Suitable coating material for microencapsulation of spray-dried fish oil

This study was conducted to screen the most suitable coating material for the production of microencapsulated fish oil powder using ternary blends of maltodextrin (15, 25% w/w), Arabic gum (2.5, 7.5% w/w), and methylcellulose (0.5, 1.5 % w/w). The physical properties of fish oil emulsion and encapsulated powders were evaluated. Arabic gum (5% w/w) showed the most significant (p<0.05) effect on the surface mean diameter of the droplets in the emulsion. Maltodextrin had the most significant (p<0.05) effect on the centrifuge stability of the emulsion and the amount of surface oil of the powder at 15 and 20 % (w/w) respectively, whereas methylcellulose (0.5%w/w) had the most significant (p