探索马尔托德克斯的平衡状态图,跨越多种德克斯特等价物
Zenaida Saavedra-Leos1, Anthony Carrizales-Loera1, Daniel Lardizábal-Gutiérrez2
1Multidisciplinary Academic Unit, Altiplano Region (COARA), Autonomous University of San Luis Potosi, Carretera a Cedral km 5+600, Matehuala 78700, Mexico.
Polymers
|July 27, 2024
概括
这项研究绘制了用于切丁微封装的马尔托德克斯特林状态的地图,确定了无形,半晶体和晶体区域. 最佳的储存是在无形区域,需要对稳定的微封装产品进行湿度控制.
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
- 物理化学 物理化学
背景情况:
- 马尔托德克斯特林被广泛用于微封装中的载体.
- 了解它们的物理状态对于产品的稳定性至关重要.
- 奎尔丁微封装需要仔细选择载体特性.
研究的目的:
- 为了确定马尔托德克斯特林与不同德克斯特等价物 (DE10和DE30) 的平衡状态图,用于瑞微封装.
- 确定影响微粒子稳定性的过渡区域.
- 为了建立微封装Quercetin的最佳储存条件.
主要方法:
- 用于结构分析的X射线衍射 (XRD).
- 扫描电子显微镜 (SEM) 用于形态学.
- 光学显微镜用于视觉特征.
- 差分扫描热量计 (DSC) 用于玻璃过渡温度 (Tg) 的确定.
- 水活动 (aw) 的测量.
主要成果:
- 确定了三个不同的区域:无形 (aw 0.07-0.437),半晶体 (aw 0.437-0.739) 和晶体 (aw > 0.739).
- 无形区域:球形,毛的微粒,Tg 44至-7°C.
- 半晶体区域:低强度的峰值,聚合的粒子,Tg < 2°C.
- 晶体区域:崩的结构,固体材料.
- 最佳条件:无形区域 (25°C,aw0.437,1.98g H2O/g粉). 它们的温度是:
- 在高温 (高达50°C) 时,湿度控制至关重要.
结论:
- 该研究提供了有关瑞微封装的马尔托德克斯 (DE 10 和 30) 的详细状态图.
- 在无形区域内实现了最佳的微封装稳定性.
- 了解这些阶段过渡是开发坚固,保质量稳定的微封装产品的关键.
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