超声波和热效应对粉-酸复合物的制备和性能
Yushi Wang1, Mengjiao Xing1, Lijia Duan1
1Zhejiang Provincial Key Lab for Biological and Chemical Processing Technologies of Farm Product, School of Biological and Chemical Engineering, Zhejiang University of Science and Technology, Hangzhou, Zhejiang 310023, China.
International journal of biological macromolecules
|April 10, 2025
概括
使用热或超声波制备粉-酸复合物有效地结合酸 (CA),增强粉结构并阻碍酶分解. 超声波处理对粉颗粒比热方法要温和.
科学领域:
- 食品科学 食品科学 食品科学
- 生物化学 生化学
- 材料科学 材料科学 材料科学
背景情况:
- 酸 (CA) 是一种普遍存在的化合物,具有各种健康益处.
- 粉是一种常见的多糖,可以与其他分子形成复合体,以修改其特性.
- 了解CA和粉之间的相互作用对于开发新型食品成分和功能材料至关重要.
研究的目的:
- 为了准备和表征酸 (CA) 的复合物与来自不同来源的粉.
- 研究热处理和超声波对粉结构和CA结合的影响.
- 评估这些复杂物对粉酶降解的影响.
主要方法:
- 用热处理 (70°C,20分钟) 和超声波 (450W,20kHz,25°C,20分钟) 制备了粉-CA复合物.
- 鉴定包括分析粉结晶性,双螺旋结构和颗粒完整性的变化.
- 评估了酶降解和快消化粉 (RDS) 含量.
主要成果:
- 热处理和超声波都降低了粉的结晶性和双螺旋结构,热处理的效果更为明显.
- 超声波治疗比较温和,对粉颗粒结构的破坏较小.
- 这两种方法都促进了CA结合,导致粉结晶度增加和结构更加有序,这阻碍了酶降解.
- 粉-CA复合物中RDS含量下降,特别是在土豆粉-CA (PS-CA) 和玉米粉-CA (CS-CA) 复合物中.
结论:
- 热和超声处理对于创建具有结构修改的粉-CA复合物是有效的.
- 这些复合物由于增强的结构秩序而表现出较低的酶降解性.
- 处理方法的选择会影响结构修改和CA结合的程度,为应用提供可调节的特性.
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