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Open accessJournal ArticleDOI: 10.1111/1541-4337.12727

Antimicrobial nanoparticles and biodegradable polymer composites for active food packaging applications.

04 Mar 2021-Comprehensive Reviews in Food Science and Food Safety (John Wiley & Sons, Ltd)-Vol. 20, Iss: 3, pp 2428-2454
Abstract: The food industry faces numerous challenges to assure provision of tasty and convenient food that possesses extended shelf life and shows long-term high-quality preservation. Research and development of antimicrobial materials for food applications have provided active antibacterial packaging technologies that are able to meet these challenges. Furthermore, consumers expect and demand sustainable packaging materials that would reduce environmental problems associated with plastic waste. In this review, we discuss antimicrobial composite materials for active food packaging applications that combine highly efficient antibacterial nanoparticles (i.e., metal, metal oxide, mesoporous silica and graphene-based nanomaterials) with biodegradable and environmentally friendly green polymers (i.e., gelatin, alginate, cellulose, and chitosan) obtained from plants, bacteria, and animals. In addition, innovative syntheses and processing techniques used to obtain active and safe packaging are showcased. Implementation of such green active packaging can significantly reduce the risk of foodborne pathogen outbreaks, improve food safety and quality, and minimize product losses, while reducing waste and maintaining sustainability.

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Topics: Food packaging (64%), Active packaging (63%), Sustainable packaging (58%) ... show more

18 results found

Journal ArticleDOI: 10.1016/J.TIFS.2021.08.019
Abstract: Background Food safety and food security remain the major concern of consumers and the food industry. Bacterial contamination continues to be a crucial food safety issue. Smart packaging incorporates both active and intelligent components. Intrinsic antibacterial activity, oxygen and ethylene scavenging (active) and the sensing (intelligent) properties of metal oxide nanoparticles are in research focus for application in smart food packaging, especially bio-nanocomposite films. Scope and approach Metal oxide nanoparticle properties are closely linked to their morphology resulting from the synthesis process. In this review, we cover current innovative synthesis methods for obtaining metal oxide nanoparticles and current incorporation techniques used to obtain smart (active and/or intelligent) packaging, focusing on bio-nanocomposites, commonly used metal oxides and future mixed metal or doped metal oxides. Taking into account safety, we focus on current legislation, and methods for risk assessment due to particle release from the packaging material and a summary of cytotoxic studies of metal oxide nanoparticles on human cells and the gut microbiota. Key findings and conclusions Antimicrobial effectiveness of metal oxide nanoparticles is highly dependent on morphology as a result of the synthesis method. Solution casting and electrospinning are innovative methods applied to synthesize metal oxide incorporated biopolymer films for active packaging with improved mechanical and barrier properties combined with active components (antimicrobial, ethylene scavenging). Metal oxides show sensitivity and selectivity to most gases produced during food spoilage. In selection of metal oxide for smart packaging, particle migration and cytotoxic activity are key issues requiring careful and detailed characterization.

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Topics: Active packaging (61%), Food packaging (58%), Oxide (51%)

3 Citations

Open accessJournal ArticleDOI: 10.1016/J.ULTSONCH.2021.105627
Abstract: New biotechnological processes using microorganisms and/or enzymes to convert carbonaceous resources, either biomass or depolymerized plastics into a broad range of different bioproducts are recognized for their high potential for reduced energy consumption and reduced GHG emissions. However, the hydrophobicity, high molecular weight, chemical and structural composition of most of them hinders their biodegradation. A solution to reduce the impact of non-biodegradable polymers spread in the environment would be to make them biodegradable. Different approaches are evaluated for enhancing their biodegradation. The aim of this work is to develop and optimize the ultrasonication (US) and UV photodegradation and their combination as well as dielectric barrier discharge (DBD) plasma as pre-treatment technologies, which change surface properties and enhance the biodegradation of plastic by surface oxidation and thus helping bacteria to dock on them. Polylactic acid (PLA) has been chosen as a model polymer to investigate its surface degradation by US, UV, and DBD plasma using surface characterization methods like X-ray Photoelectron Spectroscopy (XPS) and Confocal Laser Microscopy (CLSM), Atomic Force Microscopy (AFM) as well as FT-IR and drop contour analysis. Both US and UV affect the surface properties substantially by eliminating the oxygen content of the polymer but in a different way, while plasma oxidizes the surface.

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Topics: Biodegradation (55%), Polymer (52%), Polylactic acid (50%)

2 Citations

Journal ArticleDOI: 10.1016/J.FOODHYD.2021.107147
Kaixuan Ma1, Taotao Zhe1, Fan Li1, Yalan Zhang1  +3 moreInstitutions (1)
01 Feb 2022-Food Hydrocolloids
Abstract: Plastic pollution and food spoilage have drawn public attention, which may cause a great threat to the global environment and human health. Therefore, natural antimicrobial packaging has a pivotal share in solving these problems. In this study, biodegradable and antibacterial packaging films were successfully prepared via incorporating self-assembled berberine-cinnamic acid nanoparticles (BC NPs) into the film matrixes. With the addition of BC NPs, the UV-shielding property, hydrophobicity, and thermal stability of packaging were apparently improved. Meanwhile, the films also held considerable mechanical property and good biocompatibility, where the migrations of films in two food simulants were all far less than the permitted limits. Furthermore, nanocomposite films (NFs) exhibited strong antibacterial ability against both E. coli and S. aureus. By measuring the fluorescence spectrum and ROS production of films, we certificated NFs were AIE-active, and the antimicrobial activity of NFs was significantly enhanced under white light. Finally, the packaging test further indicated NFs could inhibit microbial growth of chicken samples well. The sustainable NFs will be ideal candidate materials to replace plastics and extend the shelf life of food products.

