Shellac Gum/Carrageenan Alginate-Based Core-Shell Systems Containing Peppermint Essential Oil Formulated by Mixture Design Approach.

ABSTRACT: Peppermint essential oil is encapsulated by inverse ionotropic gelation in core-shell systems, composed of alginate (ALG) alone or alginate with shellac gum (SHL) and/or carrageenan (CRG). A mixture design approach is used to evaluate the correlation between the formulation composition and some properties of the final products. Immediately after the preparation, capsules appear rounded with a smooth and homogeneous surface, having a similar particle size ranging from 3.8 mm to 4.5 mm. The drying process, carried out at 40 °C in an oven for 3 h, reduces capsules' diameters by at least 50% and has a negative impact on the shape of the systems because they lose their regular shape and their external membrane partially collapses. The peppermint essential oil content of dried capsules is betwee

SUBMITTER: Foglio Bonda A 

PROVIDER: S-EPMC8544295 | biostudies-literature | 2021 Oct

REPOSITORIES: biostudies-literature