开发和表征双功能弱强酸性离子交换纳米纤维膜的开发和表征,以便在批量模式下高效地吸附酶
Chien-Yi Lo1, Nguyen The Duc Hanh2, Penjit Srinophakun3
1Department of Chemical Engineering, Graduate School of Biochemical Engineering, Ming Chi University of Technology, New Taipei City 243303, Taiwan.
Food chemistry
|May 23, 2025
概括
新的离子交换膜 (AEA-COOH-AMS) 显示出高酶吸附和容易再生的能力. 这种可重复使用的平台为食品生物技术和生物产品回收中的蛋白质分离提供了潜力.
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.
- 化学工程是化学工程的重要组成部分.
背景情况:
- 开发高效的蛋白质分离材料对于食品生物技术至关重要.
- 离子交换膜提供了选择性吸附能力.
- 聚烯 (PAN) 纳米纤维为膜修饰提供了多功能支架.
研究的目的:
- 合成和描述用于蛋白质吸附的新型离子交换膜 (AEA-COOH-AMS).
- 评估溶酶结合的吸附能力,热力学和动力学.
- 评估已发育的膜的再生潜力.
主要方法:
- 通过碳氧化和硫化对聚烯二 (PAN) 纳米纤维膜进行修改,并使用聚乙烯二 (PET) 支.
- 结构,形态和吸附性能表征.
- 在不同温度和盐度条件下进行酶吸附-脱附实验.
主要成果:
- AEA-COOH-AMS膜表现出高的酶结合能力 (629.16 mg/g在318 K).
- 吸附过程是自发的和内热的,最好用Avrami运动模型来描述.
- 使用0.4mol/L NaCl实现了完整的溶酶脱吸,这表明再生效果很好.
结论:
- 该AEA-COOH-AMS纳米纤维膜系统是一个有前途的可重复使用平台,用于选择性蛋白质吸附.
- 该研究为应用这些膜在从复杂的食物矩阵中分离蛋白质奠定了基础.
- 潜在的应用包括食品生物技术和生物产品回收过程.
相关概念视频
Ion Exchange
565
Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
565
Detergent Purification of Membrane Proteins
5.1K
Detergents are used to purify the integral proteins of the membrane. The hydrophobic portion of the detergent can replace membrane phospholipids while solubilizing the membrane proteins. When detergent monomers reach a specific concentration in a solution called critical micelle concentration (CMC), they form micelles. Above CMC, the concentration of the detergent monomers remains in equilibrium with the micelle. The number of detergent monomers present in the CMC varies for each detergent, and...
5.1K


