氨/氨和不同结构的多醇之间的相互作用
Tongtong Yu1, Zhiying Wang1, Xuan Yang1
1College of Food Science and Nutritional Engineering, China Agricultural University, National Engineering Research Centre for Fruit and Vegetable Processing, Key Lab of Fruit and Vegetable Processing, Ministry of Agriculture and Rural Affairs, Beijing Key Laboratory for Food Nonthermal Processing, Beijing 100083, China.
像甲素和EGCG这样的多类强烈与粉结合,改变其结构和聚合. 这种由键和静电力驱动的相互作用为设计基于粉的输送系统提供了洞察力.
科学领域:
- 食品科学与技术 食品科学与技术
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
背景情况:
- 聚是植物衍生化合物,具有多样化的生物活性.
- 由粉和粉素组成的粉是食品和生物材料中的关键碳水化合物.
- 了解粉多相互作用对于食品加工和配送系统至关重要.
研究的目的:
- 系统地阐明四种多 (甲素,EGCG,C3G,酸) 和粉成分 (粉素,粉素) 之间的相互作用机制.
- 研究这些相互作用对粉结构,聚合和物理化学性质的影响.
- 通过综合实验和计算方法,提供对粉聚结合的原子学见解.
主要方法:
- 实验性表征包括LCM-拉曼光谱和FTIR分析.
- 分子动力学 (MD) 模拟以探测原子水平的结合机制.
- 结合能力的量化和粉结构变化的分析.
主要成果:
- 甲基素 (CC) 和基甲基酸盐 (EGCG) 显示出对粉素/粉素的结合能力最高.
- 聚醇诱导了粉链聚合,增加了颗粒大小,并减少了短距离顺序.
- 模拟MD显示多破坏螺旋结构和通过键和静电力交叉链粉链.
结论:
- 结合亲和力与多醇中基数量相关 (FA < CC < EGCG).
- 氨基-3-O-葡萄糖化物 (C3G) 主要通过静电力作为酸盐相互作用.
- 这项研究为粉-多相互作用提供了新的原子学见解,这对于设计先进的基于粉的输送系统非常有价值.
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