Duong, T.N.D., Hoang, Q.B. and Do, L.H.T. 2021. Optimization of the encapsulation of the mixture made from flesh and peel pitaya extract by spray drying. CTU Journal of Innovation and Sustainable Development . 13, 3 (Nov. 2021), 58-65. DOI:https://doi.org/10.22144/ctu.jen.2021.041.