakoso1Meiti Pratiwi2Tatang Hernas Soerawidjaja3Department of Chemical Engineering, Institut Teknologi Bandung, Bandung 40132, Indonesia; National Research and Innovation Agency, Bandung 40135, IndonesiaDepartment of Chemical Engineering, Institut Teknologi Bandung, Bandung 40132, Indonesia; Corresponding author.Department of Chemical Engineering, Institut Teknologi Bandung, Bandung 40132, Indonesia; Department of Bioenergy Engineering and Chemurgy, Institut Teknologi Bandung, Sumedang 45363, IndonesiaDepartment of Chemical Engineering, Institut Teknologi Bandung, Bandung 40132, Indonesia; Department of Bioenergy Engineering and Chemurgy, Institut Teknologi Bandung, Sumedang 45363, IndonesiaBiomimetic delignification of oil palm empty fruit bunches with the bio-inspired chemical catalyst system was investigated by mimicking the ligninolytic enzyme's redox mediator formation, i.e., Mn3+ and H2O2. The radical hydroxyl formation from the catalyst system was prevented using Mn2+ ions and suitable ligands. The Mn3+ ion and H2O2 formations were investigated by combining transition metals, suitable ligands, and oxygen from the air. This study aimed to investigate which of the acidic and alkaline environment biomimetic catalyst systems obtained a high delignification degree: Mn2+-Fe2+ solution in malate, lactate, and malate-lactate buffer at pH 4 or 6, and Cu2+-Mn2+ pyrophosphate suspension in triethanolamine and trisodium phosphate solution at pH > 8. The biomimetic delignification experiment was carried out at 100 °C and a solid-to-liquid ratio of 1:20 for 6 hours. The highest delignification degree in acidic and alkaline environment biomimetic catalyst systems was 11.76 % and 67.74 %, respectively. Mn3+, as the primary biomimetic delignification redox mediator was not formed in the acidic catalyst system, but Mn3+ was formed in the alkaline catalyst system. This study facilitates simple operation and faster delignification time than biological delignification.http://www.sciencedirect.com/science/article/pii/S2666016425001306Bio-inspired chemical catalyst systemTransition metalSuitable ligandRedox mediatorReactive oxygen species |
| spellingShingle | Nur Rohmah Tirto Prakoso Meiti Pratiwi Tatang Hernas Soerawidjaja Catalyst system investigation in biomimetic delignification of oil palm empty fruit bunches Case Studies in Chemical and Environmental Engineering Bio-inspired chemical catalyst system Transition metal Suitable ligand Redox mediator Reactive oxygen species |
| title | Catalyst system investigation in biomimetic delignification of oil palm empty fruit bunches |
| title_full | Catalyst system investigation in biomimetic delignification of oil palm empty fruit bunches |
| title_fullStr | Catalyst system investigation in biomimetic delignification of oil palm empty fruit bunches |
| title_full_unstemmed | Catalyst system investigation in biomimetic delignification of oil palm empty fruit bunches |
| title_short | Catalyst system investigation in biomimetic delignification of oil palm empty fruit bunches |
| title_sort | catalyst system investigation in biomimetic delignification of oil palm empty fruit bunches |
| topic | Bio-inspired chemical catalyst system Transition metal Suitable ligand Redox mediator Reactive oxygen species |
| url | http://www.sciencedirect.com/science/article/pii/S2666016425001306 |
| work_keys_str_mv | AT nurrohmah catalystsysteminvestigationinbiomimeticdelignificationofoilpalmemptyfruitbunches AT tirtoprakoso catalystsysteminvestigationinbiomimeticdelignificationofoilpalmemptyfruitbunches AT meitipratiwi catalystsysteminvestigationinbiomimeticdelignificationofoilpalmemptyfruitbunches AT tatanghernassoerawidjaja catalystsysteminvestigationinbiomimeticdelignificationofoilpalmemptyfruitbunches |