期刊
INTERNATIONAL JOURNAL OF PHARMACEUTICS
卷 406, 期 1-2, 页码 153-162出版社
ELSEVIER
DOI: 10.1016/j.ijpharm.2010.12.039
关键词
Barley protein; Microparticle; Nano-encapsulation; Lipophilic bioactive compounds; Controlled release
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Alberta Innovates - Bio Solutions
- Alberta Crop Industry Development Fund Ltd. (ACIDF)
- Alberta Barley Commission
Novel microparticles (3-5 mu m) were created by pre-emulsifying barley proteins with a homogenizer followed a microfluidizer system. These microparticles exhibited a high oil carrying capacity (encapsulation efficiency, 93-97%; loading efficiency, 46-49%). Microparticle degradation and bioactive compound release behaviours were studied in the simulated gastro-intestinal (GI) tract. The data revealed that nano-encapsulations (20-30 nm) were formed as a result of enzymatic degradation of barley protein microparticle bulk matrix in the simulated gastric tract. These nano-encapsulations delivered beta-carotene to a simulated human intestinal tract intact, where they were degraded by pancreatic enzymes and steadily released the beta-carotene. These uniquely structured microparticles may provide a new strategy for the nutraceutical and pharmaceutical industries to develop targeted delivery systems for lipophilic bioactive compounds. (c) 2011 Elsevier B.V. All rights reserved.
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