Encapsulation of antioxidant compounds in biopolymer micelles

AbstractThis manuscript presents the method for encapsulation of antioxidant agents in micelles of biopolymeric origin. The role of antioxidant agents is played by tannic acid or birch leaf extract, which is a natural source of polyphenolic compounds. The products were obtained in the form of o/w nanoemulsions. The obtained nanoemulsions were characterized by studying their physicochemical and utility properties. The size and electro-kinetic potential of the micelles were measured by dynamic light scattering (DLS). The creaming index and encapsulation efficiency are also provided. The use of statistical tools enabled analysis of the influence of independent parameters on the limits describing the emulsions’ properties. Nanoemulsions with birch leaf extract reached an encapsulation efficiency equal to 80–90%, which remained quite constant over time. It was possible to obtain nanoemulsions with birch extract that were homogeneous over the whole observation period. The values of electro-kinetic potential ran...