Spray-dried encapsulation of chia essential oil (Salvia hispanica L.) in whey protein concentrate-polysaccharide matrices

► We studied the influence of two different biopolymers blends to determine the stability of O/W emulsions. ► The encapsulation efficiency was higher than 70% for all the microcapsules. ► Increasing total solids content in the emulsions results in a increase in powder particle sizes. ► This study demonstrated that the emulsion stability play a key role in the encapsulation efficiency.