Development of a phosphorous-based biorefinery process for producing lignocellulosic functional materials from coconut wastes.

Autor: de Sousa Nascimento L; Departament of Research, Extension and Production, Federal Institute of Education, Science and Technology of Ceará, 63503-790 Iguatu, CE, Brazil., Melo Nascimento RJ; Departament of Research, Extension and Production, Federal Institute of Education, Science and Technology of Ceará, 63503-790 Iguatu, CE, Brazil., da Mata AKA; Departament of Research, Extension and Production, Federal Institute of Education, Science and Technology of Ceará, 63503-790 Iguatu, CE, Brazil., Felipe VTA; Departament of Research, Extension and Production, Federal Institute of Education, Science and Technology of Ceará, 63503-790 Iguatu, CE, Brazil., Araújo RF; Departament of Research, Extension and Production, Federal Institute of Education, Science and Technology of Ceará, 63503-790 Iguatu, CE, Brazil., Bezerra LCA; Departament of Research, Extension and Production, Federal Institute of Education, Science and Technology of Ceará, 63503-790 Iguatu, CE, Brazil., Almeida JS; Departament of Chemical Engineering, Federal University of Ceará, 60455-760 Fortaleza, CE, Brazil., Mattos ALA; Embrapa Agroindústria Tropical, Rua Dra Sara Mesquita, 2270, Planalto Pici, 60511-110 Fortaleza, CE, Brazil., Uchoa DEA; Departament of Organic and Inorganic Chemistry, Federal University of Ceará, 60440-900 Fortaleza, CE, Brazil., de Novais LMR; NMR Lab, Department of Chemistry, Federal University of Paraná, Curitiba 81530-900, PR, Brazil., D'Oca CDRM; NMR Lab, Department of Chemistry, Federal University of Paraná, Curitiba 81530-900, PR, Brazil., Avelino F; Departament of Research, Extension and Production, Federal Institute of Education, Science and Technology of Ceará, 63503-790 Iguatu, CE, Brazil. Electronic address: francisco.avelino@ifce.edu.br.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2023 Jun 01; Vol. 239, pp. 124300. Date of Electronic Publication: 2023 Apr 01.
DOI: 10.1016/j.ijbiomac.2023.124300
Abstrakt: This work aimed to develop a phosphorous-based biorefinery process for obtaining phosphorylated lignocellulosic fractions in a one-pot protocol from coconut fiber. Natural coconut fiber (NCF) was mixed with 85 % m/m H 3 PO 4 at 70 °C for 1 h to yield the modified coconut fiber (MCF), aqueous phase (AP), and coconut fiber lignin (CFL). MCF was characterized by its TAPPI, FTIR, SEM, EDX, TGA, WCA, and P content. AP was characterized regarding its pH, conductivity, glucose, furfural, HMF, total sugars and ASL contents. CFL structure was evaluated by FTIR, 1 H, 31 P and 1 H- 13 C HSQC NMR, TGA and P content and was compared to that of milled wood lignin (MWL). It was observed that MCF and CFL were phosphorylated during the pulping (0.54 and 0.23 % wt., respectively), while AP has shown high sugar levels, low inhibitor content, and some remaining phosphorous. The phosphorylation of MCF and CFL also showed an enhancement of their thermal and thermo-oxidative properties. The results show that a platform of functional materials such as biosorbents, biofuels, flame retardants, and biocomposites can be created through an eco-friendly, simple, fast, and novel biorefinery process.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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