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Influence of Vegetable Oils on Micellization of Lutein in a Simulated Digestion Model

Nidhi, Bhatiwada and Baskaran, V. (2011) Influence of Vegetable Oils on Micellization of Lutein in a Simulated Digestion Model. Journal of the American Oil Chemists' Society.

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Abstract

Lutein and zeaxanthin are selectively accumulated in the macula of the retina, yet their bioavailability is influenced by various dietary factors. Insights regarding the effects of dietary lipids on lutein micellization that is available for absorption are limited. This study investigated the influence of vegetable oils on the relative efficiency of lutein micellization using in vitro digestion procedure. Lutein dispersed in either olive oil (OO), corn oil (CO), soybean oil (SBO), sunflower oil (SFO), groundnut oil (GNO), rice bran oil (RBO) or palm oil (PO) was subjected to simulated gastric and small intestinal digestion. Results showed that the efficiency of micellization of lutein dispersed in olive oil exceeds the other vegetable oils. The percent lutein micellization was in the order of OO[ GNO[RBO[SFO[CO[SBO[PO. In comparison, the values for OO were higher than GNO (11%), RBO (18.3%), SFO (19%), CO (21.7%), SBO (30.5%) and PO (35.2%), respectively. These results suggest that OO rich in oleic acid may favor the incorporation of lutein into micelles at the intestinal level. To conclude, the type of vegetable oil in which carotenoids are dispersed is important to achieve an enhanced bioavailable lutein. The correlation between the micellizable lutein and fatty acid composition of vegetable oils are discussed.

Item Type: Article
Uncontrolled Keywords: Fatty acids In vitro digestion Lutein Micellization Mixed micelles Vegetable oils
Subjects: 600 Technology > 08 Food technology > 19 Lipids-oils/fats
500 Natural Sciences and Mathematics > 04 Chemistry and Allied Sciences > 14 Carotenoid Chemistry
Divisions: Dept. of Biochemistry
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 04 Feb 2011 10:59
Last Modified: 28 Dec 2011 10:21
URI: http://ir.cftri.com/id/eprint/9891

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