Figure 1. Variation of HLB based on different oil
mixtures.
Results show that the influence of salmon oil is very
important on the melting onset. In addition, interactions
between rapeseed oil/salmon oil and miglyol/salmon oil
are noticeable.
We can increase emulsion stability by decreasing droplet
size. In this study, the optimal size distribution is
130 ± 10 nm for an HLB of 12.5 ± 0.08.
The distribution of droplet size is related to the polydispersity
index (PdI). When this index is lower than
0.25, all droplets have a similar size [19]. Study results
show an average PdI of 0.16 ± 0.046, indicating a good
stability of the emulsions.
For a nano-emulsion at 130 nm, the turbidity factor is
about 9900 NUT (Nephelometric Turbidity Units) and
appears correlated to the proportion of rapeseed oil present
in the emulsion. In addition,