Flaxseed oil - Whey protein isolate emulsions: Effect of high pressure homogenization

► Increasing pressure and number of passes through the homogenizer up to 3 times led to a decrease on the droplet size. ► Emulsions homogenized at higher pressure showed bimodal distribution, indicating droplets coalescence. ► Higher shear and temperature during homogenization led to the formation of protein aggregates of high molecular mass. ► An increase in the formation of primary oxidation products was observed at higher homogenization pressure. ► Formation of primary oxidation products could be explained by the increase in temperature and decrease on the droplet size.