Polysaccharides from Lonicera japonica Thunb.: Extraction, purification, structural features and biological activities—A review

Lonicera japonica Thunb.,commonly referred to as Caprifolium japonicum (Thunb.) Dum. Cours.,is a perennial herb classified under the caprifoliaceae family. It is utilized worldwide as a medicinal plant and also serves as food source and an ornamental plant. Lonicera japonica Thunb. Polysaccharides (LJP) constitute one of its primary components, demonstrating a wide range of biological activities including anti-inflammatory, antioxidant, immunomodulatory, anti-Alzheimer's, anti-diabetic, and anti-cancer effects. This paper reviews and summarizes recent research advancements on the extraction, purification, structural characteristics, and biological activities of LJP, offering a valuable foundation and up-to-date insights for the continued development and application of LJP in pharmaceutical and functional food sectors.