دورية أكاديمية
Production of highly antioxidant lignin nanoparticles from a hardwood technical lignin.
| العنوان: | Production of highly antioxidant lignin nanoparticles from a hardwood technical lignin. |
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| المؤلفون: | Pavaneli G; Department of Chemistry, Federal University of Paraná, P.O. Box 19032, Curitiba, PR 81531-980, Brazil., da Silva TA; Department of Chemistry, Federal University of Paraná, P.O. Box 19032, Curitiba, PR 81531-980, Brazil., Zawadzki SF; Department of Chemistry, Federal University of Paraná, P.O. Box 19032, Curitiba, PR 81531-980, Brazil., Sassaki GL; Department of Biochemistry and Molecular Biology, Federal University of Paraná, P.O. Box 19046, Curitiba, PR 81531-980, Brazil., de Freitas RA; Department of Pharmacy, Federal University of Paraná, P.O. Box 19005, Curitiba, PR 80210-170, Brazil., Ramos LP; Department of Chemistry, Federal University of Paraná, P.O. Box 19032, Curitiba, PR 81531-980, Brazil. Electronic address: luiz.ramos@ufpr.br. |
| المصدر: | International journal of biological macromolecules [Int J Biol Macromol] 2024 Feb; Vol. 257 (Pt 1), pp. 128612. Date of Electronic Publication: 2023 Dec 07. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Country of Publication: Netherlands NLM ID: 7909578 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-0003 (Electronic) Linking ISSN: 01418130 NLM ISO Abbreviation: Int J Biol Macromol Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: Amsterdam : Elsevier Original Publication: Guildford, Eng., IPC Science and Technology Press. |
| مواضيع طبية MeSH: | Antioxidants*/chemistry , Nanoparticles*/chemistry, Lignin/chemistry ; Solvents ; Water |
| مستخلص: | Eucalypt kraft lignin isolated in a LignoBoost™ pilot plant was characterized by GC-MS, ICP-OES, DSC, HPSEC, 31 P NMR, and HSQC 2D-NMR to be used without any further processing to produce lignin nanoparticles (LNPs) by nanoprecipitation. Tetrahydrofuran (THF) was used as a solvent, and water as a non-solvent. Microscopic analysis (TEM) showed that LNPs were regularly spherical with some hollow particles dispersed in-between, and sizes were tunable by changing the solvent dripping rate onto the non-solvent. LNP particle sizes had a bimodal distribution, with the largest population having an average apparent hydrodynamic diameter ranging from 105.6 to 75.6 nm. Colloidal dispersions of LNPs in water presented good stability in different dilutions without significant size changes upon storage at pH close to neutral for as long as 45 days. Zeta potentials around -40 mV were obtained for LNP suspensions at pH ranging from 7 to 9. The high carbohydrate content (circa 10 % on a dry basis, mostly xylans) of the lignin precursor did not interfere in LNP formation, whose antioxidant activity was expressive as demonstrated by the ABTS assay at pH 7.4, with an EC Competing Interests: Declaration of competing interest Luiz Pereira Ramos reports financial support was provided by National Council for Scientific and Technological Development. Giuliana Pavaneli reports financial support was provided by Coordination of Higher Education Personnel Improvement. Nothing to declare. (Copyright © 2023 Elsevier B.V. All rights reserved.) |
| فهرسة مساهمة: | Keywords: Antioxidant activity; Eucalypt Kraft lignin; Nanoparticles |
| المشرفين على المادة: | 0 (Antioxidants) 9005-53-2 (Lignin) 0 (Solvents) 059QF0KO0R (Water) |
| تواريخ الأحداث: | Date Created: 20231209 Date Completed: 20240126 Latest Revision: 20240126 |
| رمز التحديث: | 20240126 |
| DOI: | 10.1016/j.ijbiomac.2023.128612 |
| PMID: | 38070366 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1879-0003 |
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| DOI: | 10.1016/j.ijbiomac.2023.128612 |