软化预处理和乳清含量对乳清和基于凝的水凝的影响
Pompilia Mioara Lopes1,2, Radu Fechete1, Felicia Minteuan1
1Physics and Chemistry Department, Technical University of Cluj-Napoca, 28 Memorandumului Street, 400114 Cluj-Napoca, Romania.
Gels (Basel, Switzerland)
|April 26, 2024
概括
这项研究探讨了制冷,冷和冷化如何影响乳清和凝水凝. 处理对孔隙结构,聚合物流动性和机械强度产生影响,为材料科学应用提供了见解.
科学领域:
- 材料科学 材料科学 材料科学
- 生物聚合物工程 生物聚合物工程
- 物理化学 物理化学
背景情况:
- 乳清和凝是基于蛋白质的天然聚合物,广泛用于水凝配方.
- 水凝在食品,医疗和制药行业有广泛的应用.
研究的目的:
- 为了研究特定的后加工步骤 (冷,冷,冷) 对乳清-凝-铜硫酸盐水凝的影响.
- 描述水凝形态,水状态和机械性质的变化.
主要方法:
- 扫描电子显微镜 (SEM) 用于形态分析.
- 质子核磁共振 (1H NMR) 放松计,以评估水的状态和聚合物链的移动性.
- 福利埃变换红外光谱 (FTIR) 分析化学结构变化.
- 机械测试用于评估材料强度.
主要成果:
- 冷却导致在冷化之前,水凝中的孔隙分布更加规律和密集.
- 核磁共振放松计表明,冷藏水凝中的聚合物链流动性更高.
- 在交叉连接和结后,FTIR光谱显示了蛋白质胺基带的变化.
- 机械测试显示,增强效应归因于聚合物含量增加和硫酸铜交联.
结论:
- 制备方法,包括冷化前的储存条件,显著影响乳清凝水凝的特性.
- 硫酸铜的交联和加工步骤增强了这些水凝的机械性能.
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