聚烯-氨酸复合物的多层结构变化和机制由多烯结构调节
Xianling Wei1, Huan Xie2, Ziqing Hu3
1College of Light Industry and Food Science, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China; Guangdong Provincial Key Laboratory of Lingnan Specialty Food Science and Technology, Guangzhou, Guangdong 510225, China; Key Laboratory of Green Processing and Intelligent Manufacturing of Lingnan Specialty Food, Ministry of Agriculture, Guangzhou, Guangdong 510225, China; Academy of Contemporary Agricultural Engineering Innovations, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong 510225, China.
聚醇结构显著影响与粉素的相互作用. 更多的铁醇基增强了结合,导致粉糖聚合的增加,并改善了多-粉糖复合物的热稳定性.
科学领域:
- 食品科学 食品科学 食品科学
- 生物化学 生物化学
- 材料科学 材料科学 材料科学
背景情况:
- 聚是具有多种生物活动的植物化合物.
- 粉是粉的关键成分,影响食品的质地和消化能力.
- 了解多氨相互作用对于食品加工和健康应用至关重要.
研究的目的:
- 研究多的结构如何影响它们与粉素的相互作用.
- 为了阐明聚烯-氨酸结合的机制和强度.
- 为了确定多结构对由此产生的复杂性质的影响.
主要方法:
- 福里埃变换红外光谱学 (FTIR)
- 异热定位热量计 (ITC) 是一种热量计.
- 在X射线光电子光谱学 (XPS) 中.
- 分子动态模拟 (MD) 是一种分子动态模拟技术.
- 度,粒子大小分析分析.
- 扫描电子显微镜 (SEM) 的使用
- 热重力测量分析 (TGA)
主要成果:
- 聚醇-氨酸的相互作用是非共价的,自发的,和力驱动的.
- 相互作用强度和三步相互作用过程通过增加聚醇中的醇群来增强.
- 聚醇相互作用诱导粉素聚合,较高的聚合与更多的醇相对应.
- 酸/氨酸复合物表现出最高的热稳定性,这是由于酸的多重 pyrogallol 组.
结论:
- 聚醇中 pyrogallol 群的数量是它们与粉素相互作用的关键决定因素.
- 这些相互作用导致增强复杂的稳定性和结构性质的改变.
- 这些发现为设计具有量身定制特性的多氨复合物提供了洞察力.
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