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深和有机溶剂对德克斯的回收,分子量和功能性质的影响:使用德克斯薄膜的应用
Sameeha Syed Abdul Rahman1, Saroja Pasupathi1, Sugumaran Karuppiah2
1Bioprocess Engineering Laboratory, School of Chemical and Biotechnology, SASTRA Deemed to be University, India.
International journal of biological macromolecules
|December 29, 2024
概括
这项研究表明,有机溶剂和深度环氧溶剂如何影响微生物的德克斯特性. 使用有机溶剂的优化条件最大限度地提高了德克斯的回收,并为各种应用提供了多样化的功能性质.
科学领域:
- 生物技术是生物技术.
- 聚合物科学 聚合物科学
- 材料科学 材料科学 材料科学
背景情况:
- 微生物德克斯是一种多糖,具有多样化的应用.
- 溶剂系统可以显著影响多糖的回收和特性.
- 了解这些影响对于优化德克斯利用至关重要.
研究的目的:
- 为了研究有机溶剂和深溶解溶剂 (DES) 对微生物德克斯回收产量的影响.
- 分析不同溶剂对德克斯抗氧化活性,多分散指数和功能性质的影响.
- 为了确定使用有机溶剂恢复德克斯的最佳条件.
主要方法:
- 使用各种有机溶剂 (乙醇,异醇,乙) 和DES.
- 优化的回收条件涉及1:4的超和有机溶剂比率,0°C和16小时.
- 分析了德克斯的特性,包括分支,分子量,持水能力,可溶性,抗氧化活性,脂肪结合能力和乳化活性.
主要成果:
- 在优化的有机溶剂条件下,获得了最大的德克斯回收.
- 德克斯的结构在溶剂中是相似的,但分支有所不同,DES沉的德克斯显示出更高的α-(1,3) 联系.
- 溶剂的选择显著影响了分子质量和功能性质,这导致了每个回收的德克斯的特定应用.
结论:
- 乙醇回收的德克斯在农业应用中具有很高的水容量.
- 乙沉的德克斯具有高溶解性和抗氧化活性,适用于食品添加剂和伤口包裹.
- 由于其高分子量,DES回收的德克斯作为乳化剂是有效的,而异醇回收的德克斯可以用于废水整治.
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