Production of cellulose nanocrystals from sugarcane bagasse fibers and pith

Oliveira, Franciéli Borges de; Bras, Julien; Pimenta, Marcos de Mattos; Curvelo, Antônio Aprígio da Silva; Belgacem, Mohamed Naceur

doi:10.1016/j.indcrop.2016.04.064

Cited by 179 publications

(76 citation statements)

References 32 publications

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“…In addition, the diameters of both CNCs and CNFs were below 100 nm, which is in line with the existing size requirements for nanocellulose. The results obtained in our study were similar to those reported by predecessors [30]. The oxygen transmission rates (OTRs) of the films were determined by the pressure method reported by Gali et al [29], using an oxygen transmission instrument (Brugger GDP-C, Schramberg, Germany) with a low chamber vacuum and vacuum time of 5 min.…”

Section: Atomic Force Microscopy (Afm) Testsupporting

confidence: 90%

Effects of Cellulose Nanocrystals and Cellulose Nanofibers on the Structure and Properties of Polyhydroxybutyrate Nanocomposites

et al. 2019

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One of the major obstacles for polyhydroxybutyrate (PHB), a biodegradable and biocompatible polymer, in commercial applications is its poor elongation at break (~3%). In this study, the effects of nanocellulose contents and their types, including cellulose nanocrystals (CNCs) and cellulose nanofibers (CNFs) on the crystallization, thermal, and mechanical properties of PHB composites were systematically compared. We explored the toughening mechanisms of PHB by adding CNCs and cellulose CNFs. The results showed that when the morphology of bagasse nanocellulose was rod-like and its content was 1 wt %, the toughening modification of PHB was the best. Compared with pure PHB, the elongation at break and Young’s modulus increased by 91.2% and 18.4%, respectively. Cellulose nanocrystals worked as heterogeneous nucleating agents in PHB and hence reduced its crystallinity and consequently improved the toughness of PHB. This simple approach could potentially be explored as a strategy to extend the possible applications of this biopolymer in packaging fields.

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Section: Atomic Force Microscopy (Afm) Testsupporting

confidence: 90%

Effects of Cellulose Nanocrystals and Cellulose Nanofibers on the Structure and Properties of Polyhydroxybutyrate Nanocomposites

et al. 2019

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“…Both the SB and AP fibers had higher content of insoluble lignin and hemicelluloses. Oliveira et al reported major cellulose and hemicellulose content for SB (45 ± 0.2% and 29.9 ± 0.2%, respectively) than the value obtained herein. This difference might have been due to the sugarcane growing conditions and variety.…”

Section: Resultscontrasting

confidence: 63%

“…The soluble lignin content of the AP fibers was significantly higher as compared with the soluble lignin content of the SB fibers (Tukey's test, P < 0.05). The total lignin content of the AP fibers was 21.71%, which was higher than the values of 11% to 18% reported by Fuentes‐Alventosa et al and Chen et al The total lignin content (19.43%) of the SB fibers was close to the value reported by Oliveira et al (21.2%).…”

Section: Resultssupporting

confidence: 42%

The addition of sugarcane bagasse and asparagus peel enhances the properties of sweet potato starch foams

et al. 2019

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The agro‐industrial wastes, sugarcane bagasse (SB) and asparagus peel (AP), were used to enhance the properties of biodegradable foam trays based on sweet potato starch‐based foam trays (starch/SB and starch/AP trays, respectively). Starch/SB and starch/AP trays containing different concentrations of SB and AP (0%‐40%, w/w) were prepared, and their microstructure and physical, thermal, and mechanical properties were characterized. The addition of fibers wastes allowed obtaining a yellowish foam tray with lower luminosity and higher porosity, mechanical resistance, deformability, and better ability to absorb water as compared with the sweet potato starch foam trays without fibers. The addition of SB yielded foam trays less porous, with lower water absorption capacity and greater tensile strength than the addition of AP. Higher concentrations of AP fibers (greater than 30%) generate more extendible foam trays. The addition of fibrous wastes improved the thermal stability of the sweet potato starch foam trays. The composite foam trays produced in this work could be used as substitutes for expanded polystyrene in dry food packaging.

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“…The chemical compositions of Calotropis procera fiber (CPF) and the fiber after each treatment were determined according to Technical Association of the Pulp and Paper Industry (TAPPI) standard. The lignin content was determined according to the TAPPI norm T222 om-88 (de Oliveira et al 2016;Espino et al 2014). Briefly, 1 g of CPF was added into the 15-mL H 2 SO 4 solution (72 wt%), and maintained at room temperature for 2 h. Then, the distilled water, 560 mL, was added and boiled the mixture for 4 h before the centrifuge to get the insoluble lignin.…”

Section: Determination Of the Chemical Composition Of Calotropis Procmentioning

confidence: 99%

Preparation and characterization of cellulose nanocrystal extracted from Calotropis procera biomass

Song

Zhu

et al. 2019

Bioresour. Bioprocess.

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Calotropis procera fiber (CPF) is the fruit fiber of C. procera and belongs to a typical cellulosic fiber. In this study, Calotropis procera fiber (CPF) was first purified in the pretreatment process including delignification and bleaching before the isolation of cellulose nanocrystal. Chemical composition of Calotropis procera fiber was determined according to TAPPI standard method. It was composed of 64.0 wt% cellulose, 19.5 wt% hemicelluloses, and 9.7 wt% of lignin. The morphology of the Calotropis procera fiber and fiber after each pretreatment process was also investigated. Cellulose nanocrystal was extracted by classical sulfuric acid hydrolysis of the pretreated Calotropis procera fiber. TEM and SEM were used to analyze the morphologies of the obtained CNC. The crystallinity, thermal stability and suspension stability of the CNC were also investigated. The interesting results proved that this under-utilized biomass could be exploited as a new source of cellulose raw material for the production of cellulose nanocrystal. which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

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Production of cellulose nanocrystals from sugarcane bagasse fibers and pith

Cited by 179 publications

References 32 publications

Effects of Cellulose Nanocrystals and Cellulose Nanofibers on the Structure and Properties of Polyhydroxybutyrate Nanocomposites

Effects of Cellulose Nanocrystals and Cellulose Nanofibers on the Structure and Properties of Polyhydroxybutyrate Nanocomposites

The addition of sugarcane bagasse and asparagus peel enhances the properties of sweet potato starch foams

Preparation and characterization of cellulose nanocrystal extracted from Calotropis procera biomass

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