Flavonoid

Molekulová štruktúra flavónovej kostry (2-fenyl-1,4-benzopyrón)

Flavonoidy sú skupina rastlinných druhotných metabolitov. Podľa nomenklatúry IUPAC [1] sa rozdeľujú na:

  • flavonoidy, odvodené od 2-fenylchromén-4-ónu (2-fenyl-1,4-benzopyrónu),
  • izoflavonoidy, odvodené od 3-fenylchromén-4-ónu (3-fenyl-1,4-benzopyrónu) a
  • neoflavonoidy, odvodené od 4-fenylkumarínu (4-fenyl-1,2-benzopyrónu).

Flavonoidy sú známe vďaka svojim antioxidačným účinkom. V masmédiách sa im niekedy hovorí aj bioflavonoidy — v tomto zmysle sú tieto názvy ekvivalentné, pretože všetky flavonoidy majú biologický pôvod. Často sa o nich hovorí v súvislosti s červeným vínom, v ktorom sú zastúpené vo veľkom množstve. Flavonoidy priaznivo pôsobia na kardio-vaskulárny systém, regenerujú a spevňujú cievy. Nachádzajú sa v jadierkach hrozna.

Referencie

  1. ↑ Flavonoids (isoflavonoids and neoflavonoids)., IUPAC Compendium of Chemical Terminology

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