Fabrication and characterization of TiO2/whey protein isolate nanocomposite film

Li, Yanxia; Jiang, Yanfeng; Liu, Fei; Ren, Fazheng; Zhao, Guanghua; Leng, Xiaojing

doi:10.1016/j.foodhyd.2010.10.006

Cited by 151 publications

(97 citation statements)

References 29 publications

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“…Zhou et al (2009) used 4% TiO 2 and observed a 70% decrease in WVP while Zolfi et al (2014) and Li et al (2011) observed 14% and 9.4% decreases by adding 5% and 1% TiO 2 , respectively. Kadam et al (2013) and Sothornvit et al (2009) did not obtain any gain in the barrier property of the WPI film after adding silica coated TiO 2 and clay nanoparticles, respectively.…”

Section: Water Vapor Permeability Of the Filmsmentioning

confidence: 96%

“…Some of these studies reported either no improvement or decrease in mechanical properties upon addition of these nanoparticles (Sothornvit et al, 2009;Zolfi et al, 2014). With the addition of titania, Zhou et al (2009) andLi et al (2011) reached a maximum strength of 2.38 MPa (41% increment with respect to pure WPI film) and 10.2 MPa (67% increment), respectively. To achieve a homogeneous distribution of the nanoparticles, Kadam et al (2013) coated titania with silica, however, they observed only a slight increase in tensile strength from 1.03 to 1.18 MPa (15% increment).…”

Section: Mechanical Properties Of the Filmsmentioning

confidence: 99%

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Improvement of barrier and mechanical properties of whey protein isolate based food packaging films by incorporation of zein nanoparticles as a novel bionanocomposite

2016

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a b s t r a c tIn this study, whey protein isolate (WPI) based bio-nanocomposite films embedded with zein nanoparticles (ZNP) were prepared by solution casting. Nanoparticles were coated with sodium caseinate to obtain a uniform distribution in the films. The mechanical, water vapor barrier, surface wetting, morphological and viscoelastic properties of the films were investigated. The addition of ZNP significantly improved the water vapor barrier and mechanical properties of the WPI without adversely affecting the elongation of the films. Dynamical mechanical analysis and contact angle measurements revealed that upon addition of the nanoparticles, the fractional free volume and hydrophilicity of the WPI films decreased. Sodium caseinate containing both hydrophilic and hydrophobic groups created an efficient interface between the hydrophobic ZNP and hydrophilic WPI matrix, allowing for a homogeneous distribution of nanoparticles even at very high loading levels as evidenced by the scanning electron microscope (SEM) and atomic force microscopy (AFM) images. The WPI/ZNP nanocomposite films can potentially become effective food packaging materials.

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Section: Water Vapor Permeability Of the Filmsmentioning

confidence: 96%

Section: Mechanical Properties Of the Filmsmentioning

confidence: 99%

Improvement of barrier and mechanical properties of whey protein isolate based food packaging films by incorporation of zein nanoparticles as a novel bionanocomposite

2016

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“…The plates were kept in a hot air circulating drying oven (KRS, Indonesia) for drying at 50 C for 3 h. Dried films were peeled and stored at 24 ± 2°C and 50 ±5% RH before measurements [17] Optical Transparency Characterization Film transparency was determined by measuring the percent transmittance at 660 nm using Shimadzu UV-1800 spectrophotometer (Shimadzu, Kyoto, Japan) [20]. Film specimen was cut into a rectangle piece and placed in a spectrophotometer test cell directly and air was used as reference [21]. Measurements were performed in three replicates.…”

Section: Preparation Of Bio-nanocomposite Filmmentioning

confidence: 99%

Optical transparency and mechanical properties of semi-refined iota carrageenan film reinforced with SiO2 as food packaging material

Aji

Praseptiangga

Rochima

et al. 2018

AIP Conference Proceedings

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“…Hence, among other biopolymers (Park et al, 2002;Petersson and Oksman, 2006;Almasi et al, 2010), whey protein-based nanocomposites have become a promising field of interest in recent years (Hedenqvist et al, 2006;Zhou et al, 2009;Sothornvit et al, 2010;Li et al, 2011;Kadam et al, 2013;Zolfi et al, 2014;Azevedo et al, 2015;Wakai and Almenar, 2015;Hassannia-Kolaee et al, 2016a,b;Oymaci and Altinkaya, 2016). Previous research on whey protein isolate (WPI) nanocomposites demonstrated that the barrier and mechanical properties of these materials improved with increasing nanofiller loadings (Sothornvit et al, 2010;Zolfi et al, 2014;Azevedo et al, 2015;Hassannia-Kolaee et al, 2016a;Oymaci and Altinkaya, 2016;Zink et al, 2016).…”

mentioning

confidence: 99%

Improvement of Food Packaging-Related Properties of Whey Protein Isolate-Based Nanocomposite Films and Coatings by Addition of Montmorillonite Nanoplatelets

et al. 2017

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In this study, the effects of the addition of montmorillonite (MMT) nanoplatelets on whey protein isolate (WPI)-based nanocomposite films and coatings were investigated. The main objective was the development of WPI-based MMT nanocomposites with enhanced barrier and mechanical properties. WPI-based nanocomposite cast films and coatings were prepared by dispersing 0% (reference sample), 3, 6, 9% (w/w protein) MMT, or, depending on the protein concentration, also 12 and 15% (w/w protein) MMT into native WPI-based dispersions, followed by subsequent denaturation during the drying and curing process. The natural MMT nanofillers could be randomly dispersed into film-forming WPI-based nanodispersions, displaying good compatibility with the hydrophilic biopolymer matrix. As a result, by addition of 15% (w/w protein) MMT into 10% (w/w dispersion) WPI-based cast films or coatings, the oxygen permeability (OP) was reduced by 91% for glycerol-plasticized and 84% for sorbitol-plasticized coatings, water vapor transmission rate was reduced by 58% for sorbitol-plasticized cast films. Due to the addition of MMT nanofillers, the Young's modulus and tensile strength improved by 315 and 129%, respectively, whereas elongation at break declined by 77% for glycerol-plasticized cast films. In addition, comparison of plasticizer type revealed that sorbitol-plasticized cast films were generally stiffer and stronger, but less flexible compared glycerol-plasticized cast films. Viscosity measurements demonstrated good processability and suitability for up-scaled industrial processes of native WPI-based nanocomposite dispersions, even at high-nanofiller loadings. These results suggest that the addition of natural MMT nanofillers into native WPI-based matrices to form nanocomposite films and coatings holds great potential to replace well-established, fossil-based packaging materials for at least certain applications such as oxygen barriers as part of multilayer flexible packaging films.

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Fabrication and characterization of TiO2/whey protein isolate nanocomposite film

Cited by 151 publications

References 29 publications

Improvement of barrier and mechanical properties of whey protein isolate based food packaging films by incorporation of zein nanoparticles as a novel bionanocomposite

Improvement of barrier and mechanical properties of whey protein isolate based food packaging films by incorporation of zein nanoparticles as a novel bionanocomposite

Optical transparency and mechanical properties of semi-refined iota carrageenan film reinforced with SiO2 as food packaging material

Improvement of Food Packaging-Related Properties of Whey Protein Isolate-Based Nanocomposite Films and Coatings by Addition of Montmorillonite Nanoplatelets

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