Physico-chemical properties improvement of soy protein isolate films through caffeic acid incorporation and tri-functional aziridine hybridization

Kang, Ho-Min; Zhong, Wei; Zhang, Wei; Li, Jianzhang; Zhang, Shifeng

doi:10.1016/j.foodhyd.2016.07.009

Cited by 87 publications

(54 citation statements)

References 39 publications

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“…Furthermore, the TSM and WA of SPI-MCC-Cu film were the lowest among other films that decreased to 94.86% and 10.13%, indicating the best water resistance of the composite film. The results confirmed that the molecules of MCC and NCs might greatly crosslink the polymeric network of SPI and decrease the swelling of soy protein matrix under high moisture [45,46]. Therefore, SPI-MCC-Cu films prevented the permeation of water molecules and exhibited lower TSM and WA values.…”

Section: Water Resistancesupporting

confidence: 56%

High-Performance Microcrystalline Cellulose/Soy Protein Isolate-Based Nanocomposite Film via Cu and Zn Nanoclusters Modification

Kuang¹,

Jin²,

Chen³

et al. 2017

Preprint

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Soy protein isolate (SPI) based materials are abundant, biocompatible, renewable, and biodegradable. In order to improve the tensile strength (TS) of SPI films, we prepared a novel composite film modified with microcrystalline cellulose (MCC) and metal nanoclusters (NCs) in this research. The effects of the modification of MCC on the properties of SPI-Cu NCs and Zn NCs films were investigated. Attenuated total reflectance-Fourier transformed infrared spectroscopy analyses and X-ray diffraction patterns characterized the strong interactions and reduction of the crystalline structure of the composite films. Scanning electron microscope showed the enhanced cross-linked and entangled structure of modified films. Compared with untreated SPI film, the tensile strength of the SPI-MCC-Cu and SPI-MCC-Zn films increased from 2.91 MPa to 13.95 and 6.52 MPa, respectively. Moreover, the results also indicated their favorable water resistance with higher water contact angle. Meanwhile, the composite films exhibited increased initial degradation temperatures, demonstrating their higher thermostability. The results suggested that MCC could effectively improve the performance of SPI-NCs films, which would provide a novel preparation method for environmentally friendly SPI-based films in the applications of packaging materials.

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Section: Water Resistancesupporting

confidence: 56%

High-Performance Microcrystalline Cellulose/Soy Protein Isolate-Based Nanocomposite Film via Cu and Zn Nanoclusters Modification

Kuang¹,

Jin²,

Chen³

et al. 2017

Preprint

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“…The intensity of the diffraction peak at 2θ ≈ 19.3° diminished in all modified samples after the incorporation of additives. This feature demonstrates that the crystalline structure in soy protein might be partially broken by interactions between peptide chains and additives in yuba films . β ‐sheet structure was decreased by blending additives of all types.…”

Section: Resultsmentioning

confidence: 99%

“…This feature demonstrates that the crystalline structure in soy protein might be partially broken by interactions between peptide chains and additives in yuba films. 48 -sheet structure was decreased by blending additives of all types. Diminution of -sheet structure caused silk-fibroin films to be more water stable and flexible.…”

Section: X-ray Diffractograms and Crystallinitymentioning

confidence: 95%

Physical, mechanical and water barrier properties of yuba films incorporated with various types of additives

