Preparation of Microcapsules Containing Camellia Oil with Heterocoagulation between Chitosan and Oleic Acid

Abstract

It was tried to microencapsulate camellia oil using heterocoagulation between fatty acid dissolved in camellia oil and chitosan dissolved in the continuous water phase. Oleic acid as a fatty acid was dissolved in camellia oil in order to certainly form the microcapsule shell made from oleic acid and chitosan. The microcapsules were observed with optical microscope and characterized about the diameters, ζ-potential, FTIR analysis and adhesion feature on human hair.Microcapsules with the mean diameter in the range from ca. 1.5 µm to 4.5 μm could be prepared with the preparation method presented in this study. The oil droplets of camellia oil charged negatively to be −54.6 mV and the microcapsules charged positively to be 59.6 mV. The microcapsules adhered well on the negatively charged human hair and were kept stably before and after drying at room temperature for 24 h and blowing.

Optimization of a Microencapsulation Process Using Oil-in-Water (O/W) Emulsion to Increase Thermal Stability of Sulforaphane

“…Figure 3A shows the microphotograph of the oil droplets in the oil-in-water emulsion, and Figure 3B shows the dehydrated SFN microcapsules resuspended in an aqueous solution. The average diameter of the oil droplets before dehydration was 6.9 ± 2.3 µm, in the same order of magnitude as that reported by Saito et al [30] for Camellia oil emulsion (equal to 3.9 µm). Zhu et al [31] reported a 3.9 µm for Perilla seed and soybean oils emulsion microcapsules, agreeing with the values obtained in the present work.…”

Encapsulation of Flavours and Fragrances into Polymeric Capsules and Cyclodextrins Inclusion Complexes: An Update

“…The obtained core-shell microcapsules were tested as a dressing material to be applied on hair. Their mean diameters ranged from 1.5 μm to 4.5 μm and were adherent on the surface of human hair, being stable both before and after drying [ 208 ]. A microparticulate system based on the zein and keratin proteins was developed for the release of fragrances on hair.…”