Carboxymethyl cellulose-based functional film integrated with chitosan-based carbon quantum dots for active food packaging applications

Riahi, Zohreh; Rhim, Jong‐Whan; Bagheri, Reza; Pircheraghi, Gholamreza; Lotfali, Ensieh

doi:10.1016/j.porgcoat.2022.106794

Cited by 50 publications

(13 citation statements)

References 51 publications

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“…To investigate the mechanisms of antibacterial and ethylene scavenging action of CNF-based films, we estimated the ROS generation potential through fluorescence measurements by estimating HTPA generation. 59 The results are shown in Figure 7b. Terephthalic acid (TPA) reacts with photogenerated • OH radicals to form fluorescent 2-hydroxyterephthalic acid (HTPA).…”

Section: Resultsmentioning

confidence: 96%

“…Consequently, the higher ethylene scavenging and antibacterial activity of TNT-Cu 2 O compared to other nanoparticles (Figures S5, S6, Supporting Information) is attributed to the efficient ROS generation under visible light, which shows excellent functional properties in CNF/TNT-Cu 2 O films. To investigate the mechanisms of antibacterial and ethylene scavenging action of CNF-based films, we estimated the ROS generation potential through fluorescence measurements by estimating HTPA generation . The results are shown in Figure b.…”

Section: Resultsmentioning

confidence: 99%

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Cellulose Nanofiber-Based Ethylene Scavenging Antimicrobial Films Incorporated with Various Types of Titanium Dioxide Nanoparticles to Extend the Shelf Life of Fruits

Riahi

Ezati

Rhim

et al. 2022

ACS Appl. Polym. Mater.

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TiO2 nanotubes (TNTs) were synthesized hydrothermally and modified by Cu2O using a sol–gel method to provide photocatalytic activity in visible light. Cellulose nanofiber (CNF)-based films were prepared by adding TiO2, TNTs, and Cu2O-modified TNT (TNT-Cu2O). The TiO2-based nanoparticles (TiO2, TNTs, and TNT-Cu2O) were uniformly distributed in the base polymer to make compatible and flexible films. The incorporation of nanoparticles significantly enhanced the UV-shielding properties of the film while slightly decreasing the transparency. Incorporating nanofillers improved the film’s mechanical and water resistance properties depending on the nanoparticle type. The TNT-Cu2O-added CNF film (CNF/TNT-Cu2O) showed the strongest antibacterial activity in visible light, followed by CNF/TNT and CNF/TiO2 films. The CNF-based films were used for tomato packaging to evaluate the ethylene scavenging property of the films. The CNF/TNT-Cu2O film scavenged ethylene gas produced in the headspace during storage, delaying the tomatoes’ discoloration, softening, and weight loss. CNF/TNT-Cu2O films are expected to be excellent composite films for the active packaging application of fruits and vegetables.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

Cellulose Nanofiber-Based Ethylene Scavenging Antimicrobial Films Incorporated with Various Types of Titanium Dioxide Nanoparticles to Extend the Shelf Life of Fruits

Riahi

Ezati

Rhim

et al. 2022

ACS Appl. Polym. Mater.

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“…Lemon fruits were coated with film solutions to test the performance of the film. Lemons coated with CMC/CQD film showed an excellent appearance without mold growth even after 21 days of storage [75].…”

Section: Biomaterial-based Packagingmentioning

confidence: 99%

Applications of Quantum Dots in the Food Industry

Sistani¹,

Shekarchizadeh²

2023

Quantum Dots - Recent Advances, New Perspectives and Contemporary Applications

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Quantum dots (QDs) are spherical particles with a size of <10 nm and, due to their unique properties, have good potential for use in the food industry. Among the various QDs, food industry researchers have highly regarded carbon quantum dots (CQDs) due to their nontoxicity and environmental friendliness. Food analysis is essential for quality assessment as well as safety control. In this regard, QDs-based fluorescence sensors can provide faster, more accurate, more sensitive, and cheaper analysis methods. The use of QDs to detect food additives, pathogens, heavy metals, nutrients, antibiotics, and insecticide residues is investigated in this chapter. QDs in packaging materials, due to their antioxidant, antimicrobial, and inhibitory properties, increase product shelf life, reduce the growth of microorganisms, improve mechanical properties, prevent gases and UV light, and reduce food waste. Their application in improved, active, intelligent, and bio-packaging will also be described. Then, their application in water treatment will be discussed. QDs, due to properties such as high aspect ratio, reactivity, electrostatic, hydrophilic, and hydrophobic interactions, have good potential for use in various water treatment methods, including membranes in filtration, adsorbents, and photocatalysts. Finally, their use to track protein will be investigated.

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“…In addition to the above-mentioned inorganic and organic matrices, other reported matrices, such as nano-hydroxyapatite, metal nanoframes, metal-organic framework, and biopolymer cellulose derivatives, are also worth applying to the matrix-assisted systems ( Zhao et al., 2015 ; Zhao et al., 2017 ; Miao et al., 2022 ; Riahi et al., 2022 ), which can further expand the types of CDs-based DF materials and endow them with diverse optical properties.…”

Section: Structural Regulation Strategy Of Cds-based Df Materialsmentioning

confidence: 99%

Carbon dots-based delayed fluorescent materials: Mechanism, structural regulation and application

et al. 2022

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Carboxymethyl cellulose-based functional film integrated with chitosan-based carbon quantum dots for active food packaging applications

Cited by 50 publications

References 51 publications

Cellulose Nanofiber-Based Ethylene Scavenging Antimicrobial Films Incorporated with Various Types of Titanium Dioxide Nanoparticles to Extend the Shelf Life of Fruits

Cellulose Nanofiber-Based Ethylene Scavenging Antimicrobial Films Incorporated with Various Types of Titanium Dioxide Nanoparticles to Extend the Shelf Life of Fruits

Applications of Quantum Dots in the Food Industry

Carbon dots-based delayed fluorescent materials: Mechanism, structural regulation and application

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