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tocotrienol
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tocotrienol

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Also known as tocotrienols

350px|right|thumb|class=skin-invert-image|General chemical structure of tocotrienols. alpha(α)-Tocotrienol: R1 = Me, R2 = Me, R3 = Me; beta(β)-Tocotrienol: R1 = Me, R2 = H, R3= Me; gamma(γ)-Tocotrienol: R1 = H, R2 = Me, R3= Me; delta(δ)-Tocotrienol: R1 = H, R2 = H, R3= Me

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13 sections
Contents
  • Medical applications
  • Brain
  • Disease biomarkers
  • History
  • Etymology
  • Comparison to tocopherols
  • Metabolism and bioavailability
  • Absorption and distribution
  • Bioavailability factors
  • Metabolism and excretion
  • Sources
  • References
  • External links

350px|right|thumb|class=skin-invert-image|General chemical structure of tocotrienols. alpha(α)-Tocotrienol: R1 = Me, R2 = Me, R3 = Me; beta(β)-Tocotrienol: R1 = Me, R2 = H, R3= Me; gamma(γ)-Tocotrienol: R1 = H, R2 = Me, R3= Me; delta(δ)-Tocotrienol: R1 = H, R2 = H, R3= Me

Tocotrienols are plant-derived natural products belonging to the vitamin E family of diterpenoids. They exist as four isomers (alpha, beta, gamma, delta), each differing in the number and position of methyl groups on their chromanol ring. Tocotrienols are distinguished from the closely related tocopherols by their side chains: tocotrienols have three unsaturated isoprenoid double bonds, whereas tocopherols have a fully saturated side chain.

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