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Topics: Food packaging (56%)

2 Citations

Journal ArticleDOI: 10.1016/J.LWT.2021.112427
Haiying Cui1, Yiwei Wang1, Changzhu Li, Xiaochen Chen1  +1 moreInstitutions (1)
Abstract: As an emerging packaging material, hydrogels have been attracting attention to inhibit foodborne pathogens by encapsulating antimicrobial substances. Herein, an antibacterial packaging material was prepared via incorporation of methyl-β-cyclodextrin/Satureja montana L. essential oil inclusion complexes (MCD/SEO-ICs) into soy soluble polysaccharide (MCD/SEO-SSPS) hydrogel. During, the addition of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC) and N-hydroxysuccinimide (NHS) facilitated the formation of amido linkage between -NH2 and –COOH. Compared with SSPS hydrogel, the MCD/SEO-SSPS hydrogel exhibited a more compact structure. What's more, physical characterization indicated that combining MCD/SEO-ICs with SSPS could improve the hardness, adhesiveness and springiness of hydrogel. More importantly, a good antibacterial activity of SPSS hydrogel was obtained with the addition of MCD/SEO-ICs. On this basis, the application test demonstrated that the prepared MCD/SEO-SSPS hydrogel could reduce the visible count of Staphylococcus aureus (S. aureus) in meat samples by 3.5 Log CFU/g during 7-days storage, which retained the freshness of chilled pork and extended the shelf life. The above results indicated that MCD/SEO-SSPS hydrogel can be used as a safe and effective active packaging material for chilled meat preservation.

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Topics: Self-healing hydrogels (53%)

2 Citations

Journal ArticleDOI: 10.1016/J.FOODHYD.2021.107065
Swarup Roy1, Jong-Whan Rhim1Institutions (1)
01 Dec 2021-Food Hydrocolloids
Abstract: Quercetin-loaded chitosan nanoparticles (QCNP) were prepared using a simple one-pot chemical reaction and used to prepare chitosan-based bioactive packaging films. The QCNP was characterized using analytical methods. The QCNP-added chitosan film was yellowish and exhibited a light transmittance of >83% with excellent UV blocking properties. The addition of QCNP significantly influenced the physical properties such as mechanical, thermal, and water vapor barrier properties of the film. The release of quercetin from QCNP-added chitosan films was investigated using several food simulant solutions. Quercetin showed higher release under acidic and alcoholic conditions. In addition, the fabricated films exhibited potent antioxidant activity and some antibacterial activity. The developed functional chitosan/QCNP-based films with excellent physical and functional properties can be promising for active food packaging applications.

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Topics: Chitosan (56%)

2 Citations


175 results found

Open accessJournal ArticleDOI: 10.1098/RSTB.2008.0205
Abstract: One of the most ubiquitous and long-lasting recent changes to the surface of our planet is the accumulation and fragmentation of plastics. Within just a few decades since mass production of plastic...

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Topics: Plastic pollution (52%)

2,900 Citations

Open accessJournal ArticleDOI: 10.1016/J.JCIS.2011.07.017
Timothy V. Duncan1Institutions (1)
01 Nov 2011-
Abstract: In this article, several applications of nanomaterials in food packaging and food safety are reviewed, including: polymer/clay nanocomposites as high barrier packaging materials, silver nanoparticles as potent antimicrobial agents, and nanosensors and nanomaterial-based assays for the detection of food-relevant analytes (gasses, small organic molecules and food-borne pathogens). In addition to covering the technical aspects of these topics, the current commercial status and understanding of health implications of these technologies are also discussed. These applications were chosen because they do not involve direct addition of nanoparticles to consumed foods, and thus are more likely to be marketed to the public in the short term.

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1,348 Citations

Open accessJournal ArticleDOI: 10.2147/IJN.S121956
Lin Lin Wang, Chen Hu1, Longquan Shao1Institutions (1)
Abstract: Nanoparticles (NPs) are increasingly used to target bacteria as an alternative to antibiotics. Nanotechnology may be particularly advantageous in treating bacterial infections. Examples include the utilization of NPs in antibacterial coatings for implantable devices and medicinal materials to prevent infection and promote wound healing, in antibiotic delivery systems to treat disease, in bacterial detection systems to generate microbial diagnostics, and in antibacterial vaccines to control bacterial infections. The antibacterial mechanisms of NPs are poorly understood, but the currently accepted mechanisms include oxidative stress induction, metal ion release, and non-oxidative mechanisms. The multiple simultaneous mechanisms of action against microbes would require multiple simultaneous gene mutations in the same bacterial cell for antibacterial resistance to develop; therefore, it is difficult for bacterial cells to become resistant to NPs. In this review, we discuss the antibacterial mechanisms of NPs against bacteria and the factors that are involved. The limitations of current research are also discussed.

