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- W4210880280 abstract "In nature, white and brown rot fungi produce extracellular enzymes capable of breaking down lignin. The better knowledge of these enzymes allowed to know the details of the active center, on which resides an Iron (II) complex of Protoporphyrin IX. The accepted mechanism involves the use of hydrogen peroxide to form high valence oxo species, which generate highly reactive oxo-ferryl free radicals. Its transfer to lignin leads to its destruction by radical initiated break of the connections between the phenylpropane units. Synthetic methods capable of preparing porphyrin structures with the structural requirements seen in the active center of ligninases are available, while at the same time allowing the addition of groups that mimic the characteristics of the active center provided by means of protein. In this way, porphyrins were prepared that allow to imitate the delignification of wood samples. An effective system, which has taken into accounts the intermediates formed in the reaction mechanism, tries to preserve the catalyst stability and high turnover. The application of this system in the delignification of wood samples from Pinus Pinaster and Eucaliptus Globulus was tested, with results that show to be effective in the delignification of the samples." @default.
- W4210880280 created "2022-02-09" @default.
- W4210880280 creator A5020661058 @default.
- W4210880280 date "2022-02-08" @default.
- W4210880280 modified "2023-09-25" @default.
- W4210880280 title "Biomass Delignification with Biomimetic Enzyme Systems" @default.
- W4210880280 doi "https://doi.org/10.1201/9780429340543-3" @default.
- W4210880280 hasPublicationYear "2022" @default.
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