different between antioxidant vs pycnogenol

English

Etymology

anti- +? oxidant

Pronunciation

• IPA^(key): /?ænti??ks?d?nt/

Noun

antioxidant (plural antioxidants)

1. Any substance that acts to slow or prevent the oxidation of another chemical.
2. (nutrition) One of a group of vitamins that act against the effects of free radicals.

Antonyms

• oxidant

Coordinate terms

• antiozonant

Translations

Adjective

antioxidant (not comparable)

1. Acting or having agents that act against oxidation.

Translations

Romanian

Etymology

From French antioxydant

Noun

antioxidant m (plural antioxidan?i)

1. antioxidant

Declension

English

Etymology

From pycno- +?.This etymology is incomplete. You can help Wiktionary by elaborating on the origins of this term.

Noun

pycnogenol (plural pycnogenols)

1. (organic chemistry) Any of a group of flavonoids extracted from the bark of pine trees, especially proanthocyanidins.
   • 1981, J. L. Beal, Natural products as medicinal agents:

     On the other hand, pycnogenols, widely found in old empirical antiscorbutic remedies, seem more appropriate...

   • 1987, Masquelier; Jack, "US Patent 4,698,360 - Plant extract with a proanthocyanidins content as therapeutic agent having radical scavenger effect and use thereof":

     Proanthocyanidins are included in the pycnogenols, a plant polyphenol chemical group, whose physical, chemical and biological properties have been studied in numerous works (see more especially J. Masquelier, J. Michaud, J. Laparra, and M. C. Dumon, Internat. J. Vit. Nutr. Res. 1979, 49, 307-311).

   • 1993, Hans J. Kugler, David Steinman, Life extenders and memory boosters!:

     He has found that pycnogenols not only prevent free radical damage to internal organs but also help prevent skin wrinkling.

   • 1994, Lerner; Sheldon, "US Patent 5,470,874 - Ascorbic acid and proanthocyanidine composition for topical application to human skin":

     The second embodiment of the invention includes the pine bark extract known as proanthocyanidine, also known as pycnogenol.

   • 1999, Corinne T. Netzer, Corrine T. Netzer's Big Book of Miracle Cures:

     As study after study has shown, nutrients such as grape seed extract and pycnogenols are great all-around helpers for capillaries, veins, and arteries.

   • 1999, Mary Ann Liebert, Alternative & complementary therapies, volume 5:

     ...vitamin A (2500 international units [IU]); vitamin C (250 mg); pantothenic acid (200 mg); zinc (10 mg); pycnogenols (5 mg); stinging nettle ( 1 00 mg); cayenne (20 mg).

   • 2001, Medical Economics Company, David Rorvik, Sheldon Saul Hendler, PDR for Nutritional Supplements, page 387:

     The extent of the antioxidant potential of pycnogenol in vivo is unclear.

   • 2004, James J. Gormley, Shari Lieberman, User's Guide to Brain-Boosting Nutrients, page 55:

     Masquelier developed a process to extract these compounds — both from pine bark (in 1951) and from grape seeds (1970). He used the term pycnogenol to refer to this whole family of OPCs.

   • 2005, Midori Hiramatsu, Toshikazu Yoshikawa, Lester Packer, Molecular Interventions in Lifestyle Related Diseases, page 97:

     This may be due to the phenomenon in which pycnogenol at high concentrations blocks the filter channels.
2. An antioxidant dietary supplement containing such an extract.

Synonyms

• OPC
• proanthocyanidin

See also

• grape seed extract
• Proanthocyanidin on Wikipedia.Wikipedia
• Grape seed extract on Wikipedia.Wikipedia