Cellulose acetate active films incorporated with oregano ( Origanum vulgare ) essential oil and organophilic montmorillonite clay control the growth of phytopathogenic fungi

Pola, Cícero C.; Medeiros, Éber Antônio Alves; Pereira, Olinto Liparini; Souza, Victor Gomes Lauriano; Otoni, Caio G.; Camilloto, Geany Peruch; Soares, Nilda de Fátima Ferreira

doi:10.1016/j.fpsl.2016.07.001

Cited by 110 publications

(74 citation statements)

References 58 publications

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“…Also, an addition of TO in CS/TO/NaMt sample led to a decreasing of the E value up to 15% and an increasing of the %ε b value up to 48% as compared to the CS/NaMt film. This result is in accordance with the previous reported results (Perdones et al, ; Pola et al, ). These reported results concluded that EOs are acting as plasticizers when they are directly added to the biopolymer matrix.…”

Section: Resultssupporting

confidence: 94%

“…Also, an addition of TO in CS/ TO/NaMt sample led to a decreasing of the E value up to 15% and an increasing of the %ε b value up to 48% as compared to the CS/ NaMt film. This result is in accordance with the previous reported results(Perdones et al, 2016;Pola et al, 2016). These reported results concluded that EOs are acting as plasticizers when they are directly TA B L E 2 Mean value (SD) of modulus of elasticity (E), tensile strength (σ uts ), % elongation at break (ε b ), % weigh swelling, % surface swelling, and water vapor permeability (WVP)…”

supporting

confidence: 92%

“…The use of these compounds to the formulation of edible films and coatings could lead to a decrease of EOs amount needed, while the effectiveness of such oils on film behavior remains constant (Yuan et al, ). In the last few years, there is a plethora of studies where EOs were incorporated in polymers or biopolymers (Atarés & Chiralt, ; Jahed, Khaledabad, Almasi, & Hasanzadeh, ; Khalili et al, ; Paparella et al, ; Pelissari, Grossmann, Yamashita, & Pineda, ; Persico, Ambrogi, Carfagna, & Ferrocino, ; Pola et al, ; Shojaee‐aliabadi et al, ; Sotelo‐Boyás, Correa‐Pacheco, Bautista‐Baños, & Corona‐Rangel, ). The main drawback of a direct EOs incorporation with polymer materials is that during polymer processing the EOs bloom to the surface of the polymer rapidly and they escape via evaporation.…”

Section: Introductionmentioning

confidence: 99%

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The effect of different preparation methods on the development of chitosan/thyme oil/montmorillonite nanocomposite active packaging films

Giannakas

Stathopoulou

Tsiamis

et al. 2019

J Food Process Preserv

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The globally increasing needs for food quantity and quality led industries to invest in packaging methods that enhance the shelf life and quality of foods. Also, the effort to avoid the use of petrochemical or chemical derivatives in the production‐chain increased the exploitation of by‐products and biomass. In this work, the raw materials such as montmorillonite (Mt), the chitosan (CS) which is a sea‐food byproduct, and the natural essential oil extract thyme oil (TO) were combined via two different methods for the development of an advanced nanocomposite active packaging film for foods. In the first method, the so‐called “Solution‐Blending” (SB), a CS/TO solution was blended with sodium–montmorillonite (NaMt) or organomodified‐montmorillonite (OrgMt). In the second method, the so‐called “ModifiedClay” (MC), the TO was adsorbed into NaMt or OrgMt and the produced hybrid was added to CS. The tests indicated that nanocomposite films which were prepared via the MC method are promising materials for active packaging films. Practical applications Nowadays, a lot of effort is spent on finding advanced food conservation methods which extend shelf time, increase quality, and vanish the food odor problems. This study shows that films which are prepared via the modified clay method exhibit high antioxidant behavior and high antimicrobial activity against Escherichia coli. Also, tests on under‐vacuum packaged chicken breast fillets exhibit low lipid oxidation values. Thus, these films/pads are promising for active packaging applications of meat and other food products.

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Section: Resultssupporting

confidence: 94%

“…Also, an addition of TO in CS/ TO/NaMt sample led to a decreasing of the E value up to 15% and an increasing of the %ε b value up to 48% as compared to the CS/ NaMt film. This result is in accordance with the previous reported results(Perdones et al, 2016;Pola et al, 2016). These reported results concluded that EOs are acting as plasticizers when they are directly TA B L E 2 Mean value (SD) of modulus of elasticity (E), tensile strength (σ uts ), % elongation at break (ε b ), % weigh swelling, % surface swelling, and water vapor permeability (WVP)…”

supporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The effect of different preparation methods on the development of chitosan/thyme oil/montmorillonite nanocomposite active packaging films

Giannakas

Stathopoulou

Tsiamis

et al. 2019

J Food Process Preserv

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show abstract

“…For instance, Rodriguez et al [32] elaborated CA/TEC/Cloisite30B nanocomposites in presence of Th or Ci to evaluate the effects of these actives agents on the physical and the antimicrobial properties of the CA-based films. Pola et al [33] prepared antimicrobial CA films by incorporating…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Cellulose acetate/AgNPs-organoclay and/or thymol nano-biocomposite films with combined antimicrobial/antioxidant properties for active food packaging use

