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聚醇对土豆蛋白铁复合物的功能性质,消化能力和铁的生物可用性的影响
Sisheng Li1, Minna Luo1, Zili Gao1
1Biopolymers and Colloids Laboratory, Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA.
Food chemistry
|June 1, 2025
概括
将特定的多醇添加到土豆蛋白铁复合体中,可以增强蛋白质的消化和铁的释放. 这项研究为改善植物性饮食中铁的生物可用性提供了洞察力,以对抗铁缺乏症.
科学领域:
- 营养科学 营养科学
- 食品化学 食品化学
- 生物化学 生化学
背景情况:
- 植物性饮食通常含有低生物可用性的铁,有助于铁缺乏症.
- 马蛋白铁复合体是铁的潜在来源,但它们的生物可用性需要提高.
- 聚是植物化合物,可以与蛋白质和矿物质相互作用.
研究的目的:
- 为了研究将酸,咖啡酸和奎尔酸添加到土豆蛋白铁复合物的效果.
- 确定这些多醇如何调节蛋白质消化能力和铁的生物可用性.
- 使用Caco-2细胞评估多保留和铁吸收.
主要方法:
- 形成了土豆蛋白铁复合体,并用不同比例的酸,咖啡酸或氨酸处理.
- 在实验室中,蛋白质消化在模拟的胃和小肠条件下进行了评估.
- 测量了来自复合体的铁释放量.
- 消化后的多保留量被量化.
- 使用Caco-2细胞测试来测量铁素产量,作为铁的吸收指标.
主要成果:
- 奎尔素显著增加了胃和小肠中的蛋白质消化.
- 酸和咖啡酸增强了蛋白质的消化,主要是在胃中.
- 奎尔和咖啡酸在大多数测试比例中促进了铁的释放.
- 酸需要更高的比率 (3:1) 才能显著释放铁.
- 聚烯的保留有所不同,咖啡酸的保留率更高 (21.5%在3:1).
- 卡科-2细胞测试表明,高酸 (3:1) 和中等氨酸 (1:1) 水平增强了费里丁的产生.
结论:
- 添加聚醇可以调节马蛋白的消化能力和铁的生物可用性.
- 特定的多和它们的比例影响蛋白质消化,铁释放和细胞铁吸收.
- 这些发现表明,在植物性食品中增强铁强化的潜在策略.
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