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首页> 外文期刊>Separation and Purification Technology >Enhanced separation of bioactive triterpenic acids with a triacontylsilyl silica gel adsorbent: From impulse and breakthrough experiments to the design of a simulated moving bed unit
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Enhanced separation of bioactive triterpenic acids with a triacontylsilyl silica gel adsorbent: From impulse and breakthrough experiments to the design of a simulated moving bed unit

机译：将生物活性三萜酸的分离与三孔晶体硅胶吸附剂分离：从脉冲和突破实验到模拟移动床单元的设计

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A simulated moving bed (SMB) unit was designed to separate oleanolic and ursolic acids, two naturally occurring triterpenoids with structural isomerism, with remarkable nutraceutical and pharmacological properties. A triacontylsilyl silica gel adsorbent (stationary phase of an Acclaim C30 column) was considered and impulse tests with different solvents were performed to select a mobile phase, from which methanol/water 95/5 (%, v/v) emerged as the most suitable. Equilibrium and global mass transport coefficients were then determined through breakthrough experiments using pure compound solutions and the C30 column. Afterwards, these parameters were applied to the simulation of two model binary mixture separations, whose breakthrough curves were also experimentally measured.
机译：模拟的移动床（SMB）单元设计成分离烯酚和熊糖酸，两个天然存在的三萜类化合物，具有结构异构性，具有显着的营养性和药理学性质。 考虑了三孔晶硅烷基硅胶吸附剂（适应C30柱的固定相），并进行了不同溶剂的脉冲试验，以选择流动相，从中甲醇/水95/5（％，v / v）作为最合适的 。 然后通过使用纯化合物溶液和C30塔通过突破性实验确定平衡和全球传输系数。 然后，将这些参数应用于两种模型二元混合物分离的模拟，其突破性曲线也在实验测量。

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