Effect of chitosan/essential oils/silver nanoparticles composite films packaging and gamma irradiation on shelf life of strawberries

Shankar, Shiv; Khodaei, Diako; Lacroix, Monique

doi:10.1016/j.foodhyd.2021.106750

Cited by 105 publications

(60 citation statements)

References 46 publications

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“…The prepared CHI–EO–Ag NP composite films were used for the packaging of strawberries in the presence or absence of gamma radiation. The developed films showed remarkable antimicrobial activity and less weight loss compared to the control samples, and γ-irradiation minimized their decay and firmness during 12 d of storage [ 171 ].…”

Section: Essential Oils In Chitosan-derived Food Packaging Materialsmentioning

confidence: 99%

Current Trends in the Utilization of Essential Oils for Polysaccharide- and Protein-Derived Food Packaging Materials

et al. 2022

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Essential oils (EOs) have received attention in the food industry for developing biopolymer-derived food packaging materials. EOs are an excellent choice to replace petroleum-derived additives in food packaging materials due to their abundance in nature, eco-friendliness, and superior antimicrobial and antioxidant attributes. Thus far, EOs have been used in cellulose-, starch-, chitosan-, and protein-based food packaging materials. Biopolymer-based materials have lower antioxidant and antibacterial properties in comparison with their counterparts, and are not suitable for food packaging applications. Various synthetic-based compounds are being used to improve the antimicrobial and antioxidant properties of biopolymers. However, natural essential oils are sustainable and non-harmful alternatives to synthetic antimicrobial and antioxidant agents for use in biopolymer-derived food packaging materials. The incorporation of EOs into the polymeric matrix affects their physicochemical properties, particularly improving their antimicrobial and antioxidant properties. EOs in the food packaging materials increase the shelf life of the packaged food, inhibit the growth of microorganisms, and provide protection against oxidation. Essential oils also influence other properties, such as tensile, barrier, and optical properties of the biopolymers. This review article gives a detailed overview of the use of EOs in biopolymer-derived food packaging materials. The innovative ways of incorporating of EOs into food packaging materials are also highlighted, and future perspectives are discussed.

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Section: Essential Oils In Chitosan-derived Food Packaging Materialsmentioning

confidence: 99%

Current Trends in the Utilization of Essential Oils for Polysaccharide- and Protein-Derived Food Packaging Materials

et al. 2022

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“…More recently, the effect of chitosan-essential oils-AgNP nanocomposite films on the shelf life of strawberries was examined by Shankar et al (2021), with films showing strong antimicrobial activity against pathogenic bacteria ( E. coli , L. monocytogenes , Salmonella ) as well as a fungal strain ( A. niger ). The chitosan-AgNP nanocomposites reduced E. coli viable counts by 3.4-log CFU/g, L. monocytogenes by 3.0-log CFU/g, Salmonella by 1.4-log CFU/g, and A. niger by 0.5-log CFU/g after 16 h exposure [ 104 ].…”

Section: Comparison Of Different Chitosan and Chitosan-metal Nanocompositesmentioning

confidence: 99%

Antimicrobial Biodegradable Food Packaging Based on Chitosan and Metal/Metal-Oxide Bio-Nanocomposites: A Review

2021

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Finding a practical alternative to decrease the use of conventional polymers in the plastic industry has become an acute concern since industrially-produced plastic waste, mainly conventional food packaging, has become an environmental crisis worldwide. Biodegradable polymers have attracted the attention of researchers as a possible alternative for fossil-based plastics. Chitosan-based packaging materials, in particular, have become a recent focus for the biodegradable food packaging sector due to their biodegradability, non-toxic nature, and antimicrobial properties. Chitosan, obtained from chitin, is the most abundant biopolymer in nature after cellulose. Chitosan is an ideal biomaterial for active packaging as it can be fabricated alone or combined with other polymers as well as metallic antimicrobial particles, either as layers or as coacervates for examination as functional components of active packaging systems. Chitosan-metal/metal oxide bio-nanocomposites have seen growing interest as antimicrobial packaging materials, with several different mechanisms of inhibition speculated to include direct physical interactions or chemical reactions (i.e., the production of reactive oxygen species as well as the increased dissolution of toxic metal cations). The use of chitosan and its metal/metal oxide (i.e., titanium dioxide, zinc oxide, and silver nanoparticles) bio-nanocomposites in packaging applications are the primary focus of discussion in this review.

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“…Silver nanoparticles (AgNP) have long been used as antimicrobial agents against various pathogenic microorganisms, particularly food-borne bacterial strains [11,12]. Therefore, AgNPs have also been widely used as fillers for antibacterial food packaging nanocomposite films [13,14]. AgNPs were synthesized by various methods [11,12].…”

Section: Introductionmentioning

confidence: 99%

Pine Needle (Pinus densiflora) Extract‐Mediated Synthesis of Silver Nanoparticles and the Preparation of Carrageenan‐Based Antimicrobial Packaging Films

Kim

Bang

Yoon

et al. 2022

Journal of Nanomaterials

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Silver nanoparticles (AgNPs) were prepared using a pine needle extract-mediated synthesis method. The X-ray diffraction (XRD) spectrum showed a characteristic peak of silver, indicating that crystalline silver nanoparticles were formed. The synthesized AgNPs were spherical and had a uniform size of 63.9 ± 2.1 nm with a narrow size distribution. The AgNPs have been used as functional nanofillers in the manufacture of carrageenan-based functional nanocomposite films. Field emission scanning electron microscopy (FE-SEM) confirmed that AgNPs were uniformly dispersed in the carrageenan polymer matrix. The addition of AgNPs to the Carr film affected the surface color, mechanical, water vapor barrier, and surface wettability properties and significantly improved the UV blocking properties of the nanocomposite films. In addition, the carrageenan/AgNP composite films showed strong antioxidant activity and potent antibacterial activity against both Gram-positive (S. aureus) and Gram-negative (E. coli O157: H7) bacteria. The carrageenan/AgNP film with UV protection, antioxidant, and antibacterial activity can be used as active food packaging material to extend the shelf life of packaged food.

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Effect of chitosan/essential oils/silver nanoparticles composite films packaging and gamma irradiation on shelf life of strawberries

Cited by 105 publications

References 46 publications

Current Trends in the Utilization of Essential Oils for Polysaccharide- and Protein-Derived Food Packaging Materials

Current Trends in the Utilization of Essential Oils for Polysaccharide- and Protein-Derived Food Packaging Materials

Antimicrobial Biodegradable Food Packaging Based on Chitosan and Metal/Metal-Oxide Bio-Nanocomposites: A Review

Pine Needle (Pinus densiflora) Extract‐Mediated Synthesis of Silver Nanoparticles and the Preparation of Carrageenan‐Based Antimicrobial Packaging Films

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