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描述β-乳糖球蛋白在二氧化膜孔表面上的吸附及其对膜乳化过程的影响

Patrick Giefer¹, Sabrina Bäther², Nadine Kaufmes²

¹Leibniz Institute for Materials Engineering-IWT, Badgasteiner Straße 3, 28359 Bremen, Germany; University of Bremen, Particles and Process Engineering, Bibliothekstraße 1, 28359 Bremen, Germany.

Journal of colloid and interface science

|August 30, 2023

概括

了解β-乳球蛋白在二氧化膜上的吸附是液体处理的关键. 吸附机制受到表面处理和溶剂特性的影响,影响膜性能和乳液滴滴大小.

科学领域:

材料科学材料科学材料科学
合体和表面化学
生物物理化学生物物理化学

背景情况:

蛋白质吸附是液体加工中膜污染的主要原因.
在预混合膜乳化过程中,β-乳糖球蛋白 (BLG) 在陶二氧化表面的吸附的分子机制尚不清楚.

研究的目的:

为了阐明在二氧化表面上BLG吸附的分子机制.
研究BLG吸附对BLG稳定油在水乳液预混合膜乳化作用.
分析溶剂特性和表面处理如何影响BLG吸附和乳液特性.

主要方法:

研究了BLG形状,分子相互作用,层厚度和表面能量.
检查了溶剂特性 (BLG聚合状态) 和表面处理 (水利化) 的影响.
分析了由此产生的油在水乳液滴滴大小分布.

主要成果:

BLG吸附是由lysine残留物和silanol组之间的静电吸引驱动的,由疏水性相互作用稳定.
用强烈负电荷处理的表面导致明显高的BLG层厚度.
BLG吸附抵消了膜水利化,导致处理和未处理表面的可比表面能量.
乳液的液滴大小分布在经过处理和未经处理的表面上是相似的.

结论:

这项研究阐明了在二氧化膜上控制BLG吸附的分子相互作用.
BLG吸附显著影响膜表面特性,但其对乳液滴粒大小的影响在这种情况下是最小的.
研究结果为控制膜污染和优化乳液生产提供了洞察力.

关键词:

陶膜是一种陶膜.形状的形成形状的形成污染就是污染.分子相互作用分子相互作用.蛋白质吸附是一种蛋白质吸附.

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