Optimization and Encapsulation of Phenolic Compounds Extracted from Maize Waste by Freeze-Drying, Spray-Drying, and Microwave-Drying Using Maltodextrin
Hojjat Pashazadeh, Oscar Zannou, Mohamed Ghellam, İlkay Koca, Charis M. Galanakis, Turki M.S. Aldawoud
Foods
Abstract
Cornsilk is maize waste containing phenolic compounds. In this study, freeze-drying, spray-drying, and microwave-drying techniques were evaluated for the encapsulation of cornsilk's phenolic compounds using maltodextrin as wall material. The results of antioxidant properties showed that freeze-drying was more efficient than microwave-drying and spray-drying techniques. The highest recovery of phenolic compounds was obtained with freeze-drying. The microstructure, DSC, and FTIR data showed that the encapsulation process was effective, and freeze-drying was the best drying technique. The physical properties of the microparticles greatly changed with the drying techniques. This study revealed that the phenolic compounds of the cornsilk extract can be successfully encapsulated and valorized.
Extracted Claims
4 claims extracted from this paper into the knowledge graph
encapsulation process was effective using maltodextrin as wall material
“the encapsulation process was effective, and freeze-drying was the best drying technique”
freeze-drying was more efficient than microwave-drying and spray-drying techniques
“freeze-drying was more efficient than microwave-drying and spray-drying techniques”
freeze-drying produced the highest recovery of phenolic compounds
“the highest recovery of phenolic compounds was obtained with freeze-drying”