Journal
FOOD CHEMISTRY
Volume 187, Issue -, Pages 499-506Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2015.04.065
Keywords
Nanoemulsions; Vitamin D-3; Cholecalciferol; Calcifediol; Calcitriol; Digestion; Quillaja saponin; Carrier oil; Bioaccessibility; Bioavailability
Funding
- Cooperative State Research, Extension, Education Service, United State Department of Agriculture, Massachusetts Agricultural Experiment Station [831]
- United States Department of Agriculture, NRI [2011-03539, 2013-03795, 2011-67021, 2014-67021]
- TUBITAK [2214-A]
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The influence of carrier oil type on the bioaccessibility of vitamin D-3 encapsulated within oil-in-water nanoemulsions prepared using a natural surfactant (quillaja saponin) was studied using a simulated gastrointestinal tract (GIT) model: mouth; stomach; small intestine. The rate of free fatty acid release during lipid digestion decreased in the following order: medium chain triglycerides (MCT) > corn oil approximate to fish oil > orange oil > mineral oil. Conversely, the measured bioaccessibility of vitamin D-3 decreased in the following order: corn oil approximate to fish oil > orange oil > mineral oil > MCT. These results show that carrier oil type has a considerable impact on lipid digestion and vitamin bioaccessibility, which was attributed to differences in the release of bioactives from lipid droplets, and their solubilization in mixed micelles. Nanoemulsions prepared using long chain triglycerides (corn or fish oil) were most effective at increasing vitamin bioaccessibility. (C) 2015 Elsevier Ltd. All rights reserved.
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