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Topics: Gene mutation (51%)

1,275 Citations

Open accessJournal ArticleDOI: 10.1016/S1369-7021(04)00286-X
Zhong Lin Wang1Institutions (1)
01 Jun 2004-Materials Today
Abstract: Zinc oxide (ZnO) is a unique material that exhibits semiconducting, piezoelectric, and pyroelectric multiple properties. Using a solid-vapor phase thermal sublimation technique, nanocombs, nanorings, nanohelixes/nanosprings, nanobows, nanobelts, nanowires, and nanocages of ZnO have been synthesized under specific growth conditions. These unique nanostructures unambiguously demonstrate that ZnO is probably the richest family of nanostructures among all materials, both in structures and properties. The nanostructures could have novel applications in optoelectronics, sensors, transducers, and biomedical science because it is bio-safe.

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Topics: Nanocages (53%)

1,239 Citations

Open accessBook
22 Sep 1992-
Abstract: Introduction to Food Packaging Definitions Functions of Packaging Package Environments Functions/Environment Grid Packaging Innovation Finding Information Structure and Related Properties of Plastic Polymers History Factors Influencing Polymer Structures and Related Properties Edible, Biobased and Biodegradable FoodPackaging Materials Edible Packaging Materials Biobased and Biodegradable Packaging Materials Environmental Aspects Future Trends Optical, Mechanical and Barrier Properties of Thermoplastic Polymers Optical Properties Tensile Properties Bursting Strength Impact Strength Tear Strength Stiffness Crease or Flex Resistance Coefficients of Friction Blocking Orientation and Shrinkage Barrier Properties Processing and Converting of Thermoplastic Polymers Extrusion Calendering Coating and Laminating Blending Vapor Deposition Nanocomposites Orientation Cross-Linking Microperforation Injection Molding Blow Molding Thermoforming Foamed (Cellular) Plastics Paper and Paper-Based Packaging Materials Pulp Paper Paperboard Products Metal Packaging Materials Manufacture of Tinplate Manufacture of ECCS Manufacture of Aluminum Container-Making Processes Aluminum Foils and Containers Corrosion of Metal Packaging Materials Glass Packaging Materials Composition and Structure Physical Properties Manufacture Glass Container Design Closures for Glass Containers Printing Processes, Inks, Adhesives and Labeling of Packaging Materials Printing Processes Inks Adhesives Labeling Coding Food Packaging Closures and Sealing Systems Closures for Glass and Plastic Containers Heat Sealing Peelable Seals Cold Seals Deteriorative Reactions in Foods Deteriorative Reactions in Foods Rates of Deteriorative Reactions Intrinsic Factors Controlling the Rates of Deteriorative Reactions Extrinsic Factors Controlling the Rates of Deteriorative Reactions Shelf Life of Foods Definitions Shelf Life Determination Determining Shelf Life from the Product Side Predicting Microbial Shelf Life Accelerated Shelf Life Testing Determining Shelf Life from the Consumer Side Shelf Life Devices Some Cautionary Advice Aseptic Packaging of Foods Sterilization of Packaging Material Food Contact Surfaces Aseptic Packaging Systems Integrity Testing of Aseptic Packages Packaging of Microwavable Foods Basic Principles Effect of Food Product Packaging Conclusion Active and Intelligent Packaging Historical Development Definitions Active Packaging Systems Intelligent Packaging Safety and Regulatory Issues Conclusions Modified Atmosphere Packaging Principles Gases Used in Map Methods of Creating MA Conditions Equipment for MAP Packaging for MAP Applications Microbiology of MAP Safety of MAP Refrigerated, Pasteurized Foods with Extended Durability and Sous Vide Applications of MAP Packaging of Flesh Foods Red Meat Cured and Cooked Meats Poultry Seafood Packaging of Horticultural Products Postharvest Physiology Modified Atmosphere Packaging of Fresh Horticultural Produce Packaging of Horticultural Products Packaging of Dairy Products Fluid Milk Fermented Products Butter and Spreads Cheese Milk Powders Packaging of Cereals, Snack Foods and Confectionery Grains Breakfast Cereals Pastas Bakery Products Snack Foods Confectionery Packaging of Beverages Water Carbonated Soft Drinks Coffee Tea Juices Beer Wine Legislative and Safety Aspects of Food Packaging Regulatory Considerations Plastics Packaging Metal Packaging Paper Packaging Glass Packaging Taints and Off-Flavors Traceability Food Packaging and Sustainability Waste Management Options Life Cycle Assessment Packaging and Environmental Policies Packaging and Sustainability

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Topics: Active packaging (72%), Child-resistant packaging (68%), Food packaging (67%) ... show more

1,068 Citations

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