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使用基于同步的X射线微计算机断层扫描来可视化粉水凝的微观结构In Situ

Yikai Ren¹, Jarvis A Stobbs², Dong-Jin Lee¹

¹Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5A8, Canada.

Biomacromolecules

|May 8, 2024

概括

同步龙X射线微计算机断层扫描 (μCT) 有效地可视化了粉水凝微结构. 这种非破坏性方法在研究生物聚合物凝方面比SEM具有优势.

科学领域:

食品科学食品科学食品科学
材料科学材料科学材料科学
生物技术是生物技术.

背景情况:

粉水凝在各种行业中至关重要.
了解它们的微观结构是控制属性的关键.
传统的成像方法有其局限性.

研究的目的:

使用同步龙X射线微计算机断层扫描 (μCT) 可视化粉水凝微结构.
为了将μCT与扫描电子显微镜 (SEM) 对水凝成像进行比较.
为了研究粉含量和温度对粉水凝结构的影响.

主要方法:

从性玉米粉 (WMS),豆粉 (PS) 和高糖玉米粉 (HMS) 制备粉水凝.
在95°C和140°C煮粉.
使用基于同步子的X射线微计算机断层扫描 (μCT) 和扫描电子显微镜 (SEM) 的微结构分析.

主要成果:

不同的粉类型和温度产生了不同的凝结果和微观结构.
在140°C煮熟的高氨糖玉米粉 (HMS) 形成了具有高强度的刚性凝.
μCT揭示了详细的三维微观结构,样本收缩最小,性能优于SEM.
水凝结构受到粉膨胀和分散的显著影响.

结论:

基于同步子的μCT是一种强大的,非破坏性的技术,用于可视化生物聚合物水凝微结构.
与SEM相比,μCT在样本准备和3D重建方面具有优势.
这种成像方法有助于理解基于粉的材料中的结构属性关系.

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