Comparison Between Chitosan Nanoparticles and Cellulose Nanofibers as Reinforcement Fillers in Papaya Puree Films: Effects on Mechanical, Water Vapor Barrier, and Thermal Properties

Barros-Alexandrino, Taís Téo de; Martelli‐Tosi, Milena; Assis, O. B. G.

doi:10.1002/pen.24938

Cited by 22 publications

(12 citation statements)

References 37 publications

(56 reference statements)

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“…Composite materials based on biopolymers are gaining more attraction due to the mechanical performance of these materials which is almost always greater than their neat biopolymer counterparts. Lignocellulosic‐based fibers from sisal, ramie and flax are used to replace conventional glass fibers [4,5] . Another member of lignocellulosic fiber which is oil palm empty fruit bunch (OPEFB) is frequently used recently in the production of biocomposites [6,7] .…”

Section: Introductionmentioning

confidence: 99%

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Morphology, mechanical properties, and biodegradability of all‐cellulose composite films from oil palm empty fruit bunch

2020

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Palm oil plantations are very important in that they supply vegetable oil globally. However, increased production of palm oil prompts the accumulation of large lignocelluloses residues in the form of oil palm empty fruit bunch (OPEFB). This study explored the advantages of using OPEFB in the production of all-cellulose composite (ACC) films. The isolation process of the raw OPEFB fiber was carried out using a chemical process to extract OPEFB nanocellulose. ACC films from OPEFB and microcrystalline cellulose (MCC) were prepared using a dimethylacetamide (DMAC) and lithium chloride solvent system whereby the partially dissolved cellulose was transformed into the matrix phase surrounding the remaining nondissolved fiber. ACC films with 1% (wt/vol) OPEFB and 3% (wt/vol) MCC were prepared and the effects of chemical treatment of the OPEFB cellulose on the mechanical properties, crystalline structure, morphology, moisture absorption and soil biodegradability of the ACC film were investigated. The tensile strength of the ACC film was tremendously improved by chemical treatment. For instance, when acetic acid was used to treat the nanocellulose, the resultant film showed 279% increment in tensile strength value. However, formic acid-treated films demonstrate greater moisture uptake and soil biodegradation rate. The findings could be related to the alterations of hydroxyl group composition in the nanocellulose and variation in dissolution rate of the nanocellulose during chemical treatment. K E Y W O R D S all-cellulose composite, biodegradability, ionic liquid, nanocellulose, oil palm empty fruit bunch 1 | INTRODUCTION Plastic film is the most commonly used material for packaging due to its aesthetic quality, low cost, handleability, flexibility, and lightweight. Plastic films used for domestic and food packaging are typically made from petroleum sources like polypropylene (PP), polystyrene (PS), and polyethylene (PE). Use of these materials has led to severe environmental issues. A way to reduce packaging environmental issues is by introducing natural ingredients into

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Section: Introductionmentioning

confidence: 99%

“…Lignocellulosic-based fibers from sisal, ramie and flax are used to replace conventional glass fibers. [4,5] Another member of lignocellulosic fiber which is oil palm empty fruit bunch (OPEFB) is frequently used recently in the production of biocomposites. [6,7] OPEFB is a byproduct generated from palm oil plantations and mills.…”

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confidence: 99%

Morphology, mechanical properties, and biodegradability of all‐cellulose composite films from oil palm empty fruit bunch

2020

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“…Solvent blending [55,56], extrusion blending and reactive extrusion blending [57] as chitosan may be heated up to temperatures below its glass transition temperature without affecting its physicochemical properties [58].…”

