由单价和双价离子度诱导的高酸盐群含量康雅克葡萄干和桑坦之间的协同结合的演变
Dongling Qiao1, Man Luo2, Yishen Li2
1Chongqing Key Laboratory of Speciality Food Co-Built by Sichuan and Chongqing, College of Food Science, Southwest University, Chongqing 400715, China; Glyn O. Phillips Hydrocolloid Research Centre at HBUT, School of Food and Biological Engineering, Hubei University of Technology, Wuhan 430068, China.
Food chemistry
|September 1, 2023
概括
盐离子对康雅克葡萄糖曼南 (KGM) 和桑坦协同作用的凝产生影响. NaCl和CaCl2改变KGM/山结合,影响凝的特性和结构,以改善设计.
科学领域:
- 食品科学与技术 食品科学与技术
- 材料科学 材料科学 材料科学
- 生物聚合物相互作用
背景情况:
- 在冷却过程中,康杰克葡萄甘 (KGM) 和桑坦通过A型和B型结合形成协同凝.
- 已知盐离子会影响水凝和生物聚合物相互作用的特性.
研究的目的:
- 为了研究盐离子 (NaCl和CaCl2) 对KGM和香之间的协同结合的影响.
- 要了解这些盐诱导的结合变化如何影响整体凝特性和结构.
主要方法:
- 对不同度的NaCl和CaCl2的凝形成和特性进行比较分析.
- 通过热分析和结构特征 (例如,聚合结构,丝状形成) 来评估结合类型 (A和B).
- 凝硬度的测量,以量化盐离子对凝强度的影响.
主要成果:
- NaCl和CaCl2 (在3-6毫米) 通过静电屏蔽消除了B型结合,同时通过中和碳酸基和减少山链排斥来增强A型结合.
- 增强的A型结合导致了外热峰温度的增加,更多的平行丝,更大的聚合结构 (> 1.0 nm) 和更大的凝硬度.
- 高度的CaCl2促进了复杂的Ca2+桥梁结构,阻碍了螺旋形状的形成,削弱了A型结合.
结论:
- 盐离子,特别是NaCl和CaCl2,在调节KGM和香之间的协同作用中发挥着至关重要的作用.
- 了解这些盐诱导的结合变化对于量身定制KGM/山凝特性至关重要.
- 这些发现为合理设计和制备具有所需特征的KGM / xanthan协同凝提供了基础.
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