Synthesis and characterization of protein microcapsules for eugenol storage

Eugenol, an essential oil which has antioxidant and antimicrobial properties, has a limited applicability due the high volatility; in this scenario, microencapsulation is a technology that protects the substances from the environment with a physical barrier. This work aims to study the combination of the bovine serum albumin and rice bran protein with carrageenan as encapsulating agents, observing the encapsulation efficiency on eugenol. The spray drying process was used for encapsulation. The process was characterized by thermal and spectroscopy analysis that shows the presence of eugenol encapsulated. Determined by UHPLC and TG, encapsulation efficiency of eugenol was up to 79.4%.