Dairi

Ferfera-Harrar

Ramos

et al. 2019

International Journal of Biological Macromolecules

130

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Nano-biocomposite films based on plasticized cellulose acetate/triethyl citrate (CA/TEC) were prepared with silver nanoparticles (AgNPs)/gelatin-modified montmorillonite nanofiller (AgM) and thymol (Th). AgNPs were biosynthesized in situ the clay using Curcuma longa (C. longa) tuber extract. Full characterization of clay and the formulated films was conducted including morphological, physical and functional properties. From the results, the AgNPs showed spherical shape, face centred cubic crystalline structure, and small average size with narrow distribution.Intercalated structure of films was achieved with some exfoliated platelets and clay aggregates. The glass transition temperature (Tg) of CA increased slightly by the added clay but decreased by Th due to its plasticizing effect. Also, the thermal stability of CA was enhanced only by the added clay.Increasing contents of both additives into films declined the optical clarity but enhanced greatly the UV barrier ability. The clay improved the tensile and oxygen barrier properties, while the Th initiated an antagonist effect. Besides, the radical 2,2-diphenyl-1-picrylhydrazyl (DPPH) tests highlighted antioxidant activities of Th-included films. The films showed antimicrobial activities against bacteria and fungi, where Escherichia Coli (E. Coli) was the most sensitive, with an efficient growth inhibition in vapour-phase method. These materials with antimicrobial/antioxidant properties are promising active packaging. ACCEPTED MANUSCRIPTSilver nanoparticles (AgNPs) are arch inorganic products from the nanotechnology field that have gained boundless interests in packaging applications thanks to their unique properties, such as large surface areas, high thermal stability, and antimicrobial activity. In this context, the incorporation of AgNPs into films packaging as an efficient antimicrobial agent to prevent microbial proliferation on food contact surfaces has emerged [9]. However, there is a need to develop a variety of high-yield and low cost green routes for the synthesis of silver nanoparticles.In this way, the biogenic synthesis of AgNPs mediated by plants has gained widespread interest as safer alternative to common methods, namely chemical, microbial, and physical (UV irradiation, microwave processing, thermal decomposition, electrolysis, ect) processes. This eco-friendly process is beneficial due to its cost effectiveness, non-pathogenic and easily scaled up for large-scale synthesis. Also, there is no need to use high temperature, pressure, energy and toxic chemicals for production. In this context, numerous reports have been published [10-12] concerning the biosynthesis of AgNPs using extracts of different plant parts such as root, stem, bark, leaf, fruit, flowers, and latex as natural resources. Phytocompounds in the plant extracts serve generally as reducing and capping agents in the reaction with silver nitrate (AgNO 3 ), a commonly used precursor in silver nanoparticles synthesis. This dual action is originated from the combined effects of biomolec...

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“…To avoid potential risks and meet the consumer need for safe natural foods, natural antioxidants such as plant extracts, tocopherol, or essential oils from herbs and spices can be used as alternatives to synthetic antioxidants, and they will likely be utilized widely in food packaging to confer antioxidant activity [6][7][8][9][10][11]. Several authors reported that better results could be obtained by incorporating the volatile components of essential oils into films or edible coatings, and enhanced results can also be achieved through the encapsulation of essential oils in polymers with edible and biodegradable coatings, sachets, or nano emulsions [12][13][14][15]. Although many essential oils show promising results because of their effects against microorganisms, some limitations were also identified in the application of essential oils in this kind of antimicrobial AP [16].…”

Section: Introductionmentioning

confidence: 99%

Bioactive Characterization of Packaging Foils Coated by Chitosan and Polyphenol Colloidal Formulations

Potrč

Sterniša

Možina

et al. 2020

IJMS

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Polypropylene (PP) and polyethylene (PE) foils, previously activated by ultraviolet (UV)/ozone, were functionalized using chitosan-extract nanoparticle dispersions. A solution of macromolecular chitosan was applied onto foils as a first layer, followed by the deposition of various extracts encapsulated into chitosan nanoparticles, which were attached as an upper layer. Functionalized foils were analyzed from a bioactive point of view, i.e., regarding antimicrobial and antioxidant activity. Desorption kinetics were also studied. Moreover, barrier properties were examined, as the most important parameter influencing antimicrobial and antioxidant activity. Finally, all these properties were correlated with different surface parameters, determined previously, in order to understand if there is any direct correlation between surface elemental composition, surface charge, contact angle, or morphology and a specific bioactive property. It was shown that great bioactive properties were introduced due to the additive effect of antimicrobial chitosan and antioxidative plant extracts. Moreover, oxygen permeability decreased significantly, and the migration of polyphenols and chitosan from the foil surface was below the OML (overall migration limit), which is very important for food industry applications. Furthermore, surface properties of foils influence to some extent the desired bioactivity.

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Cellulose acetate active films incorporated with oregano ( Origanum vulgare ) essential oil and organophilic montmorillonite clay control the growth of phytopathogenic fungi

Cited by 110 publications

References 58 publications

The effect of different preparation methods on the development of chitosan/thyme oil/montmorillonite nanocomposite active packaging films

The effect of different preparation methods on the development of chitosan/thyme oil/montmorillonite nanocomposite active packaging films

Cellulose acetate/AgNPs-organoclay and/or thymol nano-biocomposite films with combined antimicrobial/antioxidant properties for active food packaging use

Bioactive Characterization of Packaging Foils Coated by Chitosan and Polyphenol Colloidal Formulations

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