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.
Oxidation and Antioxidation of Natural Products in the Model …
网页2022年4月2日 · Natural products are small molecules naturally produced by multiple sources such as plants, animals, fungi, bacteria and archaea. They exert both beneficial and detrimental effects by modulating biological targets and pathways involved in oxidative stress and antioxidant response.
Antioxidant Agent - an overview | ScienceDirect Topics
网页An antioxidant is the substrate that prevents the oxidation of molecules inside a cell. It is a well-known chemical process that allows the removal of electrons or hydrogen from a substance. Free radicals are produced during the biological oxidation reaction. Because the radicals are reactive, they start the chain reaction simultaneously.
Add antioxidants to your diet - Mayo Clinic
网页2024年3月29日 · Plant-based foods are the best source of antioxidants. These include fruits, vegetables, whole grains, nuts, seeds, herbs and spices, and even cocoa. Plants have naturally occurring antioxidants such as carotenoids, flavonoids, isothiocyanates, and …
Antioxidants, Oxidative Damage and Oxygen Deprivation Stress: a …
网页2003年1月2日 · Oxidative stress is induced by a wide range of environmental factors including UV stress, pathogen invasion (hypersensitive reaction), herbicide action and oxygen shortage. Oxygen deprivation stress in plant cells is distinguished by three physiologically different states: transient hypoxia, anoxia and reoxygenation.
The Significance of Reactive Oxygen Species and Antioxidant ... - PubMed
网页2021年1月6日 · In plants, there is a complex and multilevel network of the antioxidative system (AOS) operating to counteract harmful reactive species (RS), the foremost important of which are reactive oxygen species (ROS), and maintain homeostasis within the cell. Specific AOSs for plant cells are, first and foremost, enzymes of the glutathione-ascorbate ...
Synthesis and antioxygenic activities of seabuckthorn flavone-3 …
网页2011年9月15日 · Antioxidant activities of seabuckthorn extracts, isolated products and a number of flavone-3-ols have been determined. Structure–activity relationships have been discussed. Amongst the compounds tested, gallic acid, which is also present in seabuckthorn, was found to be the most effective antioxidant and radioprotectant.
Guidelines for measuring reactive oxygen species and oxidative …
网页2022年6月27日 · Reactive oxygen species (ROS) have important roles in health and disease, but are chemically complex and difficult to measure accurately. This consensus statement proposes guidelines and best ...
The Mechanism of the Antioxygenic Synergism of Quinones and …
网页Antioxygenic Activity of Lecithin and its Hydrolysis Products.
Antioxidant enzymes regulation in plants in reference to …
网页2019年9月1日 · Reactive oxygen species (ROS) are generated in the plants during cellular metabolism. But extreme environmental conditions like drought, salinity or floods etc. lead to an enhanced level of these ROS in plants, which cause deterioration of lipids, proteins and nucleic acids and ultimately death of a plant.