<i>In vivo</i> postprandial bioavailability of interesterified-lipids in sodium-caseinate or chitosan based O/W emulsions
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Date
2015
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Abstract
Recent studies have shown that it should be possible to control lipid bioavailability through food structural approaches. Nevertheless, the gastrointestinal-tract physiological conditions must also be considered. To get a better understanding of this phenomenon, we evaluated the effect of emulsification, as well as the use of sodium caseinate or chitosan, on the postprandial bioavailability of interesterified-lipids in O/W emulsions after oral gastric feeding Sprague-Dawley rats. We verified that emulsification may increase lipid absorption, as determined after feeding sodium-caseinate emulsions. However, this result could not be generalised. Interesterified-lipids that were emulsified with chitosan were equally absorbed as those contained in non-emulsified interesterified-lipids/distilled-water blends. (C) 2014 Published by Elsevier Ltd.
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Keywords
Bioavailability, Emulsion, Interesterification, Sodium caseinate, Chitosan, Structured lipid