玛辐射对牙龙脱聚合和性质变化的影响
Boontiwa Ninchan1,2, Parimitta Chauywongyart1, Teerawat Utapong3
1Department of Biotechnology, Faculty of Agro-Industry, Kasetsart University, Bangkok 10900, Thailand.
International journal of biomaterials
|December 9, 2024
概括
玛辐射有效地通过增加单糖和降解来去聚合糖 (GT),一种异多糖. 高剂量导致显著的结构和物理化学性质变化,包括粘度降低和颜色变化.
科学领域:
- 食品科学 食品科学 食品科学
- 聚合物化学 聚合物化学
- 辐射化学 辐射化学
背景情况:
- 牙龙 (GT) 是一种有价值的异多多糖,用于食品和制药.
- 脱聚合是修改多糖特性的一个关键过程.
- 像辐射这样的高能非热过程为受控脱聚合提供了潜在的潜力.
研究的目的:
- 为了研究各种玛辐射剂量对牙龙的结构和物理化学性质的影响.
- 了解玛辐射和GT降解之间的剂量依赖关系.
主要方法:
- 牙龙的样本被暴露在一系列的玛辐射剂量 (2.5到2000kGy) 中.
- 使用福里埃变换红外光谱法 (FTIR) 分析结构变化.
- 评估了包括单糖组成,降解百分比,粘度和颜色在内的物理化学性质.
主要成果:
- 玛辐射诱导GT的脱聚合,由单糖含量增加 (L-阿拉比诺斯,D-银糖,D-葡萄糖,D-西洛斯,L-糖,L-拉姆诺斯) 和较高的降解百分比证明.
- FTIR分析揭示了结构修改,包括增加的自由O-H和C-O结合以及辐射样本中碳酸基 (COOH) 的存在.
- 物理化学变化包括粘度下降和明显的颜色变化,这两种变化都与增加的玛辐射剂量直接相关.
结论:
- 玛辐射是一种有效的方法,用于全面降解牙.
- GT降解和相关性质变化的程度与应用的玛辐射剂量成正比.
- 被辐射的GT表现出改变的结构和物理化学特征,为各种行业的修改应用提供了潜力.
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