来自Sargassum hornerieri的亚临界水处理纤维素的物理,化学和结构性质
Mikyung Kim1, Dongho Kang2, Ji Hun Park3
1Department of Food Science and Biotechnology, Ewha Womans University, Seodaemun-gu, Seoul, 03760, Republic of Korea.
International journal of biological macromolecules
|January 30, 2026
概括
亚临界水处理 (SWT) 产生了具有增强晶度和纳米纤维网络的亚临界水处理纤维素 (SWTC). 这种可持续材料由于其改进的性能,显示出对食品应用的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 生物技术是生物技术.
- 可持续化学 可持续化学
背景情况:
- 传统的纳米纤维素生产方法面临着局限性.
- 亚临界水处理 (SWT) 为纤维素修饰提供了一种新的方法.
- 开发可持续的纳米纤维素替代品对各种行业至关重要.
研究的目的:
- 开发使用亚临界水处理 (SWT) 的亚临界水处理纤维素 (SWTC).
- 在各种SWT条件下评估SWTC的结构,物理和化学特性.
- 评估SWTC作为食品相关应用的可持续材料的潜力.
主要方法:
- 亚临界水处理 (SWT) 应用于预处理的固体残留物.
- 使用X射线衍射 (XRD),富里埃变换红外光谱 (FTIR) 和热分析对SWTC的表征.
- 评价产量,纤维形态,结晶性和物理化学性质.
主要成果:
- 在更恶劣的条件下,SWTC展示了纠的纳米纤维网络,纤维直径减少.
- SWT显著提高了纤维素结晶度,达到69.43% (在180°C下20分钟),超过了原材料和微米级纤维素.
- FTIR分析表明,无形区域被移除,分子对齐得到改善.
- 最佳条件 (例如,60分钟的160°C) 产生了具有低表面导电性和PDI (<0.4) 的SWTC.
结论:
- 亚临界水处理在生产具有增强结构和物理化学性质的纳米纤维素方面是有效的.
- 与传统方法相比,SWTC显示出更高的结晶性和分子对齐性.
- SWTC的调节性质突显了其作为可持续和多功能材料的潜力,特别是在食品应用中.
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