Description
Pre-dissociation of acetic acid enhances hydrogen bonding with aqueous phase for more stable oil dispersion.
Technical
Early acid introduction lowers interfacial tension between phases by protonating hydroxyl groups on polyphenols (particularly quercetin glycosides in parsley), creating nucleation sites for oil droplet formation during shear.
Culinary Significance
Prevents vinaigrette-style separation in herb sauces, allowing thicker texture without gums or starches.
Science
Primary Reaction
Proton transfer to phenolic compounds
Parameters
Temperature
15°C optimal
12°C to 18°C range
Time
15 minutes
5 minutes – 30 minutes
Equipment
Glass mixing bowl (prevents metal-catalyzed oxidation)Balloon whisk (creates optimal shear profile)