An optimized protocol for anthraquinones isolation from Rhamnus frangula L

Area of Science:

• Natural Product Chemistry
• Phytochemistry
• Analytical Chemistry

Background:

• Anthraquinones derivatives (AQs) are valuable compounds with diverse applications.
• Traditional methods for AQ separation are often complex and costly.
• Rhamnus frangula L. is a known source of various anthraquinones.

Purpose of the Study:

• To develop a simple and inexpensive methodology for the extraction and isolation of anthraquinones derivatives (AQs).
• To obtain high yields of specific AQs: chrysophanol, physcione, and emodin from plant material.
• To offer an alternative to expensive commercial AQs and complex analytical methods.

Main Methods:

• Extraction of AQs from Rhamnus frangula L. plant material.
• Isolation of AQs using classical column chromatography.
• Optimization of binary mobile phase gradients (CHCl3 : AcOEt, 1-5%) for efficient separation.

Main Results:

• Successful extraction and isolation of chrysophanol, physcione, and emodin.
• Achieved excellent yields of the target anthraquinones derivatives.
• Demonstrated the simplicity and cost-effectiveness of the developed methodology.

Conclusions:

• The reported methodology provides a simple, inexpensive, and efficient way to isolate valuable anthraquinones derivatives.
• This approach offers a practical alternative to existing complex and costly separation techniques.
• The study highlights the potential of Rhamnus frangula L. as a source for these important compounds.