Dense Coconut Oil‐in‐Water (CO‐Water) Emulsification via a Vortex‐Based Cavitation Device

Abstract In this study, a vortex‐based hydrodynamic cavitation (HC) device was used to produce coconut oil‐in‐water (CO‐water) emulsions. Emulsions were produced at 200 kPa and 25 °C with coconut oil (CO) volume fractions (α o ) of 0.15, 0.30, 0.45, and 0.60. The influence of the CO volume fraction on the droplet size distribution (DSD), Sauter mean diameter ( d 32 ), other characteristic diameters, and droplet breakage efficiency ( η ) was investigated. To examine the influence of dispersed‐phase properties, the DSD profiles of CO‐water were compared with rapeseed oil‐in‐water (RO‐water) emulsions. This study validates the application of a turbidity‐based method for estimating droplet size ( d 32 ) in CO‐water emulsions, demonstrating its potential for real‐time process monitoring.