通过浸泡乙醇水溶液来改变粉凝的机械强度和网络结构
Xiaoyang He1, Zihong Wang2, Daiyong Sun2
1College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong Province 266109, China; School of Medical, Molecular & Forensic Sciences, College of Environmental & Life Sciences, Murdoch University, Murdoch 6150, Western Australia, Australia.
International journal of biological macromolecules
|June 27, 2025
概括
在30%的乙醇中浸泡土豆粉凝10分钟显著提高了它们的机械性能,增加了拉伸应变. 这种简单的方法在食品和材料科学中为高性能粉水凝提供了潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 食品科学 食品科学 食品科学
- 聚合物化学 聚合物化学
背景情况:
- 粉凝被广泛使用,但通常需要修改以提高机械性能.
- 了解粉和溶剂之间的相互作用对于材料设计至关重要.
研究的目的:
- 调查乙醇度和浸泡时间对土豆粉凝特性的影响.
- 探索一种用于提高粉水凝机械性能的新方法.
主要方法:
- 马粉凝被浸泡在不同度 (低到高) 的乙醇溶液中.
- 浸泡时间变化以观察时间依赖的效应.
- 分析了拉伸力,孔径大小,溶剂含量,水分分布和质性质.
- 使用相关分析技术检查了晶体结构.
主要成果:
- 在30%的乙醇中短期浸泡 (10分钟) 显著增加了拉伸应变 (超过70%) 和孔隙大小.
- 较高的乙醇度会导致脱水和塑化,而较低的度会导致胀.
- 乙醇浸泡改变了溶剂含量,水分发和质行为.
- 对晶体结构的最小影响表明通过分子重新排列而不是逆行而发生修饰.
结论:
- 浸泡乙醇是一种有效的新方法,可以提高粉凝的机械性能.
- 该过程通过分子重新排列来修改凝结构,独立于逆行.
- 这种技术显示出开发用于食品和生物材料应用的先进粉水凝的前景.
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