Unlocking the potential of Opuntia species mucilage in chemistry

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dc.contributor.authorMartin, Cristina del Mar Garcia
dc.contributor.authorRamirez, Oscar
dc.contributor.authorBonardd, Sebastian
dc.contributor.authorLopez-Darias, Marta
dc.contributor.authorFranco, Lourdes
dc.contributor.author'Rabet, Yassine M.
dc.contributor.authorKhwaldia, Khaoula
dc.contributor.authorDiaz, David Diaz
dc.date.accessioned2025-01-20T16:16:49Z
dc.date.available2025-01-20T16:16:49Z
dc.date.issued2024
dc.description.abstractHerein, 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 mu L of KAuCl4 and was carried out at 80 degrees 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 kapp of 97 % under white light and a decrease of 24.8 % in its activation energy.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.ijbiomac.2024.131647
dc.identifier.eissn1879-0003
dc.identifier.issn0141-8130
dc.identifier.urihttps://doi.org/10.1016/j.ijbiomac.2024.131647
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/90566
dc.identifier.wosidWOS:001236387500001
dc.language.isoen
dc.revistaInternational journal of biological macromolecules
dc.rightsacceso restringido
dc.subjectMucilage
dc.subjectOpuntia species
dc.subjectGold nanoparticles
dc.subjectCatalysis
dc.subjectPlasmon
dc.titleUnlocking the potential of Opuntia species mucilage in chemistry
dc.typeartículo
dc.volumen268
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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