Levan-chitosan blend films: Preparation, structural, physical properties and application in pork packaging

Wang, Yuehui; Zhou, Zhijiang; Han, Ye

doi:10.1016/j.ijbiomac.2022.07.049

Cited by 17 publications

(3 citation statements)

References 44 publications

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“…The disappearance of the protonated amine (-NH 3 ) at 1500-1600 cm −1 after the addition of aminosilane suggests an interaction between aminosilane, with the silanol group of the MgO-silica@aminosilane network, and the amine group of chitosan (figure 6) [39,72]. Also, the resulting peaks around 790 cm −1 , 1077 cm −1 , 1384 cm −1 , and 1400 cm −1 correspond to deformation vibration bands of chitosan-based nanocomposites matched well with previously reported [59,[73][74][75]. Similar results were obtained for the two other chitosan-silica nanocomposites sol-gelderived silica at bands located near ∼449 cm −1 , 790 cm −1 , 946 cm −1 , 1077 cm −1 , referred to the Si-O-and Mg- O-stretching vibration of Si-OH silanol groups within chitosan matrix [64,76,77].…”

Section: Ftir Studysupporting

confidence: 88%

Optical properties and antimicrobial of ionic chitosan-MgO-SiO₂@ aminolsilane nanocomposites

Abouelnaga,

Abou Hammad

2024

Phys. Scr.

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This investigation involved synthesizing a nanocomposite heterostructure, Chitosan-MgO-SiO2@aminosilane, using the physical blending of chitosan-MgO-silica with aminosilane using the sol–gel technique. The prepared nanocomposites were characterized using x-ray diffraction (XRD), Scanning/Transmission Electron Microscope (SEM-EDX/TEM), Fourier Transform Infrared Spectroscopy (FTIR), and optical analysis to investigate the microstructural and spectroscopic properties. XRD results confirmed the formation of orthorhombic Mg2SiO4 within the fabricated system. FTIR analysis verified interactions among chitosan, MgO-silica, and aminosilane, leading to the development of diverse functional groups, including M-O bonds, silanol-hydroxyl ions, and heteropolymeric-O-M within the chitosan-MgO-SiO2@aminosilane nanocomposite. Optical studies demonstrated that aminosilane-incorporated samples have two distinct absorption bands around 215 nm and 419 nm, corresponding to the electronic transitions π–π* (k-band) and n–π* (R-band), respectively. The absorption band at 400 nm is ascribed to localized surface plasmon resonance (SPR). The incorporation of aminosilane resulted in a decrease in the direct transition energy gap from 2.677 to 2.399 eV. The nanocomposites displayed significant antimicrobial activity against pathogenic microorganisms such as Gram-positive Staphylococcus aureus, Gram-negative Pseudomonas aeruginosa, and pathogenic fungi Candida albicans and Aspergillus niger. The positive antimicrobial response of the fabricated nanocomposites candidates them for various applications, including wound dressings and food packaging.

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Section: Ftir Studysupporting

confidence: 88%

Optical properties and antimicrobial of ionic chitosan-MgO-SiO₂@ aminolsilane nanocomposites

Abouelnaga,

Abou Hammad

2024

Phys. Scr.

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“…Wang et al developed a levan–chitosan (LE/CS) blend film by casting from a solution. The addition of levan significantly enhanced the absorption of UV light and reduced the swelling of water from the film layers [ 121 ]. LE/CS mixed films were used as packaging material for fresh pork and had well-maintained properties.…”

Section: Levan Nanocarriers Developmentmentioning

confidence: 99%

Recent Developments and Applications of Microbial Levan, A Versatile Polysaccharide-Based Biopolymer

Domżał-Kędzia

Ostrowska²,

Lewińska

et al. 2023

Molecules

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Polysaccharides are essential components with diverse functions in living organisms and find widespread applications in various industries. They serve as food additives, stabilizers, thickeners, and fat substitutes in the food industry, while also contributing to dietary fiber for improved digestion and gut health. Plant-based polysaccharides are utilized in paper, textiles, wound dressings, biodegradable packaging, and tissue regeneration. Polysaccharides play a crucial role in medicine, pharmacy, and cosmetology, as well as in the production of biofuels and biomaterials. Among microbial biopolymers, microbial levan, a fructose polysaccharide, holds significant promise due to its high productivity and chemical diversity. Levan exhibits a wide range of properties, including film-forming ability, biodegradability, non-toxicity, self-aggregation, encapsulation, controlled release capacity, water retention, immunomodulatory and prebiotic activity, antimicrobial and anticancer activity, as well as high biocompatibility. These exceptional properties position levan as an attractive candidate for nature-based materials in food production, modern cosmetology, medicine, and pharmacy. Advancing the understanding of microbial polymers and reducing production costs is crucial to the future development of these fields. By further exploring the potential of microbial biopolymers, particularly levan, we can unlock new opportunities for sustainable materials and innovative applications that benefit various industries and contribute to advancements in healthcare, environmental conservation, and biotechnology.

