Chemical structure: Lemon flavonoids belong to flavonoid compounds and have a basic skeleton structure of C6-C3-C6. that is, they are composed of two benzene rings (A ring and B ring) and an oxygen-containing heterocyclic ring (C ring). The main components of lemon flavonoids include hesperidin, naringin and eriocitrin. These compounds may present different chemical forms in structure due to modifications such as hydroxylation and glycosylation.
Source: Lemon flavonoids are mainly extracted from the fruit or peel of the Rutaceae plant lemon (Citrus Limon (L.) Burm.). The flavonoids in lemon are mainly flavanones, accounting for about 90%, of which hesperidin is the main component. The extraction parts include lemon fruit, peel or lemon residue, and the extraction methods usually use ethanol-ammonium sulfate two-phase system, vacuum filtration and other technologies. As a plant secondary metabolite, the content of lemon flavonoids is affected by factors such as lemon variety, part, processing technology and environment.