期刊
INTERNATIONAL DAIRY JOURNAL
卷 20, 期 3, 页码 176-181出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.idairyj.2009.09.008
关键词
-
资金
- Canada Research Chairs Program
- Natural Sciences and Engineering Research Council of Canada (NSERC)
Cold-set oil-loaded protein gels based on an emulsifying step followed by Ca2+-induced gelation of pre-denatured beta-lactoglobulin (beta-LG) have been recently developed. In vitro release and stability of a fat-soluble Compound (alpha-tocopherol) therein were investigated in this work. Release of alpha-tocopherol was found to be controlled mainly by matrix erosion due to protein degradation. Compound release and matrix erosion were almost complete after incubation under gastric or intestinal conditions for 6.5 h. However, both processes were basically inhibited upon changing the dissolution medium from the gastric to the intestinal type, possibly due to beta-LG partial hydrolysis products with greater emulsifying capacity anchoring to the surface of gel oil droplets. The stability of released a-tocopherol was apparently unproved by binding to protein and/or hydrolysis products thereof. (C) 2009 Elsevier Ltd. All rights reserved.
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