Abstract：
Sunflower oil (SFO) and Flaxseed oil (FSO) were microencapsulated using simple and complex coacervation techniques with Opuntia (Cactaceae) mucilage (Mu) and with a combination of Mu with chitosan (Chit). The encapsulation efficiency (EE) of SFO and FSO in emulsions using Mu/Chit shells was 96.7% and 97.4%, respectively. Morphological studies indicated successful entrapment of oils in core shells with particle sizes ranging from 1396 ± 42.4 to 399.8 ± 42.3 nm. The thermogravimetric analyses demonstrated enhanced core protection with thermal stability noted for microcapsules regardless of encapsulation method. The stability of the microcapsules, during in vitro digestion was studied. The obtained results revealed that the microcapsules are intact in oral conditions and have a slow release of oil over stomach digestion and rapid release in the small intestine. The results showed that Mu and Mu/Chit coacervates can be used as effective carrier systems to encapsulate sensitive ingredients and functional oils.
摘要：
使用简单和复杂的凝聚技术将向日葵油（SFO）和亚麻籽油（FSO）与仙人掌（仙人掌科）粘液（Mu）以及Mu与壳聚糖（Chit）的组合进行微囊化。使用Mu/Chit壳的乳液中SFO和FSO的包封率（EE）为96.7％和97.4％，分别。形态学研究表明，油成功地捕获在核壳中，粒径范围为1396±42.4至399.8±42.3nm。热重分析表明，无论采用何种包封方法，微胶囊的热稳定性都得到了增强的核心保护。微胶囊的稳定性，在体外消化过程中进行了研究。所获得的结果表明,微胶囊在口腔条件下是完整的,并且在胃消化中具有油的缓慢释放和在小肠中的快速释放。结果表明，Mu和Mu/Chit凝聚体可以作为有效的载体体系来包封敏感成分和功能油。
