Chemical modification of TiO2 with essential oils for its application in active packaging

Martínez-Aguilar, Verónica; Angel-Monroy, M. del; Balderas, G. Sánchez; Flores-Martínez, N.L.; Pérez, Elı́as; González-Calderón, J. A.

doi:10.1007/s00289-022-04178-2

Cited by 3 publications

(4 citation statements)

References 71 publications

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“…Something interesting that can be observed is that the PLA-SiO 2 system increased its inhibition percentage by 60% compared to that obtained by the nanoparticles; this could be because the PLA used in white color and has TiO 2 in its composition which gives it that coloration, so it is assumed that TiO 2 is helping to inhibit free radicals, that is why these increases were observed, Alizadeh et al [37] reported that at a minimum concentration of 25 mg/mL TiO 2 pure is able to inhibit 20% of DPPH. Likewise, Martínez et al [40] found that at a concentration of 4 mg/mL, TiO 2 had a 20% inhibition. Alam et al [78] reported that at 20 µg/mL, TiO 2 presented 14% inhibition to DPPH.…”

Section: Antioxidant Activity In Filmsmentioning

confidence: 95%

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Evaluation of the Antioxidant and Antimicrobial Potential of SiO2 Modified with Cinnamon Essential Oil (Cinnamomum Verum) for Its Use as a Nanofiller in Active Packaging PLA Films

et al. 2023

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One of the main causes of food spoilage is the lipid oxidation of its components, which generates the loss of nutrients and color, together with the invasion of pathogenic microorganisms. In order to minimize these effects, active packaging has played an important role in preservation in recent years. Therefore, in the present study, an active packaging film was developed using polylactic acid (PLA) and silicon dioxide (SiO2) nanoparticles (NPs) (0.1% w/w) chemically modified with cinnamon essential oil (CEO). For the modification of the NPs, two methods (M1 and M2) were tested, and their effects on the chemical, mechanical, and physical properties of the polymer matrix were evaluated. The results showed that CEO conferred to SiO2 NPs had a high percentage of 2,2-diphenyl-l-picrylhydrazyl (DPPH) free radical inhibition (>70%), cell viability (>80%), and strong inhibition to E. coli, at 45 and 11 µg/mL for M1 and M2, respectively, and thermal stability. Films were prepared with these NPs, and characterizations and evaluations on apple storage were performed for 21 days. The results show that the films with pristine SiO2 improved tensile strength (28.06 MPa), as well as Young’s modulus (0.368 MPa) since PLA films only presented values of 27.06 MPa and 0.324 MPa, respectively; however, films with modified NPs decreased tensile strength values (26.22 and 25.13 MPa), but increased elongation at break (from 5.05% to 10.32–8.32%). The water solubility decreased from 15% to 6–8% for the films with NPs, as well as the contact angle, from 90.21° to 73° for the M2 film. The water vapor permeability increased for the M2 film, presenting a value of 9.50 × 10−8 g Pa−1 h−1 m−2. FTIR analysis indicated that the addition of NPs with and without CEO did not modify the molecular structure of pure PLA; however, DSC analysis indicated that the crystallinity of the films was improved. The packaging prepared with M1 (without Tween 80) showed good results at the end of storage: lower values in color difference (5.59), organic acid degradation (0.042), weight loss (24.24%), and pH (4.02), making CEO-SiO2 a good component to produce active packaging.

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Section: Antioxidant Activity In Filmsmentioning

confidence: 95%

“…Two methodologies were used [40] with minor modifications for this work. On the one hand, the first method (M1) consisted of a mixture of CEO with SiO 2 in a 1:1 ratio, and 5 mL of ethanol was used for homogenization.…”

Section: Chemical Modification Of Siomentioning

confidence: 99%

Evaluation of the Antioxidant and Antimicrobial Potential of SiO2 Modified with Cinnamon Essential Oil (Cinnamomum Verum) for Its Use as a Nanofiller in Active Packaging PLA Films

et al. 2023

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“…Among them, Al 2 O 3 loaded with CEO exhibited a high inhibition value of 55%, followed by CaCO 3 with CEO at 35% and TiO 2 with CEO at 28%. Pure CEO demonstrates an 80% inhibition of the DPPH radical [40], indicating that approximately 30% of this inhibition is captured by the Al 2 O 3 nanoparticles due to a strong interaction between them. In contrast, the pure nanoparticles exhibited low inhibition percentages, suggesting that this evaluated property can be transferred to the nanoparticles with a higher concentration, resulting in a better inhibitory effect.…”

