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Encyclopedia > Flavonoids

Flavonoids are a group of chemical compounds naturally found in certain fruits, vegetables, teas, wines, nuts, seeds, and roots. Although not considered vitamins, flavonoids have a number of nutritional functions have been described as biological response modifiers; most act as antioxidants, and some have anti-inflammatory properties. Flavonoids have been shown to prevent or slow the development of some cancers.


Cocoa, particularly dark chocolate, is loaded with the flavonoid Epicatechin and has been found to have nearly twice the antioxidants of red wine and up to three times those found in green tea. The Epicatechin improves blood flow and thus good for cardiac health.


Flavonoids are usually subdivided into 5 subgroups:

  • Flavonols: Quercetin, Kaempferol, Myricetin, Isorhamnetin
  • Flavones: Luteolin, Apigenin
  • Flavanones: Hesperetin, Naringenin, Eriodictyol
  • Flavan-3-ols: (+)-Catechin, (+)-Gallocatechin, (-)-Epicatechin, (-)-*Epigallocatechin, (-)-Epicatechin 3-gallate, (-)-Epigallocatechin 3-gallate, Theaflavin, Theaflavin 3-gallate, Theaflavin 3'-gallate, Theaflavin 3,3' digallate, Thearubigins
  • Anthocyanidins: Cyanidin, Delphinidin, Malvidin, Pelargonidin, Peonidin, Petunidin

External links


  Results from FactBites:
 
flavonoid: Definition and Much More from Answers.com (1531 words)
chalcones, flavanones, flavones, flavonols, anthocyanidins (flavylium cations), flavan 3-ols (catechins), flavan 3,4-diols (proanthocyanidins), biflavonoids and oligomeric flavonoids, isoflavonoids, and the aurones.
Flavonoids are widely distributed in plants fulfilling many functions including producing yellow or red/blue pigmentation in flowers and protection from attack by microbes and insects.
Flavonoids have been referred to as "nature's biological response modifiers" because of strong experimental evidence of their inherent ability to modify the body's reaction to allergens, viruses, and carcinogens.
Flavonoids : by Ray Sahelian, M.D., Health Benefits of Flavonoids (4838 words)
The flavonoids are further divided into subclasses based on the connection of an aromatic ring to the heterocyclic ring, as well as the oxidation state and functional groups of the heterocyclic ring.
Flavonoids are polyphenolic compounds that occur ubiquitously in fruits and vegetables.
Flavonoids are components of fruit and vegetables that may be beneficial in the prevention of disease such as cancer and cardiovascular diseases.
  More results at FactBites »

 
 

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