Results were analyzed with the JMP software and are listed in
Table 2. The tannin concentration had a very slight influence on
the emulsified volume within the tested range. Its effect was not
significant (p value > 0.5). pH was the parameter which had more
effect on the emulsified volume, as well as its combination with
itself and the ionic strength. It is worth noting that the quadratic
form of I has also an effect (p values < 0.05).