#flavonoids

• Abelia engleriana — A shrub species belonging to the Abelia genus, remarkable for its characteristic funnel-shaped flowers and high biological adaptability. In experimental phytotherapy, pharmacognosy, and toxicology, the species is monitored for its chemical profile rich in flavonoids and terpenic compounds. These metabolites are clinically studied in laboratory models to evaluate analgesic and peripheral anti-inflammatory effects, as well as the capacity to reduce stress-induced painful somatizations at the neuro-muscular level.
• Anthocyanin — A water-soluble plant pigment belonging to the flavonoid class, present in the cellular vacuoles of many plants, flowers, and fruits (such as blueberries, blackberries, grapes, or red cabbage), responsible for coloring them in intense shades of red, purple, or blue. These compounds alter their color based on the environmental pH and play a major physiological role as powerful antioxidants, protecting plant tissues from ultraviolet radiation and oxidative stress.
• Anthochlor — A water-soluble plant pigment belonging to the flavonoid class (such as chalcones and aurones), found dissolved in the cell vacuoles of certain flowers (such as primroses or dahlias), responsible for coloring them in bright yellow or ivory shades. Unlike carotenoids, which are insoluble plastid pigments, anthochlor turns rapidly to reddish-red in the presence of ammonia or alkaline vapors.
• Anthoxanthin — A water-soluble plant pigment belonging to the flavonoid class, possessing a white, yellowish, or cream color, present in the cellular vacuoles of many plants, flowers, and fruits (such as cauliflower, onions, or white petals). This structural organic compound modifies its spectral hue depending on the acidity of the medium, becoming intense yellow in the presence of alkaline substances, and plays an essential role in protecting plant tissues against ultraviolet radiation and in cellular oxidation processes.
• Apocynum venetum — A species of perennial herbaceous plant in the family Apocynaceae, native to temperate regions of Eurasia, commonly known as Venetian dogbane or luobuma. It is recognized in traditional Chinese medicine and phytotherapy due to its leaves rich in flavonoids and bioactive compounds used to regulate blood pressure and reduce anxiety, while also featuring stalks that provide strong industrial textile fibers.