Fishery waste valorization: Sulfated ZrO2 as a heterogeneous catalyst for chitin and chitosan depolymerization
Chitin and chitosan are abundant unique sources of biologically-fixed nitrogen mainly derived from residues of the fishery productive chain. Their high potential as nitrogen-based highly added-value platform molecules is still largely unexploited and a catalytic way for their valorization would be s...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2022-11-01
|
| Series: | Frontiers in Chemistry |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fchem.2022.1057461/full |
| _version_ | 1798046235022589952 |
|---|---|
| author | Valeria Pappalardo Yassine Remadi Laura Cipolla Nicola Scotti Nicoletta Ravasio Federica Zaccheria |
| author_facet | Valeria Pappalardo Yassine Remadi Laura Cipolla Nicola Scotti Nicoletta Ravasio Federica Zaccheria |
| author_sort | Valeria Pappalardo |
| collection | DOAJ |
| description | Chitin and chitosan are abundant unique sources of biologically-fixed nitrogen mainly derived from residues of the fishery productive chain. Their high potential as nitrogen-based highly added-value platform molecules is still largely unexploited and a catalytic way for their valorization would be strongly desirable within a biorefinery concept. Here we report our results obtained with a series of heterogeneous catalysts in the depolymerization of chitosan and chitin to acetylglucosamine. Copper catalysts supported on SiO2, SiO2–Al2O3, SiO2-ZrO2, ZrO2 and the corresponding bare oxides/mixed oxides were tested, together with a sulfated zirconia system (ZrO2-SO3H) that revealed to be extremely selective towards glucosamine, both for chitosan and chitin, thus giving pretty high yields with respect to the values reported so far (44% and 21%, respectively). The use of a heterogeneous catalyst alone, without the need of any additives or the combination with a mineral acid, makes these results remarkable. |
| first_indexed | 2024-04-11T23:34:27Z |
| format | Article |
| id | doaj.art-55a28171e95e4344bdb5311ecaae1df7 |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-04-11T23:34:27Z |
| publishDate | 2022-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj.art-55a28171e95e4344bdb5311ecaae1df72022-12-22T03:56:59ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462022-11-011010.3389/fchem.2022.10574611057461Fishery waste valorization: Sulfated ZrO2 as a heterogeneous catalyst for chitin and chitosan depolymerizationValeria Pappalardo0Yassine Remadi1Laura Cipolla2Nicola Scotti3Nicoletta Ravasio4Federica Zaccheria5CNR Institute of Chemical Sciences and Technologies “G. Natta”, Milano, ItalyDepartment of Biotechnology and Biosciences, University of Milano—Bicocca, Milano, ItalyDepartment of Biotechnology and Biosciences, University of Milano—Bicocca, Milano, ItalyCNR Institute of Chemical Sciences and Technologies “G. Natta”, Milano, ItalyCNR Institute of Chemical Sciences and Technologies “G. Natta”, Milano, ItalyCNR Institute of Chemical Sciences and Technologies “G. Natta”, Milano, ItalyChitin and chitosan are abundant unique sources of biologically-fixed nitrogen mainly derived from residues of the fishery productive chain. Their high potential as nitrogen-based highly added-value platform molecules is still largely unexploited and a catalytic way for their valorization would be strongly desirable within a biorefinery concept. Here we report our results obtained with a series of heterogeneous catalysts in the depolymerization of chitosan and chitin to acetylglucosamine. Copper catalysts supported on SiO2, SiO2–Al2O3, SiO2-ZrO2, ZrO2 and the corresponding bare oxides/mixed oxides were tested, together with a sulfated zirconia system (ZrO2-SO3H) that revealed to be extremely selective towards glucosamine, both for chitosan and chitin, thus giving pretty high yields with respect to the values reported so far (44% and 21%, respectively). The use of a heterogeneous catalyst alone, without the need of any additives or the combination with a mineral acid, makes these results remarkable.https://www.frontiersin.org/articles/10.3389/fchem.2022.1057461/fullchitinchitosansolid acidsZrO2sulfated catalyst |
| spellingShingle | Valeria Pappalardo Yassine Remadi Laura Cipolla Nicola Scotti Nicoletta Ravasio Federica Zaccheria Fishery waste valorization: Sulfated ZrO2 as a heterogeneous catalyst for chitin and chitosan depolymerization Frontiers in Chemistry chitin chitosan solid acids ZrO2 sulfated catalyst |
| title | Fishery waste valorization: Sulfated ZrO2 as a heterogeneous catalyst for chitin and chitosan depolymerization |
| title_full | Fishery waste valorization: Sulfated ZrO2 as a heterogeneous catalyst for chitin and chitosan depolymerization |
| title_fullStr | Fishery waste valorization: Sulfated ZrO2 as a heterogeneous catalyst for chitin and chitosan depolymerization |
| title_full_unstemmed | Fishery waste valorization: Sulfated ZrO2 as a heterogeneous catalyst for chitin and chitosan depolymerization |
| title_short | Fishery waste valorization: Sulfated ZrO2 as a heterogeneous catalyst for chitin and chitosan depolymerization |
| title_sort | fishery waste valorization sulfated zro2 as a heterogeneous catalyst for chitin and chitosan depolymerization |
| topic | chitin chitosan solid acids ZrO2 sulfated catalyst |
| url | https://www.frontiersin.org/articles/10.3389/fchem.2022.1057461/full |
| work_keys_str_mv | AT valeriapappalardo fisherywastevalorizationsulfatedzro2asaheterogeneouscatalystforchitinandchitosandepolymerization AT yassineremadi fisherywastevalorizationsulfatedzro2asaheterogeneouscatalystforchitinandchitosandepolymerization AT lauracipolla fisherywastevalorizationsulfatedzro2asaheterogeneouscatalystforchitinandchitosandepolymerization AT nicolascotti fisherywastevalorizationsulfatedzro2asaheterogeneouscatalystforchitinandchitosandepolymerization AT nicolettaravasio fisherywastevalorizationsulfatedzro2asaheterogeneouscatalystforchitinandchitosandepolymerization AT federicazaccheria fisherywastevalorizationsulfatedzro2asaheterogeneouscatalystforchitinandchitosandepolymerization |