Optimization of spray drying operating conditions for production of functional milk powder encapsulating bee pollen

This study was aimed to develop functional milk powder encapsulating bee pollen grains. The manufacturing of functional milk powder was successfully optimized by Box–Behnken design using inlet air temperature (180–200 °C), feed rate (8–10 mL min−1), and bee pollen (5%–15%) as independent variables. The optimum spray drying conditions for obtaining milk powder were 187.58 °C inlet air temperature, 8.94 mL min−1 feed flow rate, and 8.04% bee...