| Certificates/Standards: | N; |
| Monthly Output: | Not provided |
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| Main Sales Markets: | North America，Central/South America，Western Europe，Eastern Europe，Australasia，Asia，Middle East，Africa |
| Sample Provided: | No |
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Astaxanthin /æstəˈzænθɨn/ is a carotenoid. It belongs to alarger class of phytochemicals known as terpenes, which are built from fivecarbon precursors; isopentenyl diphosphate (or IPP) and dimethylallyldiphosphate (or DMAPP). Astaxanthin is classified as a xanthophyll, butcurrently employed to describe carotenoid compounds that have oxygen-containingmoities, hydroxyl (-OH) or ketone (C=O), such as zeaxanthin and canthaxanthin.Indeed, astaxanthin is a metabolite of zeaxanthin and/or canthaxanthin,containing both hydroxyl and ketone functional groups. Like many carotenoids,astaxanthin is a colorful, lipid-soluble pigment. This colour is due to theextended chain of conjugated (alternating double and single) double bonds atthe centre of the compound. This chain of conjugated double bonds is alsoresponsible for the antioxidant function of astaxanthin (as well as othercarotenoids) as it results in a region of decentralized electrons that can bedonated to reduce a reactive oxidizing molecule.
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