Microencapsulação de óleo essencial de patchouli e óleo de coco fracionado para aplicação em cosmético

Abstract

Cosmetics are present in everyone´s daily lives. Increasingly, the population´s interest in self-care has aroused, which directly influences the increase in studies related to cosmetics, and especially in the increase in studies in relation to the new technologies present in these products. Microencapsulation, is the technique that consists in the formation of membranes that store the product of interest. It has been widely used in the world of cosmetics for ability to protect and improve the performance of the encapsulated component and release it in a controlled manner, thus allowing new applications for the active of interest. Essential oils have also been a big bet in the world of self-care due to their many interesting properties, such as anti-inflammatory, antioxidant, antibacterial, antifungal action, among others. The objective of this work was the microencapsulation of patchouli essential oil and fractionated coconut oil. To carry out the experiment, the coacervation technique was used through dripping with a needle and sprayer, and by spray drying, both using sodium alginate as cover material. The dripping pendant capsules presented capsules with a spherical shape and porous surface. The capsules formed by 15% CaCl2 had more porous surface, which is a positive point, since the increase in porosuty allows greater release of oil to the external environment. In the experiment using the spray bottle, the capsules showed agglomerations and spherical shapes that were not well defined. The spray drying experiment did not succeed in forming distinct capsules, showing agglomerated filaments and also a porous surface. Finally, the needle drip coacervation technique showed better results, forming a pattern of spherical capsules with a porous surface.