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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2021.31.1.52

Preparation of Alginate Microspheres by Rotating Membrane Emulsification  

Min, Kyoung Won (Department of Engineering Chemistry, Chungbuk National University)
Youm, Kyung Ho (Department of Engineering Chemistry, Chungbuk National University)
Publication Information
Membrane Journal / v.31, no.1, 2021 , pp. 52-60 More about this Journal
Abstract
When preparing calcium alginate microspheres using rotating membrane emulsification that rotates SPG (Shirasu porous glass) tubular membrane in the continuous phase, the optimal conditions of rotating membrane emulsification process parameters for producing monodisperse microspheres were determined. We determined the effects of process parameters of rotating membrane emulsification (the rotating speed of membrane module, the transmembrane pressure, the ratio of dispersed phase to continuous phase, the alginate concentration, the emulsifier concentration, the stabilizer concentration, the crosslinking agent concentration, and the membrane pore size) on the mean size and size distribution of alginate microspheres. As a result, the size of the microspheres decreased as the rotating speed of membrane module, the emulsifier concentration, and the crosslinking agent concentration increased among the process parameters of rotating membrane emulsification. On the contrary, as the ratio of dispersed phase to continuous phase, the transmembrane pressure, and the alginate concentration increased, the size of the microspheres increased. In the rotating membrane emulsification using an SPG membrane with a pore size of 3.2 ㎛, it was possible to finally prepare monodisperse alginate microspheres with a particle size of 4.5 ㎛ through the control of process parameters.
Keywords
rotating membrane emulsification; SPG membrane; microspheres; calcium alginate;
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