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首页> 外文期刊>ACS Sustainable Chemistry & Engineering >High-Speed Countercurrent Chromatography-Based Method for Simultaneous Recovery and Separation of Natural Products from Deep Eutectic Solvent Extracts
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High-Speed Countercurrent Chromatography-Based Method for Simultaneous Recovery and Separation of Natural Products from Deep Eutectic Solvent Extracts

机译：基于高速逆流色谱法，用于同时恢复和分离深度共晶溶剂提取物的天然产物

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摘要

The use of deep eutectic solvents (DESs) to extract natural products has attracted considerable attention in recent years. However, the recovery of extracted compounds and DES from DES extracts is still a barrier, which restricts the large-scale application of DESs. Here, we proposed a high-speed countercurrent chromatography (HSCCC)-based method to recover extracted compounds and DES. As a proof of concept, the chrysanthemum DES extract was selected to verify the method. We first prepared a series of DES -based solvent systems and screened them based on their physical and chemical properties. Only the system composed of choline chloride/L-malic acid, water, and ethyl acetate (1:1:1, v/v/v) was suitable. By using the solvent system for HSCCC separation, the target compounds and DES in the chrysanthemum DES extract were both successfully recovered with high recovery yields over 95%. Then, we investigated the reusability of the recovered DES and found that it could be repeatedly reused for three times without any performance deterioration. All these results indicated that the proposed method is feasible and efficient, which has great potential for application. Moreover, the method may also be used in other fields where the separation process is needed, such as organic synthesis, chemical separation, bioseparation, and biotransformation.
机译：近年来，使用深层共晶溶剂（DEST）提取天然产物引起了相当大的关注。然而，从DES提取物的提取化合物和DES的回收仍然是一个障碍，其限制了DES的大规模应用。在这里，我们提出了一种高速逆流色谱（HSCCC）的基础方法以回收提取的化合物和DES。作为概念的证据，选择菊花DES提取物以验证该方法。我们首先制备了一系列DES基于DES基溶剂系统，并根据其物理和化学性质筛选它们。只有由氯化胆碱/甲丙酸，水和乙酸乙酯（1：1：1，v / v）的系统合适。通过使用用于HSCCC分离的溶剂系统，菊花DES提取物中的靶化合物和DES成功回收率以超过95％的高回收率。然后，我们调查了回收的DES的可重用性，并发现它可以反复重复使用三次，而无需任何性能恶化。所有这些结果表明，所提出的方法是可行和有效的，其应用具有很大的潜力。此外，该方法也可以在需要分离过程的其他领域中使用，例如有机合成，化学分离，生物分离和生物转换。

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