Carrageenan-based hydrogels and films: Effect of ZnO and CuO nanoparticles on the physical, mechanical, and antimicrobial properties

Oun, Ahmed A.; Rhim, Jong‐Whan

doi:10.1016/j.foodhyd.2016.12.040

Cited by 240 publications

(97 citation statements)

References 42 publications

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“…52 However, in carrageenan hydrogels, besides helix bundles, electrostatic attraction between cations and helix bundles also enhance the hydrogel strength. 58,84 Similar synergetic dualphysical crosslinking have offered novel preparation strategies for high-strength hydrogel. 56 For example, a thermo-sensitive and tough supramolecular gelatin hydrogel was constructed through the tri-helix self-assembly and the aggregation of gelatin-grafted and free hydrophobic motifs.…”

Section: Physical and Multiple Crosslinking Methodsmentioning

confidence: 99%

High‐strength hydrogels: Microstructure design, characterization and applications

Hua

Fei

2018

J Polym Sci B Polym Phys

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Hydrogels are a class of polymeric network materials embedded in a water-rich environment. They are widely applied in drug delivery, actuator, and sensor. However, conventional hydrogels encountered limits from their poor mechanical property. Recent researches in hydrogels have been focusing on mechanical enhancement, ranging from design of microstructures to adjustment of compositions in hydrogels. Here, the design and fabrication strategies of high-strength hydrogels, as well as major progress in their typical strength-support applications are systemically reviewed.

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Section: Physical and Multiple Crosslinking Methodsmentioning

confidence: 99%

High‐strength hydrogels: Microstructure design, characterization and applications

Hua

Fei

2018

J Polym Sci B Polym Phys

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“…Copper and copper oxide bulk materials (microsized) have been also physically and chemically characterized and investigated as antimicrobial agents, with the advantage of being easily mixed with polar liquids and polymers, relatively stable in terms of chemical and physical properties, and cheaper and less toxic for living organism than silver . However, the antimicrobial use of copper could be successfully extended by using it in the nano‐sized form and by embedding into polymeric matrices . In fact, the incorporation of antimicrobials in a polymer matrix allows the gradual release of the biocide substance from package, controlling the microbial contamination along the shelf life of the food product at the same time that while reducing the amount of preservatives added within the bulk of food …”

Section: Introductionmentioning

confidence: 99%

Antimicrobial nanocomposites and electrospun coatings based on poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) and copper oxide nanoparticles for active packaging and coating applications

Castro-Mayorga

Fabra

Cabedo

et al. 2017

J of Applied Polymer Sci

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Active biodegradable poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) melt mixed nanocomposites and bilayer structures containing cooper oxide (CuO) nanoparticles were developed and characterized. The bilayer structures consisted of a bottom layer of compression molded PHBV3 (3% mol valerate) coated with an active electrospun fibers mat made with microbial mixed culture derived PHBV18 (18 % valerate) and CuO nanoparticles. The results showed that the oxygen barrier properties were slightly enhanced by the addition of 0.05% CuO nanoparticles to nanocomposite films but a negligible effect was registered for the bilayer structures. Neither the water vapor permeability nor the mechanical properties were modified by the addition of CuO.Interestingly, by incorporating highly dispersed and distributed CuO nanoparticles in a coating by electrospinning, a lower metal oxide loading was required to exhibit significant bactericidal and virucidal performance against the food-borne pathogens Salmonella enterica, Listeria monocytogenes and Murine norovirus. The biodisintegration tests of the samples under composting conditions showed that even the 0.05% CuO coated structures biodegraded within 35 days.

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“…The peak at 1635 cm −1 corresponds to the stretching vibration of the -NH group, a typical amide I in all SRC-based films (Rhim & Wang, 2014;Shankar et al, 2017). The prominent peak observed at 1,221 cm −1 is assigned to sulfate ester (S = O) groups of carrageenan (Oun & Rhim, 2017;Rhim & Wang, 2014), while the peak observed at 1,035 cm −1 is attributed to glycosidic linkages of carrageenan (Farhan & Hani, 2017).…”

Section: Fourier Transform Infrared Spectroscopymentioning

confidence: 95%

Semi‐refined carrageenan film incorporated with α‐tocopherol: Application in food model

Hamid

Yahaya

Saupy

et al. 2019

J Food Process Preserv

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Semi‐refined carrageenan (SRC) film plasticized with glycerol and incorporated with α‐tocopherol was prepared for food packaging application. Functional characterization, thermal stability, and microstructure of SRC‐based films were analyzed. The effects of antioxidant α‐tocopherol from SRC‐based film were studied based on thiobarbituric acid‐reactive substance assay, metmyoglobin assay, and pH value in food model (meat patties) for 12 days of storage. The development of lipid oxidation was delayed in the meat patties wrapped with antioxidant films during the storage with the final value of 0.68–0.37 mg malondialdehyde/kg sample. A less than 50% brown color development (metmyoglobin) of the meat patties wrapped with antioxidant film was observed in the first nine days of storage. Hence, the incorporation of α‐tocopherol into the SRC‐based film could be an alternative way to prolong the shelf life of food product, reducing the use of synthetic preservative directly into food product. Practical applications Recent strategy on the development of biodegradable film for food packaging is important as an alternative to the petrochemical‐derived plastic that is harmful to the environment. SRC is one of the potential biopolymers that has the ability to form a strong gel and provides efficient barrier against gas, lipids, and oils, and addition of plasticizer glycerol into SRC enhanced mechanical and barrier properties of the films. The present study showed the potential of α‐tocopherol within the SRC film plasticized with glycerol as active packaging on the film characteristics and increased the shelf life of meat patties. Hence, the active packaging film developed is not only contributes to reduce plastic waste discharged to environment but can be a potential substitute of synthetic preservative in food.

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Carrageenan-based hydrogels and films: Effect of ZnO and CuO nanoparticles on the physical, mechanical, and antimicrobial properties

Cited by 240 publications

References 42 publications

High‐strength hydrogels: Microstructure design, characterization and applications

High‐strength hydrogels: Microstructure design, characterization and applications

Antimicrobial nanocomposites and electrospun coatings based on poly(3‐hydroxybutyrate‐co‐3‐hydroxyvalerate) and copper oxide nanoparticles for active packaging and coating applications

Semi‐refined carrageenan film incorporated with α‐tocopherol: Application in food model

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