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用不同的技术控制粉末形式的 levan 的颗粒大小

Stefania Mottola¹, Gianluca Viscusi¹, Álvaro González-Garcinuño²

¹Department of Industrial Engineering, University of Salerno, Via Giovanni Paolo II, 132, 84084 Fisciano, Salerno, Italy.

International journal of biological macromolecules

|September 19, 2024

概括

制造粉状叶黄素 (果糖多糖) 具有可控颗粒大小是具有挑战性的. 超临界抗溶剂 (SAS) 沉产生了微小化的球形颗粒,而电喷则产生了更大,更长的颗粒.

科学领域:

生物聚合物是一种生物聚合物.
材料科学材料科学材料科学
化学工程是化学工程的重要组成部分.

背景情况:

莱万是一种果糖多糖,具有多种应用,但很难以受控颗粒大小的粉末形式获得.
高效生产莱文粉对于其工业利用至关重要.

研究的目的:

调查和比较两种技术,电喷和超临界抗溶剂 (SAS) 沉,用于加工酶制获得的 levan.
确定生产具有狭窄颗粒大小分布的Levon粉的最佳条件.

主要方法:

莱万是使用电喷和超临界抗溶剂 (SAS) 沉来加工的.
使用-罗宾逊状态方程,从理论上确定SAS的混合物临界点.
分析了溶液属性 (rheology,可溶性,导电性) 以优化电喷.

主要成果:

SAS 沉成功将Levon微化成具有合适颗粒大小分布的球形颗粒 (0.300.50 μm).
电子喷射导致更大,更长的Levon颗粒 (0.60μm).
一种水与乙醇混合物 (50 mg·cm−3 levan) 由于有利的风学和导电性质,被确定为电喷剂的最佳物质.

结论:

通过选择合适的加工技术,可以有效调整粉末Levon的颗粒大小分布.
SAS沉提供了一种可行的方法,用于生产微化levon粉.
电喷参数,特别是溶剂的选择和度,显著影响粒子形态.

关键词:

电气喷雾是一种电子喷雾.莱万 (Levan) 是一个古老的城市.粒子形成的过程超临界反溶剂是一种超临界的反溶剂.

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