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Mechanisms of absorption of vitamin D-3 delivered in protein nanoparticles in the absence and presence of fat

机译:在蛋白质纳米粒子中递送维生素D-3的吸收机制,在没有脂肪和存在的情况下

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摘要

Novel protein-based nanovehicles offer alternatives to fat for delivery of lipophilic bioactives (nutraceuticals and drugs), yet they raise important questions regarding the bioavailability and absorption mechanism of the bioactive without fat. To provide answers, we chose vitamin D-3 (VD3) as a model lipophilic-nutraceutical, re-assembled casein-micelles (rCM) as model protein-based nanovehicles, and non-fat yoghurt as a model food. We prepared three yoghurt formulations: 3% fat with VD3 dissolved in milk-fat, non-fat and 3% fat, both latter enriched with VD3 within rCM. Following in vitro digestion, VD3 retention and bioaccessibility were high (similar to 90% and similar to 70%, respectively) in all formulations. VD3 uptake by Caco-2 cells was three-fold higher (p < 0.005) in the non-fat yoghurt enriched with VD3 in rCM compared with enriched fat-containing yoghurts. SR-BI, CD36 and NPC1L1 transporters were involved in VD3 absorption irrespective of the composition. Thus, our findings demonstrate that protein nanovehicles may improve VD3 bioavailability, without altering its absorption mechanism compared to that from fat.
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著录项

  • 来源
    《Food & Function》 |2021年第11期|共12页
  • 作者单位

    Technion Israel Inst Technol Dept Biotechnol &

    Food Engn IL-3200003 Haifa Israel;

    Aix Marseille Univ INRAE INSERM C2VN Marseille France;

    Technion Israel Inst Technol Dept Biotechnol &

    Food Engn IL-3200003 Haifa Israel;

    Aix Marseille Univ INRAE INSERM C2VN Marseille France;

    Technion Israel Inst Technol Dept Biotechnol &

    Food Engn IL-3200003 Haifa Israel;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 食品工业;
  • 关键词

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