Characterization and sustained release study of starch-based films loaded with carvacrol: A promising UV-shielding and bioactive nanocomposite film

Mao, Shuo; Li, Fangyu; Zhou, Xiaobin; Lu, Chengwen; Zhang, Tiehua

doi:10.1016/j.lwt.2023.114719

Cited by 26 publications

(9 citation statements)

References 42 publications

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“…The kinetic constant k for the Fickian approximation was also determined as 0.21 h –1/2 . Similar release studies using carvacrol as the active compound have reported semi-Fickian diffusion over 80 h, with complete release at 12 h and first-order kinetics . Indeed, in our study, we hypothesize that the observed Fickian mass transfer kinetics was governed by the interaction of green tea polyphenols and the chitosan–vanillin matrix.…”

Section: Resultssupporting

confidence: 85%

Vanillin Cross-Linked Chitosan Film with Controlled Release of Green Tea Polyphenols for Active Food Packaging

Westlake,

Laabei,

Jiang

et al. 2023

ACS Food Sci. Technol.

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We report a novel cross-linked chitosan composite film containing vanillin, glycerol, and green tea extract. The effects of vanillin-mediated cross-linking and the incorporation of antimicrobial green tea polyphenols were investigated. The cross-linking effect, confirmed by Fourier transform infrared (FTIR) analysis, increased the tensile strength of the biopolymer film to 20.9 ± 3 MPa. The release kinetics of polyphenols from the chitosan–vanillin matrix was studied, and we reported an initial burst release (8 h) followed by controlled release (8 to 400 h). It was found that both vanillin and green tea polyphenols were successful inhibitors of foodborne bacteria, with a minimum inhibitory concentration of the tea polyphenols determined as 0.15 mg/mL (Staphylococcus aureus). These active components also displayed strong antioxidant capacities, with polyphenols quenching >80% of 2,2-diphenyl-1-picrylhydrazyl (DPPH) radicals at all concentrations tested. Degradation results revealed that there was a significant (>85%) mass loss of all samples after being buried in compost for 12 weeks. The biopolymeric films, prepared by solvent casting methods, adhere to green chemistry and waste valorization principles. The one-pot recipe reported may also be applied to other cross-linkers and active compounds with similar chemical functionalities. Based on the obtained results, the presented material provides a promising starting point for the development of a degradable active packaging material.

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Section: Resultssupporting

confidence: 85%

Vanillin Cross-Linked Chitosan Film with Controlled Release of Green Tea Polyphenols for Active Food Packaging

Westlake,

Laabei,

Jiang

et al. 2023

ACS Food Sci. Technol.

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“…The antioxidant capacity of the prepared films was investigated using the DPPH (2,2diphenyl-1-picrylhydrazyl) free radical scavenging assay as explained by Mao et al [32].…”

Section: Film and Organosolv-treated Sample Characterizationmentioning

confidence: 99%

“…The absorbance of the prepared samples was recorded at 517 nm, and the antioxidant activity was calculated as follows [32]:…”

Section: Film and Organosolv-treated Sample Characterizationmentioning

confidence: 99%

Starch biocomposites preparation by incorporating organosolv lignins from potato crop residues

Zolfaghari,

Soltaninejad,

Okoro

et al. 2024

International Journal of Biological Macromolecules

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“…Edible starch films were obtained using carvacrol and thymol as a method of reducing the incidence of anthracnose symptoms in mango and papaya, enhancing fruit quality as long as possible by an additive effect of both molecules [304]. Mao et al [305] reported that carvacrol nano-emulsion caused the formation of a porous structure and an increase in the thickness of the film. Moreover, the incorporation of carvacrol decreased the mechanical properties of the nanocomposites, caused by the interactions between carvacrol and the starch matrix via hydrogen bonding.…”

Section: Ohmentioning

confidence: 99%

A Review on Reinforcements and Additives in Starch-Based Composites for Food Packaging

Muñoz-Gimena,

Oliver-Cuenca,

Peponi

et al. 2023

Polymers

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The research of starch as a matrix material for manufacturing biodegradable films has been gaining popularity in recent years, indicating its potential and possible limitations. To compete with conventional petroleum-based plastics, an enhancement of their low resistance to water and limited mechanical properties is essential. This review aims to discuss the various types of nanofillers and additives that have been used in plasticized starch films including nanoclays (montmorillonite, halloysite, kaolinite, etc.), poly-saccharide nanofillers (cellulose, starch, chitin, and chitosan nanomaterials), metal oxides (titanium dioxide, zinc oxide, zirconium oxide, etc.), and essential oils (carvacrol, eugenol, cinnamic acid). These reinforcements are frequently used to enhance several physical characteristics including mechanical properties, thermal stability, moisture resistance, oxygen barrier capabilities, and biodegradation rate, providing antimicrobial and antioxidant properties. This paper will provide an overview of the development of starch-based nanocomposite films and coatings applied in food packaging systems through the application of reinforcements and additives.

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Characterization and sustained release study of starch-based films loaded with carvacrol: A promising UV-shielding and bioactive nanocomposite film

Cited by 26 publications

References 42 publications

Vanillin Cross-Linked Chitosan Film with Controlled Release of Green Tea Polyphenols for Active Food Packaging

Vanillin Cross-Linked Chitosan Film with Controlled Release of Green Tea Polyphenols for Active Food Packaging

Starch biocomposites preparation by incorporating organosolv lignins from potato crop residues

A Review on Reinforcements and Additives in Starch-Based Composites for Food Packaging

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