Microencapsulation of thyme oil by coacervation

Martins, Isabel; Rodrigues, S. Sofia M.; Barreiro, María Filomena; Rodrigues, Alírio E.

doi:10.3109/02652040802646599

Cited by 63 publications

(36 citation statements)

References 15 publications

(5 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is clear that more research needs to be conducted to investigate the retention of natural antimicrobial agents when high temperatures are applied during processing. Microencapsulation is one important technique that can reduce the loss or the inactivation of antimicrobial agents by protecting volatile and heat‐sensitive agents during thermal processing (Martins and others ; Guarda and others ; Joo and others ). The stability of microencapsulated antimicrobial agent during processing and storage is certainly a challenge and there are various possible negatives in such processes, including high cost as well as the complexity of the production process (Zuidam and Shimoni ).…”

Section: Pla Antimicrobial Packagingmentioning

confidence: 99%

A Review of Poly(Lactic Acid)‐Based Materials for Antimicrobial Packaging

Tawakkal

Cran

Miltz

et al. 2014

Journal of Food Science

253

131

View full text Add to dashboard Cite

Poly(lactic acid) (PLA) can be synthesized from renewable bio-derived monomers and, as such, it is an alternative to conventional petroleum-based polymers. Since PLA is a relatively new polymer, much effort has been directed toward its development in order to make it an acceptable and effective option to the more traditional petroleumbased polymers. Commercially, PLA has received considerable attention in food packaging applications with a focus on films and coatings that are suitable for short shelf life and ready-to-eat food products. The potential for PLA to be used in active packaging has also been recognized by a number of researchers. This review focuses on the use of PLA in antimicrobial systems for food packaging applications and explores the engineering characteristics and antimicrobial activity of PLA films incorporated and/or coated with antimicrobial agents.

show abstract

Section: Pla Antimicrobial Packagingmentioning

confidence: 99%

A Review of Poly(Lactic Acid)‐Based Materials for Antimicrobial Packaging

Tawakkal

Cran

Miltz

et al. 2014

Journal of Food Science

253

131

View full text Add to dashboard Cite

show abstract

“…The exposure of labile biomolecules (vitamins, essential oils, colorants) to extreme conditions leads them to degradation . Essential oils have some properties such as strong flavour and low oxidative stability, thus need to be encapsulated in a shell material in order to reduce oxidative degradation, control the release rate and also improve shelf life of these materials . In recent developments in the flavoring and food industries, microencapsulation of lipophilic bioactive compounds has received tremendous interest .…”

Section: Introductionmentioning

confidence: 99%

Antioxidant and antimicrobial properties of thyme essential oil encapsulated in zein particles

Koc

Gökbulut

Sislioglu

et al. 2015

Flavour & Fragrance J

View full text Add to dashboard Cite

Zein has been used successfully for encapsulation of functional foods. Thyme essential oil was encapsulated in zein particles by liquid-liquid dispersion method. Functional properties of thyme essential oil can be enhanced by encapsulation technology. Based on the SEM images, size of the particles was in micron scale. A centrifugation step was applied to separate encapsulated particles during production. This treatment caused some differences in structural and functional properties. The highest encapsulation efficiency value of 97.02 % was achieved at 503 × g for 10 min centrifugation. Interaction time between samples and DPPH radicals was extended by encapsulation. Advantage of encapsulation in terms of antioxidant actions was highlighted by Rancimat test. A fast release rate of thyme essential oil encapsulated in zein was observed in triacylglycerols media. Antimicrobial activity of encapsulated thyme essential oil was lower than that of free form in 24 h incubation. A better encapsulation efficiency rate was obtained compared to reported values. Rancimat test can be effectively used to measure antioxidant activity when essential oils are used as antioxidants in encapsulated form. A fast release rate of thyme essential oil encapsulated in zein was observed in TAGs media.

show abstract

“…This core/shell structure confers to microcapsules many properties, such as the targeting of active ingredients to specific sites, the protection of the active component in a single mixture, increased environmental stability, the mixing of immiscible and incompatible materials, and the conversion of liquids or tacky solids to free-flowing powders. 1 These advantages enlarge the wide application of microencapsulation, such as in carbonless copying paper, 2 food additives, 3 pharmaceuticals, 4 cosmetics, 5 insecticides, 6 catalysts, 7 and electrophoretic display. 8,9 One of the microencapsulation methods often used is in situ polymerization with amino resins, such as urea and melamine, which form the capsule wall by condensation polymerization with formaldehyde 10,11 because of their low cost and easy operation.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of enhanced urea–formaldehyde resin microcapsules doped with nanotitania

Niu

Yangshan

Ding

et al. 2011

J of Applied Polymer Sci

View full text Add to dashboard Cite

Urea-formaldehyde (UF) resin microcapsules doped with TiO 2 nanoparticles were prepared by in situ polymerization, and the properties of the microcapsules, such as the surface morphologies, thermal properties, and chemical elemental composition, were measured by optical microscopy, scanning electron microscopy, thermogravimetric analysis, and energy-dispersive X-ray spectrometer analysis. The effects of the presence of ammonium chloride and its concentration and the concentrations of UF resin prepolymer and TiO 2 nanoparticles during the reaction and deposition of UF on the microcapsule surface on the properties of the microcapsules were investigated. Enhanced UF resin microcapsules with more stability and mechanical strength could be obtained under the optimal conditions.

show abstract

Microencapsulation of thyme oil by coacervation

Cited by 63 publications

References 15 publications

A Review of Poly(Lactic Acid)‐Based Materials for Antimicrobial Packaging

A Review of Poly(Lactic Acid)‐Based Materials for Antimicrobial Packaging

Antioxidant and antimicrobial properties of thyme essential oil encapsulated in zein particles

Synthesis of enhanced urea–formaldehyde resin microcapsules doped with nanotitania

Contact Info

Product

Resources

About