Microencapsulation of Flavors in Carnauba Wax

Abstract

The subject of this study is the development of flavor wax formulations aimed for food and feed products. The melt dispersion technique was applied for the encapsulation of ethyl vanillin in wax microcapsules. The surface morphology of microparticles was investigated using scanning electron microscope (SEM), while the loading content was determined by HPLC measurements. This study shows that the decomposition process under heating proceeds in several steps: vanilla evaporation occurs at around 200 °C, while matrix degradation starts at 250 °C and progresses with maxima at around 360, 440 and 520 °C. The results indicate that carnauba wax is an attractive material for use as a matrix for encapsulation of flavours in order to improve their functionality and stability in products.

Fabrication of Fucoxanthin-Loaded Microsphere(F-LM) By Two Steps Double-Emulsion Solvent Evaporation Method and Characterization of Fucoxanthin before and after Microencapsulation

“…TGA measurements provide data regarding the thermal stability of F-LM and weight loss during heating 41 . TGA also provides information on the content of volatile components such as water or solvents, ash or filler content and decomposition behavior of the materials 42 .…”

4. Emerging application of vanillin microcapsules

“…However, carnauba wax has been employed as wall material for vanillin encapsulation by means of a melt dispersion technique [19].…”

Edible coatings as encapsulating matrices for bioactive compounds: a review

“…Kayaci and Uyar (2012) produced functional capsules matrix, containing vanillin, having prolonged shelf-life and high temperature stability facilitated by cyclodextrin inclusion complexation. Milanovic et al (2010) showed that the release of ethyl vanillin from wax matrix occurs under heating proceeds at different temperatures; vanillin evaporation occurs close to 200°C, while matrix degradation starts at 250°C. The release of catechins from wax capsules at pH 5 was observed after heating the solution at temperature above 80°C.…”