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Endo-Exoglucanase Synergism for Cellulose Nanofibril Production Assessment and Characterization
A study to produce cellulose nanofibrils (CNF) from kraft cellulose pulp was conducted using a centroid simplex mixture design. The enzyme blend contains 69% endoglucanase and 31% exoglucanase. The central composite rotational design (CCRD) optimized the CNF production process by achieving a higher...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9921176/ https://www.ncbi.nlm.nih.gov/pubmed/36770616 http://dx.doi.org/10.3390/molecules28030948 |
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author | Ramírez Brenes, Ricardo Gonzalo Chaves, Lívia da Silva Bojorge, Ninoska Pereira, Nei |
author_facet | Ramírez Brenes, Ricardo Gonzalo Chaves, Lívia da Silva Bojorge, Ninoska Pereira, Nei |
author_sort | Ramírez Brenes, Ricardo Gonzalo |
collection | PubMed |
description | A study to produce cellulose nanofibrils (CNF) from kraft cellulose pulp was conducted using a centroid simplex mixture design. The enzyme blend contains 69% endoglucanase and 31% exoglucanase. The central composite rotational design (CCRD) optimized the CNF production process by achieving a higher crystallinity index. It thus corresponded to a solid loading of 15 g/L and an enzyme loading of 0.974. Using the Segal formula, the crystallinity index (CrI) of the CNF was determined by X-ray diffraction to be 80.87%. The average diameter of the CNF prepared by enzymatic hydrolysis was 550–600 nm, while the one produced by enzymatic hydrolysis and with ultrasonic dispersion was 250–300 nm. Finally, synergistic interactions between the enzymes involved in nanocellulose production were demonstrated, with Colby factor values greater than one. |
format | Online Article Text |
id | pubmed-9921176 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-99211762023-02-12 Endo-Exoglucanase Synergism for Cellulose Nanofibril Production Assessment and Characterization Ramírez Brenes, Ricardo Gonzalo Chaves, Lívia da Silva Bojorge, Ninoska Pereira, Nei Molecules Article A study to produce cellulose nanofibrils (CNF) from kraft cellulose pulp was conducted using a centroid simplex mixture design. The enzyme blend contains 69% endoglucanase and 31% exoglucanase. The central composite rotational design (CCRD) optimized the CNF production process by achieving a higher crystallinity index. It thus corresponded to a solid loading of 15 g/L and an enzyme loading of 0.974. Using the Segal formula, the crystallinity index (CrI) of the CNF was determined by X-ray diffraction to be 80.87%. The average diameter of the CNF prepared by enzymatic hydrolysis was 550–600 nm, while the one produced by enzymatic hydrolysis and with ultrasonic dispersion was 250–300 nm. Finally, synergistic interactions between the enzymes involved in nanocellulose production were demonstrated, with Colby factor values greater than one. MDPI 2023-01-18 /pmc/articles/PMC9921176/ /pubmed/36770616 http://dx.doi.org/10.3390/molecules28030948 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Ramírez Brenes, Ricardo Gonzalo Chaves, Lívia da Silva Bojorge, Ninoska Pereira, Nei Endo-Exoglucanase Synergism for Cellulose Nanofibril Production Assessment and Characterization |
title | Endo-Exoglucanase Synergism for Cellulose Nanofibril Production Assessment and Characterization |
title_full | Endo-Exoglucanase Synergism for Cellulose Nanofibril Production Assessment and Characterization |
title_fullStr | Endo-Exoglucanase Synergism for Cellulose Nanofibril Production Assessment and Characterization |
title_full_unstemmed | Endo-Exoglucanase Synergism for Cellulose Nanofibril Production Assessment and Characterization |
title_short | Endo-Exoglucanase Synergism for Cellulose Nanofibril Production Assessment and Characterization |
title_sort | endo-exoglucanase synergism for cellulose nanofibril production assessment and characterization |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9921176/ https://www.ncbi.nlm.nih.gov/pubmed/36770616 http://dx.doi.org/10.3390/molecules28030948 |
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