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(flavonoids) , ,       (polyphenol)           (phytonutrient).  5,000  flavonoids             (Holden et al., 2005). Flavonoids    A B  heterocyclic C 3-       , heterocyclic C     (anthocyanidins), (flavan3-ols), (flavanones), (flavones),  (flavonols) (Liu, 2004). (isoflavones)  B 3  2     (proantocyanidins) (flavan-3-ols)  , flavonoid   Figure 1 (Song et al., 2012) .  biflavonoid  2    (amentoflavone),  (agathisflavone), (cupressflavone),  (hinokiflavone) , flavonoid 2     ,   ,   (gymnosperm) (Okigawa et al ., 1971). Amentoflavone   (Sakthivel & Guruvayoorappan, 2013; Figure 2) .             . H2O2 (hydrogen peroxide) ROS     ,      O2 (singlet oxygen) OH (hydroxyl radical)      H2O2         .  H2O2          ,      ,      R E S E A R C H A R T I C L E Open Access

Antioxidant and Antiwrinkle Effects of Amentoflavone for Cosmetic Materials Development