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“…Chitosan is a naturally abundant cationic alkaline polysaccharide derived from the deacetylation of chitin, which is primarily found in the exoskeletons of crustaceans and insects, as well as in the cell walls of fungi [29,30,31]. Although CS is less prevalent in nature compared to chitin, it is a linear polymer primarily composed of glucosamine units and exhibits polyelectrolyte behavior under acidic pH conditions.…”

Section: Introductionmentioning

confidence: 99%

Development of multilayer PVA-MMT and PVA-CS film structures by spin coating-assisted layer-by-layer technique: Effect of PVA, CS and MMT nanoclay orientation on oxygen barrier properties

Mighri

2023

Mater. Plus

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The orientation of biopolymer macromolecules and nanoclay, specifically Montmorillonite (MMT) nanoplatelets, plays a crucial role in controlling the properties of multi-layer film structures. Understanding the impact of macromolecule and nanoclay platelets’ orientation on barrier properties of packaging films is essential. To investigate the influence of hydrogen bonding in multilayer films structures, two polymers, namely polyvinyl alcohol (PVA) and chitosan (CS), were selected and laminated nanocomposite films were fabricated using the spin coating-assisted layer-by-layer (Spin-LbL) assembly technique. This technique facilitates the production of highly oriented nanocomposite films, where polymer chains and nanoclay particles align parallel to the film surface. Multi-directional 2-D wide-angle X-ray diffraction (2D-WADX) was successfully used to accurately assess the orientation and distribution of MMT nanoplatelets. Additionally, the films underwent characterization using X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The 2D-WADX analysis revealed a parallel alignment of both the PVA chains and MMT clay nanoplatelets parallel to film surface. The XRD results confirmed the formation of intercalated nanolaminate structures, hydrogen-bonding interactions, and adjustments in the crystalline structure of PVA matrix. Through contact angle and oxygen permeability measurements, we observed that all quadri-layer film structures exhibited hydrophobic properties and reduced oxygen permeability compared to neat PVA films. Furthermore, the integration of MMT nanoclay, even at low concentrations, contributed to the development of nanocomposite films with improved oxygen barrier properties. Consequently, the quadri-layer films demonstrate great potential for food packaging applications.

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Levan-chitosan blend films: Preparation, structural, physical properties and application in pork packaging

Cited by 17 publications

References 44 publications

Optical properties and antimicrobial of ionic chitosan-MgO-SiO₂@ aminolsilane nanocomposites

Optical properties and antimicrobial of ionic chitosan-MgO-SiO₂@ aminolsilane nanocomposites

Recent Developments and Applications of Microbial Levan, A Versatile Polysaccharide-Based Biopolymer

Development of multilayer PVA-MMT and PVA-CS film structures by spin coating-assisted layer-by-layer technique: Effect of PVA, CS and MMT nanoclay orientation on oxygen barrier properties

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Levan-chitosan blend films: Preparation, structural, physical properties and application in pork packaging

Cited by 17 publications

References 44 publications

Optical properties and antimicrobial of ionic chitosan-MgO-SiO2@ aminolsilane nanocomposites

Optical properties and antimicrobial of ionic chitosan-MgO-SiO2@ aminolsilane nanocomposites

Recent Developments and Applications of Microbial Levan, A Versatile Polysaccharide-Based Biopolymer

Development of multilayer PVA-MMT and PVA-CS film structures by spin coating-assisted layer-by-layer technique: Effect of PVA, CS and MMT nanoclay orientation on oxygen barrier properties

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Product

Resources

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Optical properties and antimicrobial of ionic chitosan-MgO-SiO₂@ aminolsilane nanocomposites

Optical properties and antimicrobial of ionic chitosan-MgO-SiO₂@ aminolsilane nanocomposites