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Follow on Google News | Vitamins in Plant Extracts-Alfa ChemistryBy: Alfa Chemistry 1 VE VE is a general term for various tocopherols, among which α-tocopherol has the strongest biological activity, and the physiological activities of β-tocopherol, γ-tocopherol and δ-tocopherol are 40%, 8% and 20%, respectively. In most cases, the antioxidant effect of VE is to provide hydrogen ions by reacting with lipoxygen radicals or lipid peroxy radicals, interrupting the lipid peroxidation chain reaction. VE is the most important fat-soluble antioxidant. 2 VC VC, also known as ascorbic acid, is an acidic polyhydroxy compound containing an alpha-ketolactone of 6 carbon atoms. VC has an enol-type hydroxyl group capable of dissociating hydrogen ions, and is the most important water-soluble antioxidant. It can remove active oxygen radicals by supplying electrons step by step, and can promote regeneration of VE. 3 Carotenoid There are more than 600 types of carotenoids, all of which have an isoprenoid structure with 11 double bonds. Carotenoids mainly include β-carotene, Lutein, Zeaxanthin, Lycopene and Astaxanthin. 3.1 β-carotene Studies have found that β-carotene, lutein, zeaxanthin, lycopene and astaxanthin also have significant antioxidant functions. Among them, β-carotene is the most typical representative. β-carotene is a precursor of VA, which has good oxidation resistance, and can suppress the generation of active oxygen by providing electrons, thereby achieving the purpose of scavenging free radicals. 3.2 Lutein and Zeaxanthin There are 8 kinds of isomers of lutein, which are mainly found in dark green vegetables such as cabbage and spinach, and flowers such as calendula and marigold. Zeaxanthin (https://www.alfa- 3.3 Lycopene Lycopene is an acyclic carotenoid with a chemical structure of a linear, all-trans structure consisting of 11 conjugated double bonds and 2 non-conjugated double bonds. This structure can accept the excitation of different electrons to generate ground state oxygen or triplet oxygen lycopene. A triplet oxygen lycopene can remove thousands of singlet oxygen radicals, and its antioxidant capacity is 100 times that of VE, is the strongest anti-aging antioxidant in nature. 3.4 Astaxanthin Astaxanthin (https://www.alfa- End
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