Compound that inhibits the oxidation of other molecules
Structure of the antioxidant glutathione
Antioxidants are compounds that inhibit oxidation (usually occurring as autoxidation), a chemical reaction that can produce free radicals. Autoxidation leads to degradation of organic compounds, including living matter. Antioxidants are frequently added to industrial products, such as polymers, fuels, and lubricants, to extend their usable lifetimes.[1] Foods are also treated with antioxidants to forestall spoilage, in particular the rancidification of oils and fats. In cells, antioxidants such as glutathione, mycothiol, or bacillithiol, and enzyme systems like superoxide dismutase, can prevent damage from oxidative stress.[2]
Known dietary antioxidants are vitamins A, C, and E, but the term antioxidant has also been applied to numerous other dietary compounds that only have antioxidant properties in vitro, with little evidence for antioxidant properties in vivo.[3] Dietary supplements marketed as antioxidants have not been shown to maintain health or prevent disease in humans.[3][4]
^Klemchuk, Peter P. (2000). "Antioxidants". Ullmann's Encyclopedia of Industrial Chemistry. doi:10.1002/14356007.a03_091. ISBN 3527306730.
^Helberg, Julian; Pratt, Derek A. (2021). "Autoxidation vs. Antioxidants – the fight for forever". Chemical Society Reviews. 50 (13): 7343–7358. doi:10.1039/D1CS00265A. PMID 34037013. S2CID 235200305.
^ ab"Antioxidants: In Depth". National Center for Complementary and Integrative Health, US National Institutes of Health. 1 November 2013. Retrieved 17 March 2023.
Antioxidants are compounds that inhibit oxidation (usually occurring as autoxidation), a chemical reaction that can produce free radicals. Autoxidation...
Oxygen radical absorbance capacity (ORAC) was a method of measuring antioxidant capacities in biological samples in vitro. Because no physiological proof...
oxygen to give iodine. A reducing agent is a chemical term for an antioxidant. Its antioxidant properties can be expressed quantitatively as a redox potential :...
mediated through the activation of melatonin receptors and its role as an antioxidant. In plants and bacteria, melatonin primarily serves as a defense mechanism...
The Trolox equivalent antioxidant capacity (TEAC) assay measures the antioxidant capacity of a given substance, as compared to the standard, Trolox. Most...
SkQ is a class of mitochondria-targeted antioxidants, developed by Professor Vladimir Skulachev and his team. In a broad sense, SkQ is a lipophilic cation...
A polyphenol antioxidant is a hypothetized type of antioxidant, in which each instance would contain a polyphenolic substructure; such instances which...
This is a list of antioxidants naturally occurring in food. Vitamin C and vitamin E – which are ubiquitous among raw plant foods – are confirmed as dietary...
voltammetry can be used to determine the antioxidant capacity in food and even skin. Low molecular weight antioxidants, molecules that prevent other molecules...
and protection of cells from premature aging, antioxidant activity, antioxidant content and antioxidant properties, and protection of DNA, proteins and...
reducing ability of plasma (FRAP, also Ferric ion reducing antioxidant power) is an antioxidant capacity assay that uses Trolox as a standard. The FRAP assay...
present. A wide range of stabilizers is therefore needed. The market for antioxidant stabilisers was estimated at US$1.69 billion for 2017, with the total...
Emblicanins are a type of polyphenol found in Indian gooseberry (Emblica officinalis). Ghosal, S.; Tripathi, V. K.; Chauhan, S. (2010). "ChemInform Abstract:...
epithelium produces a variety of antioxidant proteins that help protect the spermatozoa from oxidative damage. The antioxidant proteins produced include catalase...
Some of those antioxidants include gutathione S-transferase, glutathione peroxidase, superoxide dismutase, and catalase. The antioxidants present in cherry...
from the original on August 15, 2020. Retrieved May 27, 2015. "7Up with antioxidants to be taken off the market". Tulsa World. November 9, 2012. Archived...
basic leucine zipper (bZIP) protein that may regulate the expression of antioxidant proteins that protect against oxidative damage triggered by injury and...
oxidative stress or damage. Trolox equivalent antioxidant capacity (TEAC) is a measurement of antioxidant strength based on Trolox, measured in units called...
and protection of cells from premature aging, antioxidant activity, antioxidant content and antioxidant properties, and protection of DNA, proteins and...
referred to as disodium metabisulfite. It is used as a disinfectant, antioxidant, and preservative agent. When dissolved in water it forms sodium bisulfite...
an antioxidant. While not necessarily recommended for consumption, it is possible that an extract from V. conica could be used as an antioxidant supplement...
compound, chemically a derivative of phenol, that is useful for its antioxidant properties. BHT is widely used to prevent free radical-mediated oxidation...
along with the natural fruit flavor used. Its flagship product is Bai Antioxidant Infusions. In 2015, it launched a brand of bottled water called Bai Antiwater...
numerous biological activities, including anti-inflammatory properties, antioxidant activity and skin healing. It is used as a cosmetic ingredient and dietary...
referred to as "vitamin E". Tocopherols and tocotrienols are fat-soluble antioxidants but also seem to have many other functions in the body. Vitamin E exists...
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