Section: Chitosanmentioning

confidence: 99%

Vegetable Additives in Food Packaging Polymeric Materials

Munteanu

Vasile

2019

Polymers

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Plants are the most abundant bioresources, providing valuable materials that can be used as additives in polymeric materials, such as lignocellulosic fibers, nano-cellulose, or lignin, as well as plant extracts containing bioactive phenolic and flavonoid compounds used in the healthcare, pharmaceutical, cosmetic, and nutraceutical industries. The incorporation of additives into polymeric materials improves their properties to make them suitable for multiple applications. Efforts are made to incorporate into the raw polymers various natural biobased and biodegradable additives with a low environmental fingerprint, such as by-products, biomass, plant extracts, etc. In this review we will illustrate in the first part recent examples of lignocellulosic materials, lignin, and nano-cellulose as reinforcements or fillers in various polymer matrices and in the second part various applications of plant extracts as active ingredients in food packaging materials based on polysaccharide matrices (chitosan/starch/alginate).In this review various recent applications of plant-based additives (lignocellulosic fibers/nano-cellulose as well as bioactive plant extracts) as reinforcements and active ingredients in food packaging materials are illustrated. Natural polysaccharide biopolymers (such as chitosan/starch/alginate) are nontoxic, biodegradable, biocompatible, and largely used in food packaging: Chitosan is known for its broad antimicrobial activity and its excellent film-forming properties; alginates have good film-forming properties, retain moisture, reduce microbial counts, and retard oxidative off-flavors; and starch is also particularly important for its cheap price and its frequency in nature. For these reasons, this review will present applications of plant extracts as active ingredients in natural polysaccharide biopolymers: chitosan/starch/alginate. Classification of Natural Biodegradable Polymers and AdditivesNatural biodegradable polymers and additives are polymers formed naturally by the living organisms by enzyme-catalyzed reactions and reactions of chain growth from monomers which are formed inside the cells by complex metabolic processes [5].Natural additives can be high molecular weight (natural polymers), such as proteins (collagen, silk, and keratin), carbohydrates (starch and glycogen), lignin, cellulose, high molecular weight phenolics (tannins and derivatives), and low molecular weight active substances, such as cold-pressed oils, essential oils (organic volatile compounds, generally of low molecular weight,

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“…Most approaches reported to date are not suitable for food packaging applications due to safety and toxicity concerns from the diffusion of residual crosslinker . The use of safer crosslinkers such as tripolyphosphate and genipin has been reported in the preparation of crosslinked chitosan beads , rods , hydrogels , micro/nanoparticles , and films for drug delivery application .…”

Section: Introductionmentioning

confidence: 99%

Barrier properties and abrasion resistance of biopolymer‐based coatings on biodegradable poly(lactic acid) films

Aris

Bavishi

Sharma

et al. 2019

Polymer Engineering & Sci

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Coated polylactic acid (PLA) films consisting of crosslinked‐chitosan/beeswax layer were prepared to improve barrier properties and abrasion resistance of the base substrate. The effect of crosslinking the chitosan layer on durability and barrier properties of the coatings was investigated. Crosslinked samples exhibited lower degree of swelling compared to uncrosslinked samples and 50% reduction in water vapor transmission rate (WVTR) compared to neat PLA films. The beeswax coating decreased the WVTR of chitosan‐coated PLA films significantly (by 100%). However, it had a marginal effect on the oxygen transmission rate. Water vapor transmission was less affected by abrasion than oxygen transmission for both uncrosslinked and crosslinked samples. The WVTR of crosslinked samples were retained even after being subjected to abrasion, whereas WVTR of uncrosslinked samples dropped by 50%. Results obtained using the Taber test method also show that the weight loss of crosslinked coatings are about 75% less than that of uncrosslinked samples and can withstand a greater number of cycles before rupture. These translucent‐coated films retained good barrier and mechanical properties along with providing improved abrasion resistance after crosslinking. This approach provides exciting new possibilities for expanding the use of biodegradable polymers in packaging applications. POLYM. ENG. SCI., 59:1874–1881, 2019. © 2019 Society of Plastics Engineers

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Comparison Between Chitosan Nanoparticles and Cellulose Nanofibers as Reinforcement Fillers in Papaya Puree Films: Effects on Mechanical, Water Vapor Barrier, and Thermal Properties

Cited by 22 publications

References 37 publications

Morphology, mechanical properties, and biodegradability of all‐cellulose composite films from oil palm empty fruit bunch

Morphology, mechanical properties, and biodegradability of all‐cellulose composite films from oil palm empty fruit bunch

Vegetable Additives in Food Packaging Polymeric Materials

Barrier properties and abrasion resistance of biopolymer‐based coatings on biodegradable poly(lactic acid) films

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