Research progress on the extraction technology and activity study of Epimedium polysaccharides

Area of Science:

• Pharmacology
• Traditional Chinese Medicine
• Natural Products Chemistry

Background:

• Epimedium, a long-used traditional Chinese medicine, contains water-soluble polysaccharides.
• These polysaccharides are key active components, primarily composed of mannose, rhamnose, galacturonic acid, glucose, and galactose.

Purpose of the Study:

• To summarize the research progress on Epimedium polysaccharides.
• To provide a reference for future research and development of Epimedium polysaccharides.

Main Methods:

• Extraction methods discussed include hot water, cellulase, ultrasonic, microwave-assisted, ultrasound compound enzyme, and ultra-high pressure extraction.
• Deproteinization techniques such as enzyme, macroporous resin, and Sevag methods are reviewed.
• Chemical modification approaches like phosphorylation, sulfation, selenization, and lipid encapsulation are also covered.

Main Results:

• Epimedium polysaccharides exhibit a wide range of pharmacological activities.
• These activities include immune and reproductive promotion, anti-osteoporosis, anti-tumor, antioxidant, anti-fatigue, and antiviral effects.
• Benefits to the nervous and hematopoietic systems are also noted.

Conclusions:

• Current research on Epimedium polysaccharides is extensive.
• Further investigation into their extraction, modification, and therapeutic applications is warranted.