The phase inversion temperature method was studied to form lemon oil nanoemulsions.
The combination of sodium caseinate (NaCas) and Tween 20 was studied.
The combination reduced emulsion turbidity and droplet size stable for 15 days.
NaCas was present on the interface, but at a lower amount with more Tween 20.
NaCl increased emulsion turbidity at 0.2–0.4 M, but not at 0.6–0.8 M.