Novel Whey Protein Isolate/Polyvinyl Biocomposite for Packaging: Improvement of Mechanical and Water Barrier Properties by Incorporation of Nano-silica

Lara, Bruna Rage Baldone; Andrade, Paulo Sérgio de; Guimarães, Mário; Dias, Marali Vilela; Alcântara, Lizzy Ayra Pereira

doi:10.1007/s10924-020-02033-x

Cited by 18 publications

(6 citation statements)

References 39 publications

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“…Figure 3 shows the biocomposite film absorptions that occurred on bands ranging from 4000 to 400 cm −1 . The biocomposite films exhibited a band at approximately 3270 cm −1 , which is related to the presence of the N-H bond from WPI, the stretch of the OH groups, the presence of water in all films, and the presence of OH groups on the NCC surface [ 12 , 52 ]. The absorption band around 3270 cm −1 shifted to a lower wavenumber as the NCC remaining in the protein sample increased.…”

Section: Resultsmentioning

confidence: 99%

Optimization of Biocomposite Film Based on Whey Protein Isolate and Nanocrystalline Cellulose from Pineapple Crown Leaf Using Response Surface Methodology

et al. 2022

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This study employed response surface methodology to optimize the preparation of biocomposites based on whey protein isolate, glycerol, and nanocrystalline cellulose from pineapple crown leaf. The effects of different concentrations of nanocrystalline cellulose as a filler and glycerol as a plasticizer on the thickness, the tensile strength, and the elongation at break on the resulting biocomposite films were investigated. The central composite design was used to determine the optimum preparation conditions for biocomposite films with optimum properties. The regression of a second-order polynomial model resulted in an optimum composition consisting of 4% glycerol and 3.5% nanocrystalline cellulose concentrations, which showed a desirability of 92.7%. The prediction of the regression model was validated by characterizing the biocomposite film prepared based on the optimum composition, at which the thickness, tensile strength, and elongation at break of the biocomposite film were 0.13 mm, 7.16 MPa, and 39.10%, respectively. This optimum composition can be obtained in range concentrations of glycerol (4–8%) and nanocrystalline cellulose (3–7%). Scanning electron microscope images showed that nanocrystalline cellulose dispersed well in the pure whey protein isolate, and the films had a relatively smooth surface. In comparison, a rough and uneven surface results in more porous biocomposite films. Fourier transform infrared spectroscopy revealed that nanocrystalline cellulose and glycerol showed good compatibility with WPI film by forming hydrogen bonds. The addition of nanocrystalline cellulose as a filler also decreased the transparency, solubility, and water vapor permeability and increased the crystallinity index of the resulting biocomposite film.

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Section: Resultsmentioning

confidence: 99%

Optimization of Biocomposite Film Based on Whey Protein Isolate and Nanocrystalline Cellulose from Pineapple Crown Leaf Using Response Surface Methodology

et al. 2022

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“…This absorption is characteristic of a sample's chemical bonds (stretching, binding, etc.) [19]. Using a mathematical algorithm, the wave number raw data is transformed into an IR spectrum that serves as a characteristic "molecular fingerprint" that can be used in the structural identification of organic samples.…”

Section: Fourier Transform-infra Red (Ft-ir) and Attenuated Total Ref...mentioning

confidence: 99%

“…A solid sample is either ground with IR potassium bromide (KBr) and pressed into a transparent disc or is thinly sliced and placed onto a KBr window. While liquid samples are directly measured or diluted with an IR transparent solvent [19,20].…”

Section: Fourier Transform-infra Red (Ft-ir) and Attenuated Total Ref...mentioning

confidence: 99%

Physicochemical Characterization of Nanobiocomposites

Dmour¹

2022

Biocomposites - Recent Advances [Working Title]

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Nanobiocomposites (NBCs) have many applications in drug delivery, tissue engineering, etc. The need for NBC physicochemical characterization is mandatory before investigating their usefulness in developing drug delivery systems. This chapter will explore the basic and the most recent techniques used in the physicochemical characterization of these biocomposites. Examples of physical properties include morphological properties using microscopy (size, porosity, etc.), particle size analysis and surface charge, powder X-ray diffraction, thermal, mechanical, and rheological properties, etc. Examples of chemical properties include molecular weight determination, solubility and purity assessment, degree of functionalization, and gelling properties, using spectroscopic techniques (UV, MS, NMR, etc.). For each property, the following points will be elucidated: sample preparation, factors affecting the accuracy of the test results, examples of data interpretation from the recently published literature, and test limitations, if any.

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“…Thereby, the use of eco-friendly bio-based materials, including the valorization of agricultural wastes, has been currently the subject of various investigations [ 14 , 72 ]. Furthermore, countries such as France, Costa Rica, and Brazil have decided to withdraw the non-biodegradable plastics in the composition of disposable materials until 2020, 2021, and 2028, respectively [ 73 ].…”

Section: Food Packaging Innovationmentioning

confidence: 99%

Valorization and Application of Fruit and Vegetable Wastes and By-Products for Food Packaging Materials

et al. 2021

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The important roles of food packaging are food protection and preservation during processing, transportation, and storage. Food can be altered biologically, chemically, and physically if the packaging is unsuitable or mechanically damaged. Furthermore, packaging is an important marketing and communication tool to consumers. Due to the worldwide problem of environmental pollution by microplastics and the large amounts of unused food wastes and by-products from the food industry, it is important to find more environmentally friendly alternatives. Edible and functional food packaging may be a suitable alternative to reduce food waste and avoid the use of non-degradable plastics. In the present review, the production and assessment of edible food packaging from food waste as well as fruit and vegetable by-products and their applications are demonstrated. Innovative food packaging made of biopolymers and biocomposites, as well as active packaging, intelligent packaging, edible films, and coatings are covered.

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Novel Whey Protein Isolate/Polyvinyl Biocomposite for Packaging: Improvement of Mechanical and Water Barrier Properties by Incorporation of Nano-silica

Cited by 18 publications

References 39 publications

Optimization of Biocomposite Film Based on Whey Protein Isolate and Nanocrystalline Cellulose from Pineapple Crown Leaf Using Response Surface Methodology

Optimization of Biocomposite Film Based on Whey Protein Isolate and Nanocrystalline Cellulose from Pineapple Crown Leaf Using Response Surface Methodology

Physicochemical Characterization of Nanobiocomposites

Valorization and Application of Fruit and Vegetable Wastes and By-Products for Food Packaging Materials

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