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.

这项研究的目的是评估辣木甜椒微囊生物活性产品的物理和功能特性，体外消化率和储存稳定性。使用喷雾和冷冻干燥技术提取叶提取物。所使用的技术和涂料对这些性能具有显着（p <0.05）影响。冻干微胶囊的总酚含量（TPC），总类黄酮含量（TFC），抗氧化剂活性和消化率均显着高于喷雾干燥微胶囊。喷雾干燥的微胶囊的储存稳定性优于冷冻干燥的微胶囊。即使冷冻干燥的微囊的TPC，TFC和抗氧化活性大于喷雾干燥的微囊，但其EE和贮存稳定性却较低。因此，与MDHP涂料喷雾干燥技术可用于从所述生物活性化合物的微胶囊化M. stenopetala叶提取物。