化阿拉比诺葡萄糖基兰以调节它们的流动行为
Frank Sznaider1, Ana M Rojas2, Carlos A Stortz1
1Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, Consejo Nacional de Investigaciones Científicas y Técnicas, Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR/CONICET), Departamento de Química Orgánica, Ciudad Universitaria, C1428BGA Buenos Aires, Argentina.
Carbohydrate polymers
|April 26, 2024
概括
布雷 (arabinoglucuronoxylans) 的化改变了其流动特性,产生了一种类似于阿拉伯的产品. 这项研究优化了化反应,并描述了修改后的多糖.
科学领域:
- * 碳水化合物化学 碳水化合物化学
- * 聚合物科学 聚合物科学
- * 食品化学 食品化学
背景情况:
- *来自Cercidium praecox (Brea口香糖) 的阿拉比诺葡萄糖类是植物排泄物,具有潜在的应用.
- * 修改多糖体流动行为对于工业应用至关重要,其目的是获得与广泛使用的合物类似的特性,如阿拉伯.
- * 了解化学修饰反应是定制多糖功能的关键.
研究的目的:
- *通过化修改Brea (arabinoglucuronoxylans) 以达到与阿拉伯相比的流动行为.
- * 优化使用碳二化物化学 (EDC/NHS) 的化反应条件,以获得最大的产量和最小的副产品.
- * 用于描述化物产品及其质性质.
主要方法:
- *使用1-乙基-3-(3-二甲基亚胺) 碳二胺 (EDC) 和N-氧糖胺 (NHS) 的Brea的胺基反应.
- *响应表面方法 (RSM) 用于优化试剂胆量测量和分析反应因子.
- * 胺化程度 (DA) 和副产品形成的表征.
- *对原生和化布雷亚乳糖溶液的风湿学分析.
主要成果:
- *开发了优化的化反应模型,以预测化程度 (DA) 和副产品的形成.
- * 在聚糖的化过程中发现了一种由β-氨酸衍生的新型二次产物.
- *与原生口香糖 (115Pa·s) 相比,化布莱雅口香糖 (DA=52%) 呈现了伪塑性流动行为,并显著降低了牛顿粘度 (36.2Pa·s).
结论:
- * 化过程有效调节了Brea的风湿性质.
- * 化阿拉比诺葡萄糖氧酸的流动行为与阿拉伯的流动行为非常相似.
- *这项研究提出了一种可行的方法,用于从Brea中生产功能性合物,并作为阿拉伯替代品的潜在应用.
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