Fig. 4. Influence of simulated gastrointestinal conditions on the particle charge (fpotential) of corn oil-in-water emulsions stabilized by Tween 20. The emulsions
initially had different droplet diameters (Small, Medium, Large). Different capital
letters mean significant differences (p < 0.05) on the particle charge of an emulsion
between digestion phases. Different lowercase letters mean significant differences
(p < 0.05) on the particle charge between emulsion types (Small, Medium and
Large) within the same digestion phase.