Table 2.

Particle size, PDI, and Zeta potential of blank emulsion and RSE-contained emulsion

Nanoemulsions	Particle size (nm)		PDI		ζ-potential (mV)
SO
Blank-SO	276.7 ± 8.0c		0.31 ± 0.13a		− 23.1 ± 0.6e
RSE-SO	293.1 ± 12.6bc		0.30 ± 0.04a		− 10.4 ± 0.2a
HOSO
Blank-HOSO	346.6 ± 18.3a		0.19 ± 0.13a		− 24.7 ± 0.6f
RSE-HOSO	342.9 ± 11.7a		0.21 ± 0.13a		− 10.5 ± 0.3ab
CCO
Blank-CCO	324.4 ± 13.7ab		0.22 ± 0.19a		− 28.4 ± 0.5 g
RSE-CO	299.2 ± 11.4bc		0.25 ± 0.06a		− 13.0 ± 0.4c
HPO
Blank-HPO	290.5 ± 13.0bc		0.24 ± 0.08a		− 21.6 ± 0.4d
RSE-HPO	296.4 ± 5.9bc		0.23 ± 0.07a		− 11.7 ± 0.6bc

Statistical differences were determined by Tukey’s HSD post hoc

Different letters in each column mean a difference at the significant p < 0.05

PDI Polydispersity index