| DOI | Trouver le DOI : https://doi.org/10.1016/j.indcrop.2013.09.029 |
|---|
| Auteur | Rechercher : Xu, Yali1; Rechercher : Salmi, Jani; Rechercher : Kloser, Elisabeth; Rechercher : Perrin, Florence2; Rechercher : Grosse, Stephan1; Rechercher : Denault, Johanne3; Rechercher : Lau, Peter C. K.1 |
|---|
| Affiliation | - Conseil national de recherches du Canada. Développement des cultures et des ressources aquatiques
- Conseil national de recherches du Canada
- Conseil national de recherches du Canada. Automobile et les transports de surface
|
|---|
| Format | Texte, Article |
|---|
| Sujet | Aggregated networks; Endoglucanase treatments; Endoglucanases; Fungal enzymes; Nanocrystalline cellulose; Nanocrystalline cellulose(NCC); Physical pre-treatment; Thermostable enzymes; Aspergillus; Atomic force microscopy; Cellulose derivatives; Cloning; Enzymes; Flax; Hemp fibers; Linen; Yarn; Fibers; assessment method; cellulose; crystallinity; enzyme activity; feasibility study; fungus; height; physicochemical property; temperature effect; Cellulose Derivatives; Endo Enzymes; Fibers; Flax; Glucanase; Linen; Yarn |
|---|
| Résumé | Whereas straw management presents a continuing challenge among farmers, tremendous opportunities may exist within the natural fibers in terms of value- added products or chemicals. This research provides the first assessment and demonstration of feasibility of an enzyme-assisted production of nanocrystalline cellulose (NCC) from hemp and flax fibers. A newly cloned endoglucanase (AoEG), derived from Aspergillus oryzae and characterized to be a thermostable enzyme with a half-life of 50. h at 50. °C was used for the hydrolysis. Atomic force microscopy (AFM) imaging of NCC produced from acid swollen cellulose and flax fibers indicated that they form aggregated network, showing rod-like nanofibrils of about 10. nm in height, and 200. nm in length. The yield of NCC using physical pretreatment only or combined physical-chemical pretreatment was compared. The highest yield of NCC was obtained under the conditions of 300. mg of flax fiber treated by 100. IU enzyme at 50. °C for 24. h after pretreatment of the fibers by sonication-microwave in 2% NaOH solution. |
|---|
| Date de publication | 2013-09-22 |
|---|
| Dans | |
|---|
| Langue | anglais |
|---|
| Publications évaluées par des pairs | Oui |
|---|
| Numéro du CNRC | NRCC 55846 |
|---|
| Numéro NPARC | 21269628 |
|---|
| Exporter la notice | Exporter en format RIS |
|---|
| Signaler une correction | Signaler une correction (s'ouvre dans un nouvel onglet) |
|---|
| Identificateur de l’enregistrement | 821487fd-0e92-4eb0-972e-8bdc630b4e12 |
|---|
| Enregistrement créé | 2013-12-13 |
|---|
| Enregistrement modifié | 2020-04-22 |
|---|
