chemical antioxidant

См. также в других словарях:

• Antioxidant — Model of the antioxidant metabolite glutathione. The yellow sphere is the redox active sulfur atom that provides antioxidant activity, while the red, blue, white, and dark grey spheres represent oxygen, nitrogen, hydrogen, and carbon atoms,… …   Wikipedia

• Antioxidant — Any substance that reduces oxidative damage (damage due to oxygen) such as that caused by free radicals. Free radicals are highly reactive chemicals that attack molecules by capturing electrons and thus modifying chemical structures. Well known… …   Medical dictionary

• antioxidant — /an tee ok si deuhnt, an tuy /, n. 1. Chem. any substance that inhibits oxidation, as a substance that inhibits oxidative deterioration of gasoline, rubbers, plastics, soaps, etc. 2. Biochem. an enzyme or other organic substance, as vitamin E or… …   Universalium

• antioxidant — 1. noun a) Any substance that acts to slow or prevent the oxidation of another chemical. b) In nutrition, one of a group of vitamins that act against the effects of free radicals. Ant: oxidant …   Wiktionary

• antioxidant — n. a substance capable of neutralizing oxygen free radicals, the highly active and damaging atoms and chemical groups produced by various disease processes and by poisons, radiation, smoking, and other agencies. Antioxidants occur naturally in… …   The new mediacal dictionary

• Polyphenol antioxidant — A polyphenol antioxidant is a type of antioxidant containing a polyphenolic substructure. In human health these compounds, numbering over 4000 distinct species, are thought to be instrumental in combating oxidative stress, a syndrome causative of …   Wikipedia

• Specialty chemical — A Specialty chemical is a chemical produced for a specialized use. They are produced in lower volume than bulk chemicals, of which petrochemicals, made from oil feedstocks, are the most common. However, both are produced in a chemical plant. Some …   Wikipedia

• PMS (disambiguation) — Contents 1 Science and technology 1.1 Medicine 1.2 Chemistry 1.3 …   Wikipedia

• photochemical reaction — Chemical reaction initiated by absorption of energy in the form of visible (light), ultraviolet, or infrared radiation. Primary photochemical processes occur as an immediate result, and secondary processes may follow. The most important example… …   Universalium

• Vitamin C megadosage — Chemical structure of vitamin C Chemical …   Wikipedia

• organosulfur compound — ▪ chemical compound Introduction also spelled  organosulphur compound , also called  organic sulfur compound   a subclass of organic substances that contain sulfur and that are known for their varied occurrence and unusual properties. They are… …   Universalium