Study of vitamin E microencapsulation and controlled release from chitosan/sodium lauryl ether sulfate microcapsules 

 - Carbohydrate Polymers. 251, 116988, 2021, DOI: 10.1016/j.carbpol.2020.116988 .
<br/><br/> Potential benefit of microencapsulation is its ability to deliver and protect incorporated ingredients such as vitamin E. Microcapsule wall properties can be changed by adding of coss-linking agents that are usually considered toxic for application. The microcapsules were prepared by a spray-drying technique using coacervation method, by depositing the coacervate formed in the mixture of chitosan and sodium lauryl ether sulfate to the oil/water interface. All obtained microcapsules suspensions had slightly lower mean diameter compared to the starting emulsion (6.85 ± 0.213 ?m), which shows their good stability during the drying process. The choice and absence of cross-linking agents had influence on kinetics of vitamin E release. Encapsulation efficiency of microcapsules without cross-linking agent was 73.17 ± 0.64 %. This study avoided the use of aldehydes as cross-linking agents and found that chitosan/SLES complex can be used as wall material for the microencapsulation of hydrophobic active molecules in cosmetic industry. © 2020 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CHITOSAN<br/>CONTROLLED RELEASE<br/>FORMALDEHYDE<br/>GLUTARALDEHYDE<br/>MICROENCAPSULATION<br/>VITAMIN E