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Comparison of Different High-Speed Countercurrent Chromatography Injection Modes for the Separation of Glabridin
Sheng-Bing Wang1,2, Kun Yang1,2, Xing-Cui Wang2
1College of Science, Gansu Agricultural University, Lanzhou, China.
Journal of Separation Science
|December 3, 2024
Summary
Continuous injection mode in countercurrent chromatography significantly improves separation efficiency and reduces solvent consumption for isolating glabridin from Glycyrrhiza glabra. This method is highly effective for natural product purification.
Area of Science:
- Natural Product Chemistry
- Chromatographic Separation Science
Background:
- Glycyrrhiza glabra (licorice) is a valuable source of bioactive compounds.
- Glabridin, a key isoflavonoid from licorice, possesses significant pharmacological properties.
- Efficient isolation and purification of glabridin are crucial for its applications.
Purpose of the Study:
- To compare different injection modes of countercurrent chromatography for isolating glabridin.
- To determine the most effective method for glabridin purification from Glycyrrhiza glabra.
- To assess the impact of injection modes on separation efficiency, time, and solvent consumption.
Main Methods:
- Utilized countercurrent chromatography (CCC) with single, overlapping, and continuous injection modes.
- Employed a two-phase solvent system: n-hexane/ethyl acetate/methanol/water (5:4:5:4, v/v).
- Compared separation efficiency, time, solvent consumption, yield, purity, and recovery rate across injection modes.
Main Results:
- Continuous injection mode showed significantly higher separation efficiency compared to single injection.
- Continuous injection reduced total separation time to 53.97% and solvent consumption to 52.49% of the single injection mode.
- Overlapping injection also improved efficiency, reducing time to 89.68% and solvent consumption to 74.88% of single injection.
- Yield, purity, and recovery rates were comparable across all tested injection modes.
Conclusions:
- High-speed countercurrent chromatography (HSCCC) in continuous injection mode is the most effective method for glabridin isolation.
- Continuous injection offers superior efficiency and resource economy for natural product purification.
- This optimized CCC method holds potential for purifying other valuable natural products.
Keywords:
Glycyrrhiza glabracontinuous injectionglabridinhigh‐speed countercurrent chromatographyoverlapping injectionMore Related Videos
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