In order to choose appropriate emulsifier, we prepare different WPI concentration of 1.0-2.0 wt% and found the emulsion formulated with 1.5 wt% WPI had smaller size and medimum zeta potential, so it was described to the optimize condition. For clarity, we have also revised the corresponding positions in the manuscript.
The results of the manuscript are reproducible using the information in the methods section, but some minor explanations are missing.