Characterization of physicochemical and structural properties of atmospheric cold plasma (ACP) modified zein

Dong, Shuang; Gao, Ang; Zhao, Yu; Li, Yun-tong; Chen, Ye

doi:10.1016/j.fbp.2017.05.011

Cited by 66 publications

(38 citation statements)

References 44 publications

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“…), and type of electrode are the factors that influence properties of the generated plasma. Dong, Gao, Zhao, Li, and Chen (2017) showed that cold plasma treatment caused the depolymerization of zein molecules with a particle size that decreased with the applied voltages (50, 75, 100, and 125 V) over a 2 min treatment time.…”

Section: Modification Of Plant Proteins By Various Processing Techniquesmentioning

confidence: 99%

“…It has been reported that the high energy of the plasma leads to the breakdown of covalent bonds within the protein molecules, and, the reactive species cause sulfur amino acid oxidation, which could lead to cleavage of disulfide (S–S) bonds. Cleavage of the S–S bonds could lead to the formation of SH or SO groups, which can further distort the conformation of the protein and break the polypeptide (Dong et al., 2017). For example, Dong et al.…”

Section: Modification Of Plant Proteins By Various Processing Techniquesmentioning

confidence: 99%

“…For example, Dong et al. (2017) showed that cold plasma treatment led to an increase in the SH group concentration up until the 75 V treatment before decreasing. The solubility of modified proteins increased from 0 to 75 V and then decreased.…”

Section: Modification Of Plant Proteins By Various Processing Techniquesmentioning

confidence: 99%

See 2 more Smart Citations

Modification of plant proteins for improved functionality: A review

Akharume

Aluko

Adedeji

2021

Comp Rev Food Sci Food Safe

342

136

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The market trend towards plant‐based protein has seen a significant increase in the last decade. This trend has been projected to continue in the coming years because of the strong factors of sustainability and less environmental impact associated with the production of plant‐based protein compared to animal, aside from other beneficial health claims and changes in consumers' dietary lifestyles. In order to meet market demand, there is a need to have plant‐based protein ingredients that rival or have improved quality and functionality compared to the traditional animal protein ingredients they may replace. In this review article, we present a detailed and concise summary of the functionality challenges of some plant protein ingredients with associated physical, chemical, and biological processing techniques (traditional and emerging technologies) that have been attempted to enhance them. We cataloged the differences between several studies that seek to address the functionality challenges of selected plant‐based protein ingredients without overtly commenting on a general technique that addresses the functionality of all plant‐based protein ingredients. Additionally, we elucidated the chemistry behind some of these processing techniques and how they modify the protein structure for improved functionality. Although, many food industries are shifting away from chemical modification of proteins because of the demand for clean label product and the challenge of toxicity associated with scale‐up of this technique, so physical and biological techniques are widely being adopted to produce a functional ingredient such as texturized vegetable proteins, hydrolyzed vegetable protein, clean label protein concentrates, de‐flavored protein isolates, protein flour, and grits.

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Section: Modification Of Plant Proteins By Various Processing Techniquesmentioning

confidence: 99%

Section: Modification Of Plant Proteins By Various Processing Techniquesmentioning

confidence: 99%

See 1 more Smart Citation

Modification of plant proteins for improved functionality: A review

Akharume

Aluko

Adedeji

2021

Comp Rev Food Sci Food Safe

342

136

View full text Add to dashboard Cite

show abstract

“…Our previous study also showed that the ordered molecular structure of zein was disrupted after ACP treatment with a decrease in enthalpy. [32] As a semicrystalline polymer, the T m of PCL was correlated with the wafer size and the integrity of the crystallization. The declined T m of PCL (decreased from 60.62°C to 58.20°C) in ZPA was due to the crosslinking reaction on the zein surface, which destroyed the crystallization integrity.…”

Section: Thermal Propertiesmentioning

confidence: 99%

Preparation and characterization of PCL‐grafted zein film via atmospheric‐pressure cold plasma pretreatment

Dong

Guo

et al. 2021

Plasma Processes & Polymers

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To improve the water resistance property of zein film, polycaprolactone (PCL) was grafted on the zein film after atmospheric-pressure cold plasma (ACP) pretreatment. The grafting yields of PCL ranging from 15.91% ± 0.67% to 28.95% ± 0.79% were remarkably enhanced than the untreated one (12.15% ± 0.57%; p < . 05), which indicated that ACP modification could effectively improve the grafting ability of the zein film. Fourier-transform infrared spectrum and X-ray diffraction patterns revealed that PCL layer had been successfully grafted and the lateral α-helix packing was susceptible to plasma treatment. Findings from this study indicated that ACP pretreatment was an effective modification approach in zein-based polymers for packaging application.

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“…analyzed by small-angle X-ray diffraction [40]. A full mechanistic understanding underlying the changes in viscosity in zein inks through aging is beyond the scope of this work; however, we conducted basic FTIR spectroscopy analysis to identify possible structural variations in zein formulations through aging based on the vibrational amide I bands related to the protein secondary structures [41]. We estimated the changing percentages of different structural configurations (i.e., α-helix, β-sheets, β-turns, and non-ordered structures or random coils) in the overall structure of zein formulations with aging.…”

Section: Rheology Characterizationmentioning

confidence: 99%

Biofabrication using maize protein: 3D printing using zein formulations

Negrete

Aceves-Colin

Rivera-Flores

et al. 2020

Preprint

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The use of three-dimensional (3D) printing for biomedical applications has expanded exponentially in recent years. However, the current portfolio of 3D printable inks is still limited. For instance, only a few protein matrices have been explored as printing/bioprinting materials. Here, we introduce the use of zein, the primary constitutive protein in maize seeds, as a 3D-printable material. Zein-based inks were prepared by dissolving commercial zein powder in ethanol with or without polyethylene glycol (PEG400) as a plasticizer. The rheological characteristics of our materials, studied during 21 days of aging/maturation, showed an increase in the apparent viscosity as a function of time in all formulations. The addition of PEG 400 decreased the apparent viscosity. Inks with and without PEG400 and at different maturation times were tested for printability in a BioX bioprinter. We optimized the 3D printing parameters for each ink formulation in terms of extrusion pressure and linear printing velocity. Higher fidelity structures were obtained with inks that had maturation times of 10 to 14 days. We present different proof-of-concept experiments to demonstrate the versatility of the engineered zein inks for diverse biomedical applications. These include printing of complex and/or free-standing 3D structures, materials for controlled drug release, and scaffolds for cell culture.

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Characterization of physicochemical and structural properties of atmospheric cold plasma (ACP) modified zein

Cited by 66 publications

References 44 publications

Modification of plant proteins for improved functionality: A review

Modification of plant proteins for improved functionality: A review

Preparation and characterization of PCL‐grafted zein film via atmospheric‐pressure cold plasma pretreatment

Biofabrication using maize protein: 3D printing using zein formulations

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