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首页> 外文期刊>RSC Advances >Natural deep eutectic solvents as new green solvents to extract anthraquinones from Rheum palmatumL.
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Natural deep eutectic solvents as new green solvents to extract anthraquinones from Rheum palmatumL.

机译：天然深层共晶溶剂作为新的绿色溶剂，以从Rheum Palmatuml提取蒽醌。

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Natural deep eutectic solvents (NADESs) are efficient in extracting natural products. However, traditional organic solvents are toxic in the extraction of anthraquinones from Rheum palmatum L. To solve this problem, we applied natural deep eutectic solvent ultrasound-assisted extraction in this study for the extraction of total anthraquinones from R. palmatum L. Principal component analysis revealed that the selected NADES which consisted of lactic acid, glucose and water (LGH), was highly efficient in extracting anthraquinones from R. palmatum L. The ratio of lactic acid/glucose and the addition of water in LGH were investigated via a single-factor experiment. With a lactic acid/glucose ratio of 5:1 (mol/mol), and 10% of water (v/v), LGH had a high extraction yield to anthraquinones. Optimized by response surface methodology (RSM), the optimized extraction conditions of extraction time, extraction temperature and solvent-to-solid ratio of 1.5 h, 82 degrees C and 26 mL g(-1), respectively. Under optimum conditions, the extraction yields of aloe-emodin, rhein, emodin, chrysophanol, physcion and total anthraquinones were 2.60 +/- 0.01, 5.78 +/- 0.02, 2.21 +/- 0.02, 5.87 +/- 0.02, 8.81 +/- 0.01 and 25.27 +/- 0.07 mg g(-1), respectively. The enrichment and separation of five anthraquinones in LGH extraction solution were efficiently achieved using DM130 macroporous resin, with purities of 90.98%, 96.67%, 92.37%, 95.80% and 91.61% as indicated by HPLC, and recovery yields of 84.08%, 79.51%, 84.96%, 81.83% and 78.35%, respectively. LGH was environmentally friendly and highly efficient in extracting anthraquinones from R. palmatum L., and NADESs showed potential for the extraction of effective components from natural products.
机译：天然深共晶溶剂（NADESs）是提取天然产物有效。然而，传统的有机溶剂是在从大黄蒽醌类的提取毒性为了解决这个问题，我们应用自然深共晶溶剂超声辅助提取在该研究中对于总蒽醌自R. L.鸡爪主成分分析的提取显示，其中包括乳酸，葡萄糖和水（LGH）的所选择的纳代，是高效的从R. L.鸡爪蒽醌提取乳酸/葡萄糖的和的比率在LGH加入水经由单进行了调查因素实验。为5的乳酸/葡萄糖比为2:1（摩尔/摩尔），和10％的水（V / V），LGH具有高提取率至蒽醌。响应面法（RSM），的提取时间，提取温度和1.5小时，82℃，分别为26毫升克（-1），溶剂与固体之比的优化的提取条件进行了优化。在最佳条件下，芦荟大黄素的提取产率，大黄酸，大黄素，大黄酚，大黄素甲醚和总蒽醌为2.60 +/- 0.01，5.78±0.02，2.21±0.02，5.87±0.02，8.81 + / - 分别为0.01和25.27±0.07毫克克（-1）。使用DM130大孔树脂被有效地实现富集和在LGH提取溶液5个蒽醌分离，具有90.98％，96.67％，92.37％，95.80％和91.61％的纯度通过HPLC所指示的，和84.08％回收率，79.51％ ，84.96％，81.83分别％和78.35％。 LGH是环保，高效的从大黄中提取属蒽醌和NADESs表现出对天然产物有效成分的提取潜力。

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  • 来源
    《RSC Advances》 |2018年第27期|共9页
  • 作者

    Wu Y. C.; Wu P.; Li Y. B.; Liu T. C.; Zhang L.; Zhou Y. H.;

  • 作者单位

    Sichuan Agr Univ Coll Sci Yaan 625014 Sichuan Peoples R China;

    Sichuan Agr Univ Coll Sci Yaan 625014 Sichuan Peoples R China;

    Sichuan Agr Univ Coll Sci Yaan 625014 Sichuan Peoples R China;

    Sichuan Agr Univ Coll Sci Yaan 625014 Sichuan Peoples R China;

    Sichuan Agr Univ Coll Sci Yaan 625014 Sichuan Peoples R China;

    Sichuan Agr Univ Triticeae Res Inst Chengdu 611130 Sichuan Peoples R China;

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