Research progress in the extraction, purification, structural features, biological activities, and structure-activity relationships from Prunella vulgaris polysaccharides.

Prunella vulgaris L., a globally recognized medicinal and edible plant, has been extensively used in China for over 2000 years, possessing the efficacy of clearing liver-fire, brightening the eyes, dispersing the knot, and reducing swelling. Phytochemical studies have shown that Prunella vulgaris contains various biologically active compounds, including flavonoids, triterpenes, polysaccharides, and phenolic acids.

Extraction methods, structural features and bioactivity diversity of polysaccharides from the genus Chrysanthemum: A review.

The genus Chrysanthemum has been widely used as both folk medicine and food in East Asia for thousands of years, serving as a significant source of nutritional and pharmacological value. According to the theory of traditional Chinese medicine, it clears heat and toxic materials and regulates liver function. Accumulating evidence has demonstrated that polysaccharides from the genus Chrysanthemum, especially Chrysanthemum morifolium, Chrysanthemum indicum, and Coreopsis tinctoria, are vital representative macromolecules with diverse biological activities, including antioxidant, immunomodulatory, anti-inflammatory, hypoglycemic, antitumor, and antiviral properties as well as the ability to regulate the gut microbiota.