Endoglucanase pretreatment aids in isolating tailored-cellulose nanofibrils combining energy saving and high-performance packaging (2023)
- Authors:
- USP affiliated authors: ARANTES, VALDEIR - EEL ; CHAVES, BRUNO LAS-CASAS - EEL
- Unidade: EEL
- DOI: 10.1016/j.ijbiomac.2023.125057
- Subjects: BIOQUÍMICA; BIOTECNOLOGIA; BIOLOGIA MOLECULAR
- Keywords: Cellulose nanofibrils; Endoglucanase; Mechanical defibrillation; Packaging
- Agências de fomento:
- Language: Inglês
- Abstract: Cellulose nanofibrils (CNFs) have emerged as a potential alternative to synthetic polymers in packaging applications owing to their oxygen and grease barrier performance, as well as their strong mechanical properties. However, the performance of CNF films relies on the inherent characteristics of fibers, which undergo changes during the CNF isolation process. Understanding these variations in characteristics during CNF isolation is crucial for tailoring CNF film properties to achieve optimum performance in packaging applications. In this study, CNFs were isolated by endoglucanase-assisted mechanical ultra-refining. The alterations in the intrinsic characteristics of CNFs and their impact on CNF films were systematically investigated by considering the degree of defibrillation, enzyme loading, and reaction time through a design of experiments. Enzyme loading had a significant influence on the crystallinity index, crystallite size, surface area, and viscosity. Meanwhile, the degree of defibrillation greatly affected the aspect ratio, degree of polymerization, and particle size. CNF films prepared from CNFs isolated under two optimized scenarios (casting and coating applications) exhibited remarkable properties, including high thermal stability (approximately 300 ◦C), high tensile strength (104 – 113 MPa), excellent oil resistance (kit n◦12), and low oxygen transmission rate (1.00 – 3.17 cc⋅m− 2 .day− 1 ). Therefore, endoglucanase pretreatment can aid in obtaining CNFs with lower energy consumption, resulting in films that possess higher transmittance, superior barrier performance, and reduced surface wettability compared to control samples without enzymatic pretreatment and other unmodified CNF films reported in the literature, all while maintaining mechanical and thermal performance without significant loss.
- Imprenta:
- Publisher: Elsevier
- Publisher place: Colorado - USA
- Date published: 2023
- Source:
- Título do periódico: International journal of biological macromolecules
- ISSN: 0141-8130
- Volume/Número/Paginação/Ano: v.242, part.4, p.1-15, art. n.125057, 2023
- Este periódico é de assinatura
- Este artigo NÃO é de acesso aberto
- Cor do Acesso Aberto: closed
-
ABNT
CHAVES, Bruno Las Casas e ARANTES, Valdeir. Endoglucanase pretreatment aids in isolating tailored-cellulose nanofibrils combining energy saving and high-performance packaging. International journal of biological macromolecules, v. 242, n. art. 125057, p. 1-15, 2023Tradução . . Disponível em: https://doi.org/10.1016/j.ijbiomac.2023.125057. Acesso em: 27 abr. 2024. -
APA
Chaves, B. L. C., & Arantes, V. (2023). Endoglucanase pretreatment aids in isolating tailored-cellulose nanofibrils combining energy saving and high-performance packaging. International journal of biological macromolecules, 242( art. 125057), 1-15. doi:10.1016/j.ijbiomac.2023.125057 -
NLM
Chaves BLC, Arantes V. Endoglucanase pretreatment aids in isolating tailored-cellulose nanofibrils combining energy saving and high-performance packaging [Internet]. International journal of biological macromolecules. 2023 ;242( art. 125057): 1-15.[citado 2024 abr. 27 ] Available from: https://doi.org/10.1016/j.ijbiomac.2023.125057 -
Vancouver
Chaves BLC, Arantes V. Endoglucanase pretreatment aids in isolating tailored-cellulose nanofibrils combining energy saving and high-performance packaging [Internet]. International journal of biological macromolecules. 2023 ;242( art. 125057): 1-15.[citado 2024 abr. 27 ] Available from: https://doi.org/10.1016/j.ijbiomac.2023.125057 - Effect of chemical treatment of pineapple crown fiber in the production, chemical composition, crystalline structure, thermal stability and thermal degradation kinetic properties of cellulosic materials.
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- Workshop de Biotecnologia - WorkBiotec, 2
- Single-Step Fiber Pretreatment with Monocomponent Endoglucanase: Defibrillation Energy and Cellulose Nanofibril Quality.
- A review on commercial-scale high-value products that can be produced alongside cellulosic ethanol
- Kinetic changes in cellulose properties during defibrillation into microfibrillated cellulose and cellulose nanofibrils by ultra-refining.
- Xylanase increases the selectivity of the enzymatic hydrolysis with endoglucanase to produce cellulose nanocrystals with improved properties
Informações sobre o DOI: 10.1016/j.ijbiomac.2023.125057 (Fonte: oaDOI API)
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