Quercetin Plant Extract 98% HPLC Flavonoid Powder supplement

Quercetin Extract Powder (Standardized Plant Flavonoid by HPLC) Overview Quercetin is a naturally occurring flavonoid widely distributed in many plant species. It belongs to the flavonol subclass of polyphenolic compounds and is commonly found in botanical materials such as Sophora japonica flowers, onions, ginkgo leaves, and sea buckthorn. Because of its broad occurrence in edible plants and herbal materials, quercetin has become one of the most studied plant flavonoids in the context of nutritional and botanical ingredient development. In commercial ingredient production, quercetin extract is typically obtained through extraction and purification processes applied to plant raw materials rich in flavonoid compounds. Sophora japonica flower buds are often used as a primary industrial source due to their naturally high flavonoid content. The extracted compound is then purified and standardized to a defined concentration, commonly verified by high-performance liquid chromatography (HPLC…