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融化与冰再结晶对多孔性粉制剂的影响:孔形成性质,颗粒形态,功能和多尺度结构
Chen Zhang1, Shi-Yi Wang2, Chu-Yun Wu2
1School of Food Science and Engineering, Yangzhou University, Huayang Xilu 196, Yangzhou, Jiangsu 225127, People's Republic of China; Postdoctoral Mobile Station of Agriculture, College of Agriculture, Yangzhou University, Wenhui Donglu 48, Yangzhou, Jiangsu 225009, People's Republic of China.
Food research international (Ottawa, Ont.)
|November 21, 2023
概括
临界融与冷解处理 (CMFT) 结合,有效地产生具有增强性质的多孔粉. 这种方法改善了表面积,热稳定性和水/油吸收,提供了一种稳定多孔粉结构的新方法.
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
- 生物化学 生物化学
背景情况:
- 原生粉在表面积和吸收特性方面存在局限性.
- 开发具有增强功能的多孔粉对于各种应用至关重要.
- 现有的多孔粉制备方法往往缺乏结构稳定性.
研究的目的:
- 为了研究使用临界化 (CM) 与冷解 (FT) 处理相结合的多孔粉的制备.
- 描述准备的多孔粉的结构和功能性质.
- 评估CM和FT对粉修饰的协同效应.
主要方法:
- 临界化 (CM) 与冷解 (FT) 在-20°C和-80°C的处理相结合.
- 使用测量特定表面积,孔隙体积和平均直径的技术,对多孔性粉进行表征.
- 分析热稳定性 (To,Tp,Tc) 和水/油吸收能力.
- 评估结构变化,包括相对晶度和双螺旋比例.
主要成果:
- 与FT结合的CM产生的多孔粉具有不同的结构 (槽/腔或孔/通道),取决于结速度.
- 与原生粉相比,特定表面积,毛孔体积和平均毛孔直径显著增加.
- 热稳定性和水/油吸收能力大大提高.
- 多孔粉呈现出更有序的双螺旋结构,结晶度增加.
结论:
- CMFT是一种有效的制备多孔粉的方法,具有显著改善的结构和功能特性.
- 融化和冰再结晶的协同效应增强了多孔粉结构的稳定性.
- 这种方法为开发先进的多孔粉材料提供了一个有前途的途径.
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