Bionanocomposites of chitosan/montmorillonite incorporated with Rosmarinus officinalis essential oil: Development and physical characterization
TL;DR: In this paper, the physical properties of bionanocomposites based on chitosan (Ch) reinforced with different commercial nanoclays and further incorporated with rosemary essential oil (REO) were evaluated through mechanical and X-ray diffraction analyses.
About: This article is published in Food Packaging and Shelf Life.The article was published on 2018-06-01. It has received 50 citations till now.
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TL;DR: A comprehensive review of antimicrobial peptides, from synthesis procedures to mechanisms of action, with an emphasis on nisin is presented, and a historical outlook and the current perspectives of their potential applications in food packaging systems are addressed.
Abstract: Antimicrobial peptides are protein fragments present in the innate immune systems of invertebrates and vertebrates as host defense molecules. Due to their unique properties, these compounds have several useful appliances in human health by potentially playing antibacterial, antiviral, antifungal, and antitumor roles. The incorporation of antimicrobial peptides into polymer matrices as delivery systems has been studied recently with further interest towards the fields of medicine, pharmacy, personal care, and food packaging. The consumers' tendency to demand more natural products has paved the route for food industries to explore novel mechanisms as food preservation techniques. Antimicrobial peptide-containing active packaging materials emerge as a promising approach to retard food spoilage and increase food safety and shelf life. This text presents a comprehensive review of antimicrobial peptides, from synthesis procedures to mechanisms of action, with an emphasis on nisin. A historical outlook and the current perspectives of their potential applications in food packaging systems are also addressed.
138 citations
TL;DR: In this paper, the authors developed bionanocomposites based on chitosan/montmorillonite (MMT) incorporated with rosemary essential oil (REO) and evaluated its activity as primary packaging of fresh poultry meat.
120 citations
TL;DR: This work intends to present the current trends and the future challenges towards production and application of chitosan composites in the food packaging industry.
Abstract: Chitosan-based composites play an important role in food packaging applications and can be used either as films or as edible coatings. Due to their high costs and lower performance (i.e., lower barrier against water vapor, thermal, and mechanical properties) when compared to the traditional petroleum-based plastics, the use of such biopolymers in large-scale is still limited. Several approaches of chitosan composites in the packaging industry are emerging to overcome some of the disadvantages of pristine polymers. Thus, this work intends to present the current trends and the future challenges towards production and application of chitosan composites in the food packaging industry.
88 citations
Cites background from "Bionanocomposites of chitosan/montm..."
...Montmorillonite (MMT) is a layered silicate mineral clay, naturally present in volcanic rocks (bentonites), which is being pointed as a reinforcement material to bioplastics due to its wide availability, swelling and plasticizer ability, mechanical resistance, and low cost, just to mention a few characteristics [45]....
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..., (2018) [45] showed that chitosan films with MMT exhibited remarkable light block barrier, especially at UV wavelength, acting as an extra protection against oxidation processes....
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TL;DR: In this paper, a bionanocomposite based on chitosan reinforced with sodium montmorillonite (MMT) and incorporated with ginger essential oil (GEO) was used to extend shelf life of perishable food.
Abstract: Active packaging incorporated with natural extracts is a promising technology to extend shelf life of perishable food. Therefore, this study aimed to produce a bionanocomposite based on chitosan reinforced with sodium montmorillonite (MMT) and incorporated with ginger essential oil (GEO). In vitro activity was assessed through migration assay and antimicrobial study against foodborne bacteria. Phenolic compounds were diffused within 48 h of contact, and retained some of their antioxidant activity. Films demonstrated antimicrobial activity against both Gram-positive and -negative bacteria tested. The effect on the shelf life of fresh poultry meat was determined on samples wrapped in the biopolymers and stored under refrigeration for 15 days, through physicochemical and microbiological analyses. Compared to unwrapped poultry meat, samples wrapped in the bionanocomposites showed a reduction in microorganisms count of 1.2–2.6 log CFU/g, maintained color and pH values and thiobarbituric acid reactive substances (TBARS) index increased at a lower rate, extending fresh poultry meat shelf life. The incorporation of GEO enhanced the biopolymer activity, by reducing lipid oxidation and microbiological growth of the poultry meat. In contrast, reinforcement with MMT imprisoned the active compounds in the polymeric chain, hindering its activity. In conclusion, the bionanocomposites tested represent promising substitutes to commercial and unsustainable plastic films.
66 citations
Cites background from "Bionanocomposites of chitosan/montm..."
...Through the interaction with the polymeric chain, a more tortuous path and stronger structures are created, improving both mechanical and barrier properties [20,21]....
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29 Apr 2021
TL;DR: The main concepts and types of active and intelligent food packaging, focusing on recent progress and new trends using biodegradable and biobased polymers, are described in this paper.
Abstract: Food packaging has a crucial function in the modern food industry. New food packaging technologies seek to meet consumers and industrial´s demands. Changes related to food production, sale practices and consumers' lifestyles, along with environmental awareness and the advance in new areas of knowledge (such as nanotechnology or biotechnology), act as driving forces to develop smart packages that can extend food shelf-life, keeping and supervising their innocuousness and quality and also taking care of the environment. This review describes the main concepts and types of active and intelligent food packaging, focusing on recent progress and new trends using biodegradable and biobased polymers. Numerous studies show the great possibilities of these materials. Future research needs to focus on some important aspects such as possibilities to scale-up, costs, regulatory aspects, and consumers' acceptance, to make these systems commercially viable.
56 citations
References
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TL;DR: This review discusses the application of chitosan and its blends with other natural polymers such as starch and other ingredients for example essential oils, and clay in the field of edible films for food protection.
886 citations
TL;DR: A broad review on the recent advances in the research and development of biobased plastics and bionanocomposites that are used in various applications such as packaging, durable goods, electronics and biomedical uses is presented in this paper.
863 citations
TL;DR: In this paper, an active film from chitosan incorporated with aqueous green tea extract (GTE) was developed and the effects of GTE concentrations including 2, 5, 10 and 20% of green tea in the film-forming solution on the film properties were determined by measuring physical properties, total polyphenolic content and antioxidant activity of the active films.
838 citations
TL;DR: In this article, the latest innovations in food packaging, using improved, active and smart nanotechnology is analyzed, and the limits to the development of the new polymer nanomaterials that have the potential to completely transform the food packaging industry.
739 citations
TL;DR: In this review, recent advances in the preparation of natural biopolymer-based films and their nanocomposites, and their potential use in packaging applications are addressed.
Abstract: Concerns on environmental waste problems caused by non-biodegradable petrochemical-based plastic packaging materials as well as the consumer's demand for high quality food products has caused an increasing interest in developing biodegradable packaging materials using annually renewable natural biopolymers such as polysaccharides and proteins. Inherent shortcomings of natural polymer-based packaging materials such as low mechanical properties and low water resistance can be recovered by applying a nanocomposite technology. Polymer nanocomposites, especially natural biopolymer-layered silicate nanocomposites, exhibit markedly improved packaging properties due to their nanometer size dispersion. These improvements include increased modulus and strength, decreased gas permeability, and increased water resistance. Additionally, biologically active ingredients can be added to impart the desired functional properties to the resulting packaging materials. Consequently, natural biopolymer-based nanocomposite packaging materials with bio-functional properties have a huge potential for application in the active food packaging industry. In this review, recent advances in the preparation of natural biopolymer-based films and their nanocomposites, and their potential use in packaging applications are addressed.
677 citations