Stabilization and Release of Palm Tocotrienol Emulsion Fabricated Using pH-Sensitive Calcium Carbonate

Calcium carbonate (CaCO3) has been utilized as a pH-responsive component in various products. In this present work, palm tocotrienols-rich fraction (TRF) was successfully entrapped self-assembled oil-in-water (O/W) emulsion system by using CaCO3 the stabilizer. The droplet size, viscosity and tocotrienols entrapment efficiency (EE) were strongly affected varying processing (homogenization speed time) formulation (CaCO3 TRF concentrations) parameters. Our findings indicated that combination of 5000 rpm homogenization speed, 15 min time, 0.75% concentration 2% resulted high EE (92.59–99.16%) small size (18.83 ± 1.36 µm). resulting readily released across pH range tested (pH 1–9); with relatively highest release observed at 3. current study presents potential pH-sensitive for delivery tocotrienols.