Section: Antioxidant Activitymentioning

confidence: 99%

Chemically Modified Nanoparticles for Enhanced Antioxidant and Antimicrobial Properties with Cinnamon Essential Oil

López-Cano,

Martínez-Aguilar,

Peña-Juárez

et al. 2023

Antioxidants

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We explored the potential of different nanoparticles (TiO2, CaCO3, and Al2O3), considering their pure form and modified with cinnamon essential oil (CEO). These materials were characterized using various techniques, including FTIR spectroscopy, XRD analysis, TGA, and SEM. The interaction between CEO and nanoparticles changed depending on the nanoparticle type. Al2O3 nanoparticles exhibited the strongest interaction with CEO, increasing their antioxidant capacity by around 40% and their transfer of antimicrobial properties, particularly against Gram-negative bacteria. In contrast, TiO2 and CaCO3 nanoparticles showed limited interaction with CEO, resulting in lower antioxidant capacity and antimicrobial activity. Incorporating pure and CEO-modified nanoparticles into polylactic acid (PLA) films improved their mechanical and thermal properties, which are suitable for applications requiring greater strength. This research highlights the potential of metal oxide nanoparticles to enhance the antimicrobial and antioxidant capabilities of polymers. In addition, incorporating cinnamon essential oil can increase the antioxidant and antimicrobial effectiveness of the metal oxide nanoparticles and improve the mechanical and thermal properties of PLA films. Thus, these PLA films exhibit favorable characteristics for active packaging applications.

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“…The membranes of modified TiO 2 had better UV‐blocking properties than pure PLA membranes. Martínez‐Aguilar et al 35 used cinnamon essential oil (CEO) to chemically modify the TiO 2 surface. The modified TiO 2 was incorporated into the PLA matrix to prepare films with reduced water vapor permeability, lower dissipation energy, reduced solubility, increased contact angle and tensile strength, and elongation.…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of poly(lactic acid)/g‐titanium dioxide electrospinning membranes based on thiol‐ene click chemistry

Shao

Zhen

Chen³

2022

Polymers for Advanced Techs

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The g‐titania functional additives were prepared via thiol‐ene click chemical reaction, and then the polylactic acid/g‐titania nanofiber membrane was prepared via electrospinning technology. Characterization via scanning electron microscopy and nitrogen adsorption/desorption showed that the average fiber diameter of the TP4 fiber membrane was 489 nm, the specific surface area was 34.69 m2·g−1, and the average pore size was 22.31 nm. The adsorption mechanism, photocatalytic degradation performance, and reusability of polylactic acid/g‐titania nanofibrous membranes were characterized. The results showed that the adsorption of methylene blue by TP4 nanofiber membrane followed a pseudo‐second‐order kinetic model, which could be represented by the Langmuir isotherm model, and the maximum adsorption capacity was 35.44 mg·g−1. In addition, the photocatalytic degradation of methylene blue by TP4 nanofiber membrane followed a first‐order kinetic model and exhibited high reusability. Therefore, polylactic acid/g‐titania nanofiber membrane, as an efficient dye removal material, shows a good application prospect in wastewater treatment.

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Chemical modification of TiO2 with essential oils for its application in active packaging

Cited by 3 publications

References 71 publications

Evaluation of the Antioxidant and Antimicrobial Potential of SiO2 Modified with Cinnamon Essential Oil (Cinnamomum Verum) for Its Use as a Nanofiller in Active Packaging PLA Films

Evaluation of the Antioxidant and Antimicrobial Potential of SiO2 Modified with Cinnamon Essential Oil (Cinnamomum Verum) for Its Use as a Nanofiller in Active Packaging PLA Films

Chemically Modified Nanoparticles for Enhanced Antioxidant and Antimicrobial Properties with Cinnamon Essential Oil

Preparation and properties of poly(lactic acid)/g‐titanium dioxide electrospinning membranes based on thiol‐ene click chemistry

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