Abstract
The aim of this study was to evaluate the physical and functional properties, in vitro digestibility, and storage stability of microencapsulated bioactive products from the Moringa stenopetala leaf extract using spray- and freeze-drying techniques. The techniques and the coating materials used had significant (p < 0.05) effects on these properties. The total phenolic content (TPC), total flavonoid content (TFC), antioxidant activity, and digestibility of the freeze-dried microencapsulates were significantly higher than those of the spray-dried microencapsulates. The storage stability of the spray-dried microencapsulate was better than that of the freeze-dried one. Even though the TPC, TFC, and antioxidant activity of the freeze-dried microencapsulate were greater than those of the spray-dried one, its EE and storage stability were lower. Therefore, the spray-drying technique with MDHP coating can be used for the microencapsulation of the bioactive compounds from the M. stenopetala leaves extract.
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