Preparation and characterization of bio-nanocomposite films based on soy protein isolate and montmorillonite using melt extrusion

Kumar, Pankaj; Sandeep, K.P.; Alavi, Sajid; Trương, Bá Vương; Gorga, Russell E.

doi:10.1016/j.jfoodeng.2010.04.035

Cited by 254 publications

(125 citation statements)

References 34 publications

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“…The difference in the weight loss between WPI and WPI-NP samples at 450 °C is listed in Table 2. Similar results are also reported by Kumar et al (2010) for soy protein isolate (SPI) and montmorillonite (MMT) bionano-composite films. Because the TiO 2 @@SiO 2 nanoparticles are stable above 650 °C, the residue remaining after the decomposition of nanocomposite samples at 650 °C confirms the presence of a similar weight% of nanoparticles in the investigated samples.…”

Section: Thermogravimetric Analysissupporting

confidence: 86%

Preparation and characterization of whey protein isolate films reinforced with porous silica coated titania nanoparticles

Kadam

Thunga

Wang

et al. 2013

Journal of Food Engineering

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Whey protein isolate (WPI) films embedded with TiO2@@SiO2 (porous silica (SiO2) coated titania (TiO2)) nanoparticles for improved mechanical properties were prepared by solution casting. A WPI solution of 1.5 wt% TiO2@@SiO2 nanoparticles was subjected to sonication at amplitudes of 0, 16, 80 and 160 μm prior to casting in order to improve the film forming properties of protein and to obtain a uniform distribution of nanoparticles in the WPI films. The physical and mechanical properties of the films were determined by dynamic mechanical analysis (DMA), thermogravimetric analysis (TGA), and tensile testing. Water vapor permeability (WVP) measurements revealed that the water vapor transmission rates are slightly influenced by sonication conditions and nanoparticle loading. The DMA results showed that, at high sonication levels, addition of nanoparticles prevented protein agglomeration. The thermal stability of the materials revealed the presence of 3-4 degradation stages in oxidizing the protein films. The addition of nanoparticles strengthens the WPI film, as evidenced by tensile stress analysis. Sonication improved nanoparticle distribution in film matrix; such films can potentially become effective packaging materials to enhance food quality and safety. AbstractWhey protein isolate (WPI) films embedded with TiO 2 @@SiO 2 (porous silica (SiO 2 ) coated titania (TiO 2 )) nanoparticles for improved mechanical properties were prepared by solution casting. A WPI solution of 1.5 wt% TiO 2 @@SiO 2 nanoparticles was subjected to sonication at amplitudes of 0, 16, 80 and 160 μm prior to casting in order to improve the film forming properties of protein and to obtain a uniform distribution of nanoparticles in the WPI films. The physical and mechanical properties of the films were determined by dynamic mechanical analysis (DMA), thermogravimetric analysis (TGA), and tensile testing. Water vapor permeability (WVP) measurements revealed that the water vapor transmission rates are slightly influenced by sonication conditions and nanoparticle loading. The DMA results showed that, at high sonication levels, addition of nanoparticles prevented protein agglomeration. The thermal stability of the materials revealed the presence of 3-4 degradation stages in oxidizing the protein films. The addition of nanoparticles strengthens the WPI film, as evidenced by tensile stress analysis. Sonication improved nanoparticle distribution in film matrix; such films can potentially become effective packaging materials to enhance food quality and safety.

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Section: Thermogravimetric Analysissupporting

confidence: 86%

Preparation and characterization of whey protein isolate films reinforced with porous silica coated titania nanoparticles

Kadam

Thunga

Wang

et al. 2013

Journal of Food Engineering

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“…According to the TGA analysis, adding of fi llers improved the thermal stability and thermal stability of PVA matrix was found to increase with fi ller reinforcement. Similar results for different types of composite fi lms have been reported (Wang et al, 2006;Tunc et al, 2007;Kumar et al, 2010). The lap joint shear strength was used to evaluate the bonding properties of PVA composites.…”

Section: Rezultati I Raspravasupporting

confidence: 71%

The Effects of Poly(vinyl acetate) Filled with Nanoclay and Cellulose Nanofibrils on Adhesion Strength of Poplar and Scots Pine Wood

et al. 2016

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“…Small pieces (0.5 × 0.5 cm) of the film were coated with a thin layer of nanogold under vacuum in a sputter coating unit and immediately evaluated by SEM [12]. Table 1 shows the mechanical properties of the EVOH film.…”

Section: Microscopy Characterizationmentioning

confidence: 99%

Effect of Zinc Oxide Nanoparticles on Barrier and Mechanical Properties of EVOH Nanocomposite film Incorporating with Plasticizer

Sadeghi¹,

Shahedi²

2016

JFNR

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In this study, ethylene vinyl alcohol copolymer (EVOH) nanocomposite was prepared by adding nano zinc oxide (nano-ZnO) as a filling agent and glycerol as a plasticizer. In the solution mixing method, usually a plasticizer is used to prevent the film from becoming brittle. However, adding a plasticizer also has adverse effects on the film. Examples of such effects include; decreased barrier properties (water vapor permeability and oxygen permeability) and reduced mechanical properties (tensile strength (TS)). The goal of this study was, to reduce the adverse effects of the plasticizer on film's matrix by adding nanoparticles. Three concentrations (0%, 1%, and 2%) of Nano-ZnO were used in order to find the optimum concentration of glycerol (30%, 40%, and 50%) with the least significant adverse effect. Incorporating glycerol reduced the barrier and the tensile strength properties in matrix films, while, adding nano-ZnO improved barrier, tensile strength properties and reduced adverse effects of the glycerol. FE-SEM image analysis was used to confirm the adverse effects of glycerol on matrix film.

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Preparation and characterization of bio-nanocomposite films based on soy protein isolate and montmorillonite using melt extrusion

Cited by 254 publications

References 34 publications

Preparation and characterization of whey protein isolate films reinforced with porous silica coated titania nanoparticles

Preparation and characterization of whey protein isolate films reinforced with porous silica coated titania nanoparticles

The Effects of Poly(vinyl acetate) Filled with Nanoclay and Cellulose Nanofibrils on Adhesion Strength of Poplar and Scots Pine Wood

Effect of Zinc Oxide Nanoparticles on Barrier and Mechanical Properties of EVOH Nanocomposite film Incorporating with Plasticizer

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