Unlocking the potential of Opuntia species mucilage in chemistry.

Autor: Del Mar García Martín C; Departamento de Química Orgánica Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 3, La Laguna 38206, Tenerife, Spain; Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 2, La Laguna 38206, Tenerife, Spain., Ramírez O; Departamento de Química Orgánica Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 3, La Laguna 38206, Tenerife, Spain; Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 2, La Laguna 38206, Tenerife, Spain; Departamento de Química Física, Facultad de Química y de Farmacia, Pontificia Universidad Católica de Chile, Casilla 302, Correo 22, Santiago, Chile., Bonardd S; Centro de Física de Materiales (CSIC, UPV/EHU)-Materials Physics Center (MPC), 20018 Donostia-San Sebastián, Spain; Department of Polymers and Advanced Materials: Physics, Chemistry and Technology, University of the Basque Country UPV/EHU, 20018 Donostia-San Sebastián, Spain., López-Darias M; IPNA-CSIC, Avda. Astrofísico Fco. Sánchez 3, 38206 San Cristóbal de La Laguna, Tenerife, Spain., Franco L; Departament d'Enginyeria Quimica, Universitat Politecnica de Catalunya, Escola d'Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain; Barcelona Research Center for Multiscale Science and Engineering, Universitat Politecnica de Catalunya, Escola d'Enginyeria de Barcelona Est-EEBE, 08019 Barcelona, Spain., M'Rabet Y; Laboratoire des Substances Naturelles, Institut National de Recherche et d'Analyse Physico-chimique (INRAP), Biotech Pole, Sidi Thabet 2020, Tunisia., Khwaldia K; Laboratoire des Substances Naturelles, Institut National de Recherche et d'Analyse Physico-chimique (INRAP), Biotech Pole, Sidi Thabet 2020, Tunisia., Díaz Díaz D; Departamento de Química Orgánica Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 3, La Laguna 38206, Tenerife, Spain; Instituto Universitario de Bio-Orgánica Antonio González, Universidad de La Laguna, Avda. Astrofísico Francisco Sánchez 2, La Laguna 38206, Tenerife, Spain. Electronic address: ddiazdiaz@ull.edu.es.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2024 May; Vol. 268 (Pt 2), pp. 131647. Date of Electronic Publication: 2024 Apr 21.
DOI: 10.1016/j.ijbiomac.2024.131647
Abstrakt: Herein, we describe a detailed protocol to extract the mucilage from different species of the genus Opuntia spp. (i.e., Opuntia Ficus (OFi), Opuntia Dillenii (ODi) and Opuntia Robusta (ORo)). The extracted mucilage was characterized by NMR, FTIR-ATR, HPLC, and TGA. OFi was found to have the highest phenolic content, 7.84 ± 1.93 mg catechol/g mucilage. The mucilage from the three species were characterized by having a high content of monosaccharides, being mannose and glucose the most abundant components (ca. 48-73 % and 23-35 %, respectively). In the context of biomass revalorization, the mucilage was proven to serve as a reducing and stabilizing agent in the synthesis of gold nanoparticles (AuNP/mucilage). The synthesis was optimized with a mucilage concentration of 2 mg/mL using 12.5 μL of KAuCl 4 and was carried out at 80 °C for 90 min. This protocol afforded spherical nanoparticles with an average size of 9.7 ± 4.0 nm that were stable for at least 14 days, as demonstrated by TEM. Synthesized AuNP/mucilage was evaluated as a plasmonic catalyst for the reduction of 4-nitrophenol as model reaction, showing a considerable enhancement in its k app of 97 % under white light and a decrease of 24.8 % in its activation energy.
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 © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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