2019

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Background To apply yuba as an edible film, we evaluated film properties after adding various additives, including plasticizer (glycerol and sorbitol), cross‐linking agent (oxidized ferulic acid), emulsifier (sodium pyrophosphate), thicker (sodium carboxymethyl cellulose) and lipid (beeswax), alone or in combination (sodium pyrophosphate and sorbitol; sodium carboxymethyl cellulose and glycerol; and beeswax and glycerol). Results The addition of beeswax and oxidized ferulic acid enhanced the water resistance of the film, showing a decreased solubility in water and swelling ratio. The results for tensile strength and elongation showed opposite trends, except for sorbitol, sodium pyrophosphate, and sodium carboxymethyl cellulose and glycerol. Tensile strength of sodium carboxymethyl cellulose (9.3 MPa) was increased compared to that of yuba without additive (3.5 MPa). Elongation was increased in glycerol (132%) compared to that in the control (8%). Water vapor permeability decreased in all samples by 0.7 to 8 times compared to that of the control. X‐ray diffraction analysis found that blending additives influenced the crystalline degree and second structure of the film. Atomic force microscopy revealed that the control (37 nm) and sodium carboxymethyl cellulose and glycerol (47 nm) exhibited smooth surface and lower roughness values compared to glycerol (84 nm) and sodium carboxymethyl cellulose and glycerol (87 nm). Conclusion Our results confirmed that yuba could be used as edible film with a wide range of applications depending on types of additive and purpose of use. The results of the present study revealed that sodium carboxymethyl cellulose and glycerol‐added yuba film had exceptional edible film properties, including water resistance, elongation and water vapor permeability based on principal component analysis. © 2018 Society of Chemical Industry

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“…All SPI films exhibited characteristic peaks of amide I (C-O stretching), amide II (N-H bending), and amide III (C-N and N-H stretching) at 1654, 1546, and 1238 cm −1 , respectively29. The peak at 2933 cm −1 was assigned to the −CH 2 groups stretching vibrations and the peak situated at 1032 cm −1 in all spectra might be related to C–O stretching, owing to the glycerol303132. The position of peaks at 3310 cm −1 in the SPI film moved to 3288 cm −1 , indicating the physicochemical cross-linking interactions between SPI and PTGE.…”

Section: Resultsmentioning

confidence: 90%

Development of Eco-friendly Soy Protein Isolate Films with High Mechanical Properties through HNTs, PVA, and PTGE Synergism Effect

Liu

Song

Zhang

et al. 2017

Sci Rep

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This study was to develop novel soy protein isolate-based films for packaging using halloysite nanotubes (HNTs), poly-vinyl alcohol (PVA), and 1,2,3-propanetriol-diglycidyl-ether (PTGE). The structural, crystallinity, opacity, micromorphology, and thermal stability of the resultant SPI/HNTs/PVA/PTGE film were analyzed by the Attenuated total reflectance-Fourier transformed infrared (ATR-FTIR) spectroscopy, X-ray diffraction (XRD), UV-Vis spectrophotometry, scanning electron microscopy (SEM), and thermo-gravimetric analysis (TGA). The SPI/HNTs/PVA/PTGE film illustrated that HNTs were uniformly dispersed in the SPI matrix and the thermal stability of the film was enhanced. Furthermore, the tensile strength (TS) of the SPI/HNTs/PVA/PTGE film was increased by 329.3% and the elongation at the break (EB) remained unchanged. The water absorption (WA) and the moisture content (MC) were decreased by 5.1% and 10.4%, respectively, compared to the unmodified film. The results highlighted the synergistic effects of SPI, HNTs, PVA, and PTGE on the mechanical properties, water resistance, and thermal stability of SPI films, which showed excellent strength and flexibility. In short, SPI films prepared from HNTs, PVA, and PTGE showed considerable potential as packaging materials.

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Physico-chemical properties improvement of soy protein isolate films through caffeic acid incorporation and tri-functional aziridine hybridization

Cited by 87 publications

References 39 publications

High-Performance Microcrystalline Cellulose/Soy Protein Isolate-Based Nanocomposite Film via Cu and Zn Nanoclusters Modification

High-Performance Microcrystalline Cellulose/Soy Protein Isolate-Based Nanocomposite Film via Cu and Zn Nanoclusters Modification

Physical, mechanical and water barrier properties of yuba films incorporated with various types of additives

Development of Eco-friendly Soy Protein Isolate Films with High Mechanical Properties through HNTs, PVA, and PTGE Synergism Effect

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