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Differential activity of lytic polysaccharide monooxygenases on celluloses of different crystallinity. Effectiveness in the sustainable production of cellulose nanofibrils

Carbohydrate polymers, 2019-03, Vol.207, p.59 [Peer Reviewed Journal]

Copyright © 2018 Elsevier Ltd. All rights reserved. ;Attribution-NonCommercial-NoDerivs 3.0 Spain info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/3.0/es/ ;ISSN: 0144-8617 ;EISSN: 1879-1344 ;DOI: 10.1016/j.carbpol.2018.11.076 ;PMID: 30600044

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Title:
Differential activity of lytic polysaccharide monooxygenases on celluloses of different crystallinity. Effectiveness in the sustainable production of cellulose nanofibrils
Author: Valenzuela, Susana V ; Valls, Cristina ; Schink, Viviane ; Sánchez, Daniel ; Roncero, M Blanca ; Diaz, Pilar ; Martínez, Josefina ; Pastor, F I Javier
Subjects: Cellulases - chemistry ; Cellulose ; Cellulose - chemistry ; Cellulose fibers ; Cel·lulosa ; Crystallinity ; Crystallization ; Enginyeria paperera ; Enzyme Assays ; Fibres de cel·lulosa ; Flax - chemistry ; Hydrolysis ; Investigació ; LPMO ; Mixed Function Oxygenases - chemistry ; Monooxygenase ; Monooxygenases ; Nanofibers ; Nanofibers - chemistry ; Nanofibres ; Nanofibrils ; NFC ; Paenibacillus - enzymology ; Polisacàrids ; Polysaccharide ; Primeres matèries papereres ; SamLPMO10C ; Streptomyces - enzymology ; Substrate Specificity ; Textiles ; Àrees temàtiques de la UPC
Is Part Of: Carbohydrate polymers, 2019-03, Vol.207, p.59
Description: A series of cellulosic substrates has been produced, treated with lytic polysaccharide monooxygenase (LPMO) from Streptomyces ambofaciens (SamLPMO10C), and analyzed by high performance anion exchange chromatography (HPAEC) with pulsed amperometric detection (PAD). The activity of the bacterial LPMO showed high variability depending on the origin and degree of crystallinity of the substrate. Additionally, we tested the effectiveness of SamLPMO10C in the nanofibrillation of flax, a high crystalline agricultural fiber, as a single pretreatment or in combination with cellulases. All pretreatments were followed by a mechanical defibrillation by high-pressure homogenization (HPH) to obtain cellulose nanofibrils (NFC). The combined LPMO-cellulase treatment showed higher fibrillation yield, optical transmittance and carboxylate content than control reactions. Therefore, it could be explored as a promising green alternative to reduce the energy consumption in the production of NFC. To our knowledge, this is the first study reporting the effect of a bacterial LPMO in nanocellulose production.
Publisher: England
Language: English
Identifier: ISSN: 0144-8617
EISSN: 1879-1344
DOI: 10.1016/j.carbpol.2018.11.076
PMID: 30600044
Source: Recercat

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Differential activity of lytic polysaccharide monooxygenases on celluloses of different crystallinity. Effectiveness in the sustainable production of cellulose nanofibrils

Copyright © 2018 Elsevier Ltd. All rights reserved. ;Attribution-NonCommercial-NoDerivs 3.0 Spain info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/3.0/es/ ;ISSN: 0144-8617 ;EISSN: 1879-1344 ;DOI: 10.1016/j.carbpol.2018.11.076 ;PMID: 30600044

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