The efficiency of protein (whey protein isolate) and maltodextrin (DE 10) on spray drying of sugar rich bayberry
juice was compared. No powder was recovered when the bayberry juice was spray dried alone. A small
amount of protein (1%) was efficient (powder recovery>50%) to spray dry the bayberry juice, while a large
amount of maltodextrin (>30%) was needed for the same purpose. The analysis of surface tension, electron
spectroscopy for chemical analysis (ESCA) and glass transition temperature (Tg) revealed that the mechanism
of protein on spray drying of bayberry juice is mainly because of the preferential migration of protein to the
surface of droplets/particles, which reduces adhesive behavior (stickiness) between particles and dryer wall
by the increase in the surface protein coverage of the particles. The mechanism of maltodextrin to decrease
the stickiness is due to the increase in the overall Tg of the bayberry juice powders.