nd results in an increase in their size.
Droplet size distribution of the W/O/W emulsions (WPC and
pectin) was bimodal with a small peak around 141.8 nm (corresponding
to the span 80 or WPC small droplets) and a large peak
around 712.4 nm (corresponding to the double layer of WPC and
pectin) (Fig. 1C). A bimodal emulsion can be regarded as a system
consisting of two different size ranges as the larger particles are
suspended in a continuous fluid containing the smaller particles.
When comparing emulsion size results of W/O nano-emulsion
and W/O/W double emulsions by single WPC and WPC–pectin, it
can be seen that W/O samples had a much smaller D32
(0.831 nm) and D43 (1.089 nm) than W/O/W double emulsions
(Table 2), and differences between these two means were smaller
in W/O emulsions due to a uniform droplet size distribution (single
peak). Also, Sauter mean size was proportional to the bimodal distribution
in W/O/W double emulsions made with WPC–pectin
(Table 2)