Carvacrol loaded halloysite coatings for antimicrobial food packaging applications

Taş, Buket Alkan; Sehit, Ekin; Taş, Cüneyt Erdinç; Ünal, Serkan; Cebeci, Fevzi Çakmak; Menceloǵlu, Yusuf́ Z.; Ünal, Hayriye

doi:10.1016/j.fpsl.2019.01.004

Cited by 69 publications

(18 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Obtained carvacrol-loaded HNTs (CHNT) were washed with ethanol to remove the residual carvacrol from the HNT surface. Finally, CHNTs were dried at room temperature for 24 h. 42 …”

Section: Materials and Methodsmentioning

confidence: 99%

Purification and Sorting of Halloysite Nanotubes into Homogeneous, Agglomeration-Free Fractions by Polydopamine Functionalization

et al. 2020

Self Cite

View full text Add to dashboard Cite

Halloysite nanotubes (HNTs) have attracted great attention in the field of nanotechnology as natural, high value-added nanomaterials. Despite their significant potential as carriers of active agents and fillers in nanocomposite structures, inhomogeneity of HNTs in terms of length and diameter along with their agglomeration tendency poses important obstacles for the utilization of them in a wider range of applications. Here, a facile, three-step separation protocol that allows the sorting of HNTs into agglomeration-free, uniform size fractions is reported. The protocol consists of coating of HNTs with polydopamine to impart hydrophilicity and aqueous dispersibility, followed by their ultrasonication and centrifugation at varying velocities for size-based separation. Particle size distribution analysis by scanning electron microscopy and dynamic light scattering has demonstrated that the separation protocol resulted in uniform HNT fractions of varying agglomeration states and particle sizes. The highest quality fraction obtained with 18% yield was free of agglomerations and consisted of HNTs of uniform lengths and diameters. The polydopamine coating on HNTs which facilitated the separation was demonstrated to be removed by a simple heat treatment that preserved the crystal structure of HNTs. The impact of the separation protocol on the loading and functionalization capacity of halloysites was investigated. Highest quality HNTs presented 4.1-fold increase in lumen loading and 1.9-fold increase in covalent surface coupling ratios compared to the loading and functionalization ratios obtained with raw HNTs. Similarly, sorted, high-quality HNTs were demonstrated to be better dispersed in a polymeric matrix, resulting in polymeric nanocomposites with significantly enhanced mechanical properties compared to nanocomposites prepared with raw HNTs. The three-step separation protocol presented here provides a toolbox that allows sorting of raw HNTs into uniform fractions of different size ranges, from which HNTs of desired qualities required by different applications can be selected.

show abstract

“…Obtained carvacrol-loaded HNTs (CHNT) were washed with ethanol to remove the residual carvacrol from the HNT surface. Finally, CHNTs were dried at room temperature for 24 h. 42 …”

Section: Materials and Methodsmentioning

confidence: 99%

Purification and Sorting of Halloysite Nanotubes into Homogeneous, Agglomeration-Free Fractions by Polydopamine Functionalization

et al. 2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…Recent development of EOs-coated films includes clove oil-coated LLDPE film (Mulla et al, 2017), Zataria multiflora Bioss. essential oil/zein-coated PP film (Kashiri et al, 2017), and carvacrol-coated LDPE film (Tas et al, 2019).…”

Section: Synthetic Antimicrobials Versus Naturally Occurring Antimicrobialsmentioning

confidence: 99%

Antimicrobial‐coated films as food packaging: A review

Dudley

2021

Comp Rev Food Sci Food Safe

View full text Add to dashboard Cite

Antimicrobial food packaging involves packaging the foods with antimicrobials to protect them from harmful microorganisms. In general, antimicrobials can be integrated with packaging materials via direct incorporation of antimicrobial agents into polymers or application of antimicrobial coating onto polymer surfaces. The former option is generally achieved through thermal film‐making technology such as compression molding or film extrusion, which is primarily suitable for heat‐stable antimicrobials. As a nonthermal technology, surface coating is more promising compared to molding or extrusion for manufacturing food packaging containing heat‐sensitive antimicrobials. In addition, it also has advantages over direct incorporation to preserve the packaging materials’ bulk properties (e.g., mechanical and physical properties) and minimize the amount of antimicrobials to reach sufficient efficacy. Herein, antimicrobial food packaging films achieved through surface coating is explored and discussed. The two components (i.e., film substrate and antimicrobials) consisting of the antimicrobial‐coated films are reviewed as plastic/biopolymer films; and synthetic/naturally occurring antimicrobials. Furthermore, special emphasis is given to different coating technologies to deposit antimicrobials onto film substrate. Laboratory coating techniques (e.g., knife coating, bar coating, and spray coating) commonly applied in academic research are introduced briefly, and scalable coating methods (i.e., electrospinning/spraying, gravure roll coating, flexography coating) that have the potential to bring laboratory‐developed antimicrobial‐coated films to an industrial level are explained in detail. The migration profile, advantages/drawbacks of antimicrobial‐coated films for food applications, and quantitative analyses of the reviewed antimicrobial‐coated films from different aspects are also covered in this review. A conclusion is made with a discussion of the challenges that remain in bringing the production of antimicrobial‐coated films to an industrial level.

show abstract

“…Halloysite-loaded film manufacturing have been made using different techniques that include classical methodologies as casting [16,187,188], compression moulding [187], extrusion [190] or more innovative ones such as electrospinning [24]. Besides, halloysites have also been incorporated in packaging materials as coatings [16,102,103] or inks [189]. Given the advantages described above, HNTs have been also applied in the antimicrobial packaging area.…”

Section: Halloysites Nanotubesmentioning

confidence: 99%

Encapsulation Systems for Antimicrobial Food Packaging Components: An Update

2020

View full text Add to dashboard Cite

Antimicrobial active packaging has emerged as an effective technology to reduce microbial growth in food products increasing both their shelf-life and microbial safety for the consumer while maintaining their quality and sensorial properties. In the last years, a great effort has been made to develop more efficient, long-lasting and eco-friendly antimicrobial materials by improving the performance of the incorporated antimicrobial substances. With this purpose, more effective antimicrobial compounds of natural origin such as bacteriocins, bacteriophages and essential oils have been preferred over synthetic ones and new encapsulation strategies such as emulsions, core-shell nanofibres, cyclodextrins and liposomes among others, have been applied in order to protect these antimicrobials from degradation or volatilization while trying to enable a more controlled release and sustained antimicrobial action. On that account, this article provides an overview of the types of antimicrobials agents used and the most recent trends on the strategies used to encapsulate the antimicrobial agents for their stable inclusion in the packaging materials. Moreover, a thorough discussion regarding the benefits of each encapsulation technology as well as their application in food products is presented.

show abstract

Carvacrol loaded halloysite coatings for antimicrobial food packaging applications

Cited by 69 publications

References 32 publications

Purification and Sorting of Halloysite Nanotubes into Homogeneous, Agglomeration-Free Fractions by Polydopamine Functionalization

Purification and Sorting of Halloysite Nanotubes into Homogeneous, Agglomeration-Free Fractions by Polydopamine Functionalization

Antimicrobial‐coated films as food packaging: A review

Encapsulation Systems for Antimicrobial Food Packaging Components: An Update

Contact Info

Product

Resources

About