Antioxidant - Wikipedia
网页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 Explained in Simple Terms - Healthline
网页2023年7月12日 · Antioxidants are molecules that can help your body fight off harmful free radicals, which have been linked to health conditions like diabetes and cancer. They’re found in many plant-based foods...
Antioxidants: What They Do and Antioxidant-Rich Foods
网页2021年12月27日 · What are antioxidants? “Antioxidants are naturally occurring chemicals in foods that can serve as a defense against free radicals,” explains Hopsecger. “Free radicals are normal byproducts of metabolism that occur in our bodies or can be a result of environmental factors, like air pollution and smoke.”
Antioxidants – The Nutrition Source
网页These defenders are labeled “antioxidants.” They work by generously giving electrons to free radicals without turning into electron-scavenging substances themselves. They are also involved in mechanisms that repair DNA and maintain the health of cells. There are hundreds, probably thousands, of different substances that can act as antioxidants.
14 Healthy Foods High in Antioxidants
网页2024年2月14日 · These foods have also been linked to other health benefits and may protect against chronic disease. Antioxidants are compounds made in the body and found in food that help defend cells from free ...
Definition, Types, Benefits and Quiz - Biology Dictionary
网页2017年5月2日 · Antioxidants are molecules that prevent the oxidation of other molecules. Oxidation is a chemical reaction in which electrons are lost. In living things, this process can be harmful, leading to the breakdown of organic molecules.
Understanding antioxidants - Harvard Health
网页2019年1月31日 · "Antioxidant" is a general term for any compound that can counteract unstable molecules called free radicals that damage DNA, cell membranes, and other parts of cells. Because free radicals lack a full complement of electrons, they steal electrons from other molecules and damage those molecules in the process.
Antioxidants: Classification, Natural Sources, Activity/Capacity ...
网页2021年7月25日 · 1. Introduction. Recently, much research has been devoted to free radical chemistry. There are undeniable pieces of evidence that free radicals are responsible for the oxidative damage of biomolecules such as proteins, lipids, or nucleic acids in the structures of cell nuclei and molecular membranes.
Understanding mechanisms of antioxidant action in health and …
网页2023年9月15日 · This Review describes the mechanisms of action of antioxidants synthesized in vivo, antioxidants derived from the human diet and synthetic antioxidants developed as therapeutic agents, with a focus...
Antioxidant | Free Radicals, Oxidative Stress & Reactive Oxygen …
网页2024年8月21日 · antioxidant, any of various chemical compounds added to certain foods, natural and synthetic rubbers, gasolines, and other substances to retard autoxidation, the process by which these substances combine with oxygen in the air at room temperature. Retarding autoxidation delays the appearance of such …