粉-多烯复合物的相互作用和物理化学特性:聚合物氨酸和玉米粉具有不同的粉/粉蛋白比率
Wuzhen Liu1, Jiahui Xu1, Xixiang Shuai1
1State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
International journal of biological macromolecules
|August 31, 2023
概括
聚合物氨酸 (PPC) 根据粉含量不同,对玉米粉的特性有不同的影响. PPC增强了性玉米粉 (WAM) 凝,并抑制了粉的逆向降解,主要是通过与烯素的键.
科学领域:
- 食品科学 食品科学 食品科学
- 生物化学 生物化学
- 聚合物科学 聚合物科学
背景情况:
- 玉米粉由粉和粉烯组成,根据其粉含量表现出不同的物理化学特性.
- 聚合物氨酸 (PPC) 是天然的多,在食品系统中具有潜在的应用.
- 了解PPC和粉之间的相互作用对于修改粉功能至关重要.
研究的目的:
- 为了研究聚合物氨酸 (PPC) 对不同粉含量玉米粉的物理化学特性的影响.
- 阐明PPC和粉成分 (粉素和粉素) 之间的相互作用机制.
主要方法:
- 使用的高氨糖玉米粉 (HAM) 和性玉米粉 (WAM),PPC度不同.
- 评估物理化学性质,包括粘性弹性,凝和逆向降解.
- 采用富里埃变换红外光谱 (FTIR),核磁共振 (NMR),X射线衍射 (XRD),结合和动态光散射 (DLS) 来研究相互作用机制.
主要成果:
- 低PPC含量 (1%) 降低了HAM粘性弹性,并抑制了氨糖重组,增加了流动性.
- 过度的PPC阻碍了PPC与粉糖的相互作用.
- 通过增加度,PPC增强了WAM凝能力.
- 在储存期间,PPC有效地抑制了粉再结晶,对WAM逆向降解的抑制比HAM更强.
- 有证据表明,氨酸比氨酸更容易与PPC相互作用.
结论:
- 粉和粉之间的相互作用主要是由键驱动的.
- 在粉的物理化学性质中观察到的差异主要归因于粉中的粉素与粉素的比率,而不是PPC-粉相互作用机制的显著变化.
- 聚烯显示出作为粉功能的修饰剂的潜力,特别是在性玉米粉应用中.
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