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首页> 外文期刊>RSC Advances >Hexafluorophosphate salts with tropine-type cations in the extraction of alkaloids with the same nucleus from radix physochlainae
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Hexafluorophosphate salts with tropine-type cations in the extraction of alkaloids with the same nucleus from radix physochlainae

机译：六氟磷酸盐盐与流罗素型阳离子在植物植物中与相同的核萃取生物碱的溶液

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摘要

Ionic liquids (ILs) have been widely used in the field of extraction of natural bioactive compounds because of their advantages compared to traditional organic solvents. In this study, the new 'like dissolves like' mode was designed and seven types of tropine-based ionic liquids were used to extract tropane alkaloids from radix physochlainae, and then the relationship between their performance and structures together with the effects of main extraction conditions were explored. It was found that 0.05 mol L-1 [C(3)tr][PF6] aqueous solution had the ideal selectivity and high extraction efficiency of 95.1% at 75 degrees C when the extraction time was 55 min and the solid-liquid ratio was 1 : 35, which was superior to that of 85% ethanol-water and 0.1% hydrochloric acid-water. There was no decomposition and racemization of products occurring in the mixture solution when above extraction solvent was applied. In addition, the extraction behavior and mechanism using an ionic liquid aqueous solution was tentatively studied through thermodynamics experiments, near-infrared/infrared spectroscopy (NIR/IR), scanning electron microscopy (SEM), and thermogravimetric analysis (TG), and subsequent back-extraction could be efficiently used to further separate alkaloids and ILs. In the developed 'like dissolves like' mode, the extraction process of target alkaloids was found to be endothermic and spontaneous through the specific interaction between them and the solvent molecules with the same nucleus.
机译：与传统有机溶剂相比，离子液体（ILS）已被广泛用于自然生物活性化合物的提取领域。在这项研究中，设计了新的“如”溶解“模式，设计了七种类型的流罗素的离子液体，用于从植物植物植物植物中萃取晶醇生物碱，然后将其性能与结构之间的关系与主要提取条件的影响探索了。发现，当提取时间为55分钟时，0.05mol L-1 [C（3）Tr] [PF6]水溶液在75摄氏度下具有95.1％的高提取效率为95.1％，并且固体比率为95.1％。 1：35，其优于85％乙醇 - 水和0.1％盐酸水。当施加上述萃取溶剂时，在混合物溶液中没有产生的分解和外消旋化。此外，通过热力学实验，近红外/红外光谱（NIR / IR），扫描电子显微镜（SEM）和热重分析（TG），暂时研究使用离子液体水溶液的提取行为和机制，以及热重分析（TG），然后回到后面 - 萃取可以有效地用于进一步分离生物碱和ILS。在发达的“如”溶解如“模式的情况下，发现靶生物碱的提取过程通过它们与具有相同细胞核的特定相互作用和具有相同细胞核的溶剂分子的特定相互作用吸热和自发。

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  • 来源
    《RSC Advances》 |2018年第1期|共16页
  • 作者

    Dong Bing; Tang Jie; Yonannes Alula; Yao Shun;

  • 作者单位

    Sichuan Univ Sch Chem Engn Chengdu 610065 Sichuan Peoples R China;

    Sichuan Univ Sch Chem Engn Chengdu 610065 Sichuan Peoples R China;

    Sichuan Univ Sch Chem Engn Chengdu 610065 Sichuan Peoples R China;

    Sichuan Univ Sch Chem Engn Chengdu 610065 Sichuan Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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