کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5133656 1492063 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Lipid digestion, micelle formation and carotenoid bioaccessibility kinetics: Influence of emulsion droplet size
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Lipid digestion, micelle formation and carotenoid bioaccessibility kinetics: Influence of emulsion droplet size
چکیده انگلیسی


- Lipid digestion kinetics determined micelle formation rate.
- Micelle formation and composition determined the carotenoid micellarization.
- Emulsions with small droplet size enhanced carotenoid bioaccessibility.

Carotenoid-enriched oil-in-water emulsions with different droplet sizes (small: d43 0.72 μm; medium: d43 1.9 μm; large: d43 15.1 μm) were subjected to simulated gastrointestinal conditions. The kinetics of lipolysis, micelle formation and carotenoid bioaccessibility were monitored during the intestinal phase. The rates of all three processes increased with decreasing droplet size. The large droplet size emulsion contained undigested oil at the end of digestion, whereas an almost complete hydrolysis was observed for the other two emulsions. The sub-micron emulsion presented a higher conversion of MAGs to FFAs during digestion, which led to a higher concentration of FFAs in the mixed micelles. The incorporation of carotenoids into mixed micelles occurred faster and reached a higher final value for the small droplet size emulsion, leading to final carotenoids bioaccessibility values of around 70%. This work provides valuable information for developing in silico models to simulate the lipid digestibility and carotenoid bioaccessibility.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 229, 15 August 2017, Pages 653-662
نویسندگان
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