Research on Antimicrobial Activity and Packaging Performance of Degradable Protein Films

Qiao, Liang; Huang, Zhi Ying; Jia, Pan; Bao, Jiaqi; Xun, Qian Nan; Jiang, Shuo; Zhang, Yu Ting

doi:10.4028/www.scientific.net/amr.915-916.947

Cited by 9 publications

(7 citation statements)

References 18 publications

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“…Additionally, WPI-NaCas-GLY composite films can be used as active or antimicrobial packaging materials for foods by carrying antimicrobial agents, as they can both suppress microbial growth as well as limit the decomposition rate, which consequently provides significant safety and economic gains [4][5][6]. Microorganisms typically grow on foods' outer surfaces, and hence, the spoilage is located on the surface, as well.…”

Section: Introductionmentioning

confidence: 99%

Analysis and modeling of moisture sorption behavior for antimicrobial composite protein films

Qiao

Pan

Bao

et al. 2014

Bio-Medical Materials and Engineering

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The WPI-NaCas-GLY antimicrobial film takes full advantage of the controlled release of active or antimicrobial agents as well as demonstrates a great potential for functioning as an alternative biodegradable polymer in practical applications. The moisture sorption kinetics of the film as an important carrier of active agents was investigated at various relative humidities (RH). The results indicated that the moisture sorption characterization and procedure of this film can be described well by the empirical Peleg model with higher confidence and concordance. The model could predict the film's moisture content at any time (M t ), the time to reach any given level of R (t R ), the equilibrium moisture at any RH condition (M e ), and isotherm trend based upon experimental data and modeled constants k 1 , k 2 , a, b, c, and d without giving consideration to their physical meaning. The water vapor transmission rate of the WPI-NaCas-GLY antimicrobial film increased exponentially with increasing RH due to its hydrophilicity, which was primarily caused by the presence of glycerol in a higher content. The results also suggested that a w predominately affects the film's M e values compared with the temperature factor by fixed nonlinear multiple regression analyses.

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Section: Introductionmentioning

confidence: 99%

Analysis and modeling of moisture sorption behavior for antimicrobial composite protein films

Qiao

Pan

Bao

et al. 2014

Bio-Medical Materials and Engineering

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“…TiO 2 is a very interesting alternative as fillers for this type of plastic film, as it has low toxicity, is chemically inert, and has been proven to have antimicrobial activity against E. coli and S. aureus [ 133 ]. Spherical or spheroidal submicron particles have commonly been used.…”

Section: Nanotools For Food Safety and Securitymentioning

confidence: 99%

“…Zhou et al and Li et al [ 134 , 135 ] have studied films prepared with whey protein isolates; Wang and co-workers [ 136 ] prepared soy protein isolate films; and Lei et al [ 133 ] have obtained films from a mixture of milk proteins (casein and whey protein isolate). In all cases, the addition of TiO 2 acted as a mechanical reinforcement and barrier against gases and water vapor.…”

Section: Nanotools For Food Safety and Securitymentioning

confidence: 99%

Nano-Enable Materials Promoting Sustainability and Resilience in Modern Agriculture

et al. 2021

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Intensive conventional agriculture and climate change have induced severe ecological damages and threatened global food security, claiming a reorientation of agricultural management and public policies towards a more sustainable development model. In this context, nanomaterials promise to support this transition by promoting mitigation, enhancing productivity, and reducing contamination. This review gathers recent research innovations on smart nanoformulations and delivery systems improving crop protection and plant nutrition, nanoremediation strategies for contaminated soils, nanosensors for plant health and food quality and safety monitoring, and nanomaterials as smart food-packaging. It also highlights the impact of engineered nanomaterials on soil microbial communities, and potential environmental risks, along with future research directions. Although large-scale production and in-field testing of nano-agrochemicals are still ongoing, the collected information indicates improvements in uptake, use efficiency, targeted delivery of the active ingredients, and reduction of leaching and pollution. Nanoremediation seems to have a low negative impact on microbial communities while promoting biodiversity. Nanosensors enable high-resolution crop monitoring and sustainable management of the resources, while nano-packaging confers catalytic, antimicrobial, and barrier properties, preserving food safety and preventing food waste. Though, the application of nanomaterials to the agri-food sector requires a specific risk assessment supporting proper regulations and public acceptance.

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“…3,4 After being degassed by a vacuum pump for 15 min, the resulting solutions were then cast in d = 90 mm polyacrylic plates and dried at 55 °C in a ventilated oven for 4 h. The obtained dry, solid films were peeled off and stored in a chamber at 50% RH and 23 °C for over 48 h until they were evaluated.…”

Section: Preparation Of the Antimicrobial Composite Protein Filmmentioning

confidence: 99%

“…The result of which provides significant safety and economic gains. [2][3][4] Typically, the micro-organisms will grow on foods' outer surfaces depending on the oxygen and humidity, and thus, the spoilage is located on the surface as well. Relatedly, these films are advantageous as they deliver the preservative to the foods' surfaces and limit preservative diffusion from the surface to the bulk of the food.…”

Section: Introductionmentioning

confidence: 99%

Analysis and modelling of non-Fickian diffusion behaviour for antimicrobial agent in composite protein films

Qiao

Bao

Jia

et al. 2016

Materials Technology

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The migration mechanism of potassium sorbate release from Gelatin-NaCas and WPI-NaCas antimicrobial films to the food simulant system was investigated. The diffusion coefficients and migration types were determined, which contributed to the creation of a highly nonlinear model for hydrophilic composite films. It was observed that non-Fickian diffusion represented the diffusion process in the filmfood simulant system, which was dependent upon matrix relaxation kinetics. The negative exponential regression model was found to excellently describe both the diffusion behaviour of potassium sorbate and the swelling phenomenon of matrix. In addition, it is advantageous in regard to the diffusion range and the sustained release compared to the well-known power law model. The improved linear superimposition model related to Brownian motion-swelling relaxation combined Fick's second law with a first-order kinetic type equation that could satisfactorily explain the relaxation behaviour to a varying degree in the diffusion of hydrophilic films quantitatively.

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Research on Antimicrobial Activity and Packaging Performance of Degradable Protein Films

Cited by 9 publications

References 18 publications

Analysis and modeling of moisture sorption behavior for antimicrobial composite protein films

Analysis and modeling of moisture sorption behavior for antimicrobial composite protein films

Nano-Enable Materials Promoting Sustainability and Resilience in Modern Agriculture

Analysis and modelling of non-Fickian diffusion behaviour for antimicrobial agent in composite protein films

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