β-Cyclodextrin-grafted TEMPO-oxidized cellulose nanofibers for sustained release of essential oil
In: Journal of Materials Science Journal of Materials Science, Springer Verlag, 2017, 52 (7), pp.3849-3861. ⟨10.1007/s10853-016-0644-7⟩; (2017-04-01)
Online
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Zugriff:
International audience; The present investigation deals with the development and characterization of a new controlled release packaging system for food. Novel sustained system was developed by direct grafting of beta-cyclodextrin (βCD) on the carboxyl groups of TEMPO-oxidized cellulose nanofibers (TEMPO-CNF) in aqueous solution and without using any spacer. Carvacrol, an aromatic essential oil component, was then entrapped in the ensued CD-grafted TEMPO-CNF. Successful functionalization of TEMPO-CNF was confirmed by conductometric titration, Fourier Transform Infrared Spectroscopy, and gravimetric analyses. The βCD-grafted TEMPO-CNF films exhibited sustained release of carvacrol over 150 h before reaching the equilibrium in water. Antimicrobial activity of carvacrol against Bacillus subtilis was increased (or improved by 47 h) from 3 h when using TEMPO-CNF to around (or against) 50 h when using CD-grafted TEMPO-CNF. These promising results pave the way for the development of new bio-based controlled release packaging materials with efficient antibacterial activity.
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β-Cyclodextrin-grafted TEMPO-oxidized cellulose nanofibers for sustained release of essential oil
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Autor/in / Beteiligte Person: | Bras, Julien ; Lavoine, Nathalie ; Saini, Seema ; Mohamed Naceur Belgacem ; Quinot, Deborah ; Laboratoire Génie des procédés papetiers (LGP2) ; Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ) ; Université Grenoble Alpes (UGA)-Université Grenoble Alpes (UGA) ; The University of Tokyo (UTokyo) |
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Quelle: | Journal of Materials Science Journal of Materials Science, Springer Verlag, 2017, 52 (7), pp.3849-3861. ⟨10.1007/s10853-016-0644-7⟩; (2017-04-01) |
Veröffentlichung: | HAL CCSD, 2017 |
Medientyp: | unknown |
ISSN: | 0022-2461 (print) ; 1573-4803 (print) |
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