不同的粉脂肪酸复合物的结构特征及其对人类肠道微生物群的影响
Dan Li1, Xin Wang1, Jilite Wang2
1State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science and Technology (TUST), Tianjin, China.
Journal of food science
|July 8, 2023
概括
耐性粉5型 (RS5),是一种粉脂复合物,显示出改善了血糖控制. 莲花粉与劳里克酸 (LS12) 结合,显示出优异的发酵和有益的肠道健康效应.
科学领域:
- 食品科学 食品科学 食品科学
- 营养生物化学 营养生物化学
- 碳水化合物化学 碳水化合物化学
背景情况:
- 耐性粉5型 (RS5),是一种粉脂复合物,由于其消化能力较低,影响血糖和胰岛素水平,因此具有潜在的健康益处.
- 了解粉来源和脂肪酸链长度对RS5特性的影响对于优化其健康应用至关重要.
研究的目的:
- 研究晶体结构和脂肪酸链长度如何影响RS5的结构,体外消化能力和发酵.
- 为了确定最佳的粉脂组合,以提高RS5的功能.
主要方法:
- 用12-18C脂肪酸 (劳里克酸,米里斯蒂克酸,帕尔米特酸,脂酸) 复合破碎的粉 (玉米,大米,小麦,马,麻豆,莲花,金科).
- 使用各种分析技术,描述RS5的结构,体外可消化性和发酵能力.
- 评估复杂指数和短链脂肪酸生产.
主要成果:
- 在RS5复合物中观察到的V型结构,特别是在莲花和银杏粉中.
- 莲花和金刚果的脱枝粉形成了具有更高秩序,结晶性和更低消化能力的复合物.
- 莲花粉-酸复合物 (LS12) 显示出最高复合指数和优越的肠道菌群发酵,产生短链脂肪酸 (SCFA).
结论:
- 粉晶体结构和脂肪酸链长度显著影响RS5的特性.
- LS12表现出优异的发酵能力,通过产生SCFA和降低肠道pH,促进肠道健康.
- RS5,特别是LS12,有望改善代谢健康和肠道微生物群组成.
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