Particle size, PDI, zeta potential and entrapment efficiency of the formulations.

Formulation	Size (nm)	PDI	Zeta potential	EE (%)
Orange oil	111	0.564	−39.2 mV
SPa orange oil	178.7	0.009	−43.9 mV	67.29
NLC	123	0.29	−59 mV
SPa NLC	153	0.18	−60 mV	78.7

^aSP – seaweed polysaccharide.