english Icono del idioma   español Icono del idioma  

Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12008/34171 How to cite
Title: Enhancing cellulose nanofibrillation of eucalyptus Kraft pulp by combining enzymatic and mechanical pretreatments
Authors: Cebreiros, Florencia
Seiler, Santiago
Dalli, Sai Swaroop
Lareo, Claudia
Saddler, Jack
Type: Preprint
Keywords: Nanofibrillated cellulose, Enzymatic pretreatment, Xylanase, Swollenin, Ultrasonication
Issue Date: 2021
Abstract: Nanofibrillated cellulose (NFC) extracted from biomass has potential applications in material science and biomedical engineering. In this study, NFC was obtained from bleached eucalyptus Kraft pulp (BEKP) using two commercial enzyme cocktails with cellulolytic and hemicellulolytic activities and non-catalytic protein (swollenin), followed by ultrasonication. This work represents an initial study of the implementation of non-catalytic proteins along with enzymes to extract NFC from biomass. Enzymatic pretreatment was performed to partially remove hemicellulose while enhancing cellulose accessibility for NFC extraction. Cellulase pretreatment with xylanase and swollenin supplementation increased cellulose accessibility and fiber swelling pretreatment with xylanase and swollenin supplementation increased cellulose accessibility and fiber swelling performed for cellulose nanofibrillation resulting in high NFC yields (61-97%), while keeping NFC properties almost unchanged. Through this process, cellulose nanofibers with diameters ranging from 3 nm to 10 nm were effectively isolated from BEKP, which allows to produce high quality NFC for further applications.
Description: Publicado en Cellulose (2021) 28(1): pp.189–206.
Sponsors: ANII_FMV_1_2019_1_156233
Citation: Cebreiros, F., Seiler, S., Dalli, S. y otros. Enhancing cellulose nanofibrillation of eucalyptus Kraft pulp by combining enzymatic and mechanical pretreatments [Preprint] Publicado en : Cellulose 28(1): pp.189–206, 2021. ISSN 0969-0239. DOI: https://doi.org/10.1007/s10570-020-03531-w.
License: Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)
Appears in Collections:Publicaciones académicas y científicas - Instituto de Ingeniería Química

Files in This Item:
File Description SizeFormat  
CSSLS21.pdfPreprint1,14 MBAdobe PDFView/Open


This item is licensed under a Creative Commons License Creative Commons