Plasticized hemicelluloses/chitosan-based edible films reinforced by cellulose nanofiber with enhanced mechanical properties

Xu, Jiyuan; Xia, Ruirui; Zheng, Lu; Yuan, Tong‐Qi; Sun, Run‐Cang

doi:10.1016/j.carbpol.2019.115164

Cited by 115 publications

(54 citation statements)

References 46 publications

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“…These wastes are mainly composed of cellulose, lignin, and hemicellulose, and are known as vegetable biomass or lignocellulosic biomass. There are multiple applications for each of these constituent fractions: active carbons [ 2 ], composites [ 3 ], levulinic acid production [ 4 ], thermal insulating materials [ 5 ], viscose [ 6 ], materials for the treatment of wastewater [ 7 ], edible coatings [ 8 ], furfural and hydroxymethylfurfural production [ 9 ], the formation of thermoplastics and flexible films [ 10 ], obtaining prebiotics applicable in the food industry [ 11 ], acid dyes absorbents [ 12 ], food additives and nutraceuticals [ 13 ], energy, fuels, synthesis gas, macromolecules, and aromatic compounds [ 14 , 15 , 16 ] and composites [ 17 , 18 ], among others.…”

Section: Introductionmentioning

confidence: 99%

Study on the Macro and Micromechanics Tensile Strength Properties of Orange Tree Pruning Fiber as Sustainable Reinforcement on Bio-Polyethylene Compared to Oil-Derived Polymers and Its Composites

et al. 2020

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Agroforestry creates value but also a huge amount of waste outside its value chain. Tree pruning is an example of such a low value waste, that is typically discarded or incinerated in the fields or used to recover energy. Nonetheless, tree prunings are rich in wood fibers that can be used as polymer reinforcement. Although there are some bio-based polymers, the majority of industries use oil-based ones. The election of the materials is usually based on a ratio between properties and cost. Bio-based polymers are more expensive than oil-based ones. This work shows how a bio-polyethylene matrix can be reinforced with fibers from orange tree prunings to obtain materials with notable tensile properties. These bio-based materials can show a balanced cost due to the use of a cheap reinforcement with an expensive matrix. The matrix used showed a tensile strength of 18.65 MPa, which reached 42.54 MPa after the addition of 50 wt.% of reinforcement. The obtained values allow the use of the studied composite to replace polypropylene and some of its composites under tensile loads.

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Section: Introductionmentioning

confidence: 99%

Study on the Macro and Micromechanics Tensile Strength Properties of Orange Tree Pruning Fiber as Sustainable Reinforcement on Bio-Polyethylene Compared to Oil-Derived Polymers and Its Composites

et al. 2020

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“…The peak at 1070 cm −1 was related to the C–O–C stretching vibration of chitosan in the COC 0 film spectra [ 34 ]. However, the C–O–C stretching vibration of the films containing CNFs was shifted to around 1059 cm −1 which was due to the overlap of the C–O–C bonds in both CNFs and chitosan [ 35 ]. These results demonstrated that there are strong hydrogen bonds between CNFs and chitosan in the molecular chain.…”

Section: Resultsmentioning

confidence: 99%

Developed Chitosan/Oregano Essential Oil Biocomposite Packaging Film Enhanced by Cellulose Nanofibril

Chen

Wang

et al. 2020

Polymers

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The use of advanced and eco-friendly materials has become a trend in the field of food packaging. Cellulose nanofibrils (CNFs) were prepared from bleached bagasse pulp board by a mechanical grinding method and were used to enhance the properties of a chitosan/oregano essential oil (OEO) biocomposite packaging film. The growth inhibition rate of the developed films with 2% (w/w) OEO against E. coli and L. monocytogenes reached 99%. With the increased levels of added CNFs, the fibrous network structure of the films became more obvious, as was determined by SEM and the formation of strong hydrogen bonds between CNFs and chitosan was observed in FTIR spectra, while the XRD pattern suggested that the strength of diffraction peaks and crystallinity of the films slightly increased. The addition of 20% CNFs contributed to an oxygen-transmission rate reduction of 5.96 cc/m2·day and water vapor transmission rate reduction of 741.49 g/m2·day. However, the increase in CNFs contents did not significantly improve the barrier properties of the film. The addition of 60% CNFs significantly improved the barrier properties of the film to light and exhibited the lowest light transmittance (28.53%) at 600 nm. Addition of CNFs to the chitosan/OEO film significantly improved tensile strength and the addition of 60% CNFs contributed to an increase of 16.80 MPa in tensile strength. The developed chitosan/oregano essential oil/CNFs biocomposite film with favorable properties and antibacterial activity can be used as a green, functional material in the food-packaging field. It has the potential to improve food quality and extend food shelf life.

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“…In selecting appropriate plasticizer for the hemicellulose film, Xu and co-workers [ 33 ] reported the comparison of mechanical properties of cellulose nanofibers (CNF)-hemicellulose/chitosan composite films plasticized by different types of plasticizers, i.e., glycerin, xylitol, and sorbitol. It was found that with the increase of plasticizer concentration, the elongation at break of the composite increases obviously, while the tensile strength decreases.…”

Section: Modification Of Hemicellulosementioning

confidence: 99%

“…In addition, CNF-modified AcAx showed a moisture absorption rate of less than 8% under 97% relative humidity at room temperature. For hemicellulosic/chitosan system, the addition of 5% CNF could increase the tensile strength of the film by 2.3 times [ 33 ].…”

Section: Modification Of Hemicellulosementioning

confidence: 99%

Hemicellulose-Based Film: Potential Green Films for Food Packaging

et al. 2020

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Globally increasing environmental awareness and the possibility of increasing price and dwindling supply of traditional petroleum-based plastics have led to a breadth of research currently addressing environmentally friendly bioplastics as an alternative solution. In this context, hemicellulose, as the second richest polysaccharide, has attracted extensive attention due to its combination of such advantages as abundance, biodegradability, and renewability. Herein, in this review, the latest research progress in development of hemicellulose film with regard to application in the field of food packaging is presented with particular emphasis on various physical and chemical modification approaches aimed at performance improvement, primarily for enhancement of mechanical, barrier properties, and hydrophobicity that are essential to food packing materials. The development highlights of hemicellulose film substrate are outlined and research prospects in the field are described.

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Plasticized hemicelluloses/chitosan-based edible films reinforced by cellulose nanofiber with enhanced mechanical properties

Cited by 115 publications

References 46 publications

Study on the Macro and Micromechanics Tensile Strength Properties of Orange Tree Pruning Fiber as Sustainable Reinforcement on Bio-Polyethylene Compared to Oil-Derived Polymers and Its Composites

Study on the Macro and Micromechanics Tensile Strength Properties of Orange Tree Pruning Fiber as Sustainable Reinforcement on Bio-Polyethylene Compared to Oil-Derived Polymers and Its Composites

Developed Chitosan/Oregano Essential Oil Biocomposite Packaging Film Enhanced by Cellulose Nanofibril

Hemicellulose-Based Film: Potential Green Films for Food Packaging

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