Microencapsulation of Elsholtzia ciliata Herb ethanolic extract by spray-drying: effect of different encapsulating agents for spray-dried microcapsulesquality and encapsulation efficiency of rosmarinic acid, chlorogenic acid, and apigenin

Abstract

Introduction. Spray-drying is the most popular encapsulation method used for the stabilization and protection of biologically active compounds from various environmental conditions, such as oxidation, moisture, pH, and temperature. The aim of this work was to study the effects of different wall materials on encapsulation efficiency (EE) of rosmarinic acid (RA), chlorogenic acid (CA), and apigenin (AP) from Elsholtzia ciliata herb. Materials and methods. Dried Elsholtzia herb ("Zolynu namai", Vilnius, Lithuania). Wall material compounds: sodium caseinate (SCAS), skim milk (SKIM), maltodextrin (MD), gumarabic (GUM), betacyclodextrin (BCYC) were purchased from Sigma-Aldrich, Germany, resistant-maltodextrin (RMD) (Promitor 85™) was purchased from Bang& Bonsomer, Vilnius, Lithuania. [...]