Shell: Cationic polymer (dairy proteins, whey proteins, caseins and fractions thereof, gelatin, corn zein protein, bovine serum, etc.) and Anionic polymer (pectin, carrageenan, alginate, xanthan gum, modified celluloses, carboxymethylcellulose, gum acacia, gum ghatti, gum karaya, gum tragacanth, locust bean gum,etc.)