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Astaxanthin is a keto-carotenoid. It belongs to a larger class of chemical compounds known as terpenes, which are built from five carbon precursors; isopentenyl diphosphate (or IPP) and dimethylallyl diphosphate (or DMAPP). Astaxanthin is classified as a xanthophyll (originally derived from a word meaning & quot;yellow leaves& quot; since yellow plant leaf pigments were the first recognized of the xanthophyll family of carotenoids), but currently employed to describe carotenoid compounds that have oxygen-containing moities, 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 the extended chain of conjugated (alternating double and single) double bonds at the centre of the compound. This chain of conjugated double bonds is also responsible for the antioxidant function of astaxanthin (as well as other carotenoids) as it results in a region of decentralized electrons that can be donated to reduce a reactive oxidizing molecule.
Astaxanthin is found in microalgae, yeast, salmon, trout, krill, shrimp, crayfish, crustaceans, and the feathers of some birds. It provides the red color of salmon meat and the red color of cooked shellfish. Professor Basil Weedon& acute;s group was the first to prove the structure of astaxanthin by synthesis, in 1975.
astaxanthin antioxidant,astaxanthin aging,astaxanthin anti inflammatory,astaxanthin algae??
Astaxanthin, unlike several carotenes and one other known carotenoid, is not converted to vitamin A (retinol) in the human body.
Evergreen Biotech Inc
Address: No.86, Gaoxin Rd., High-Tech Development Zone, Xian, 710065, China, Xian, Shaanxi, China, 710065
Tel: 0086-29-88440259
Evergreen Biotech Inc, located in Xi'an, is a premium manufacturer and supplier of plant extract served to the nutraceutical, pharmaceutical and cosmetic industry. GAP raw materials base(Qinling-Daba Mountains) and GMP conditions guarantee the quality of Evergreen Bio products. Evergreen Bio founds its own quality management(QA/QC) and after-sale service system, with the support of a professional technical team, Evergreen Bio also offers OEM service. Customers can safely start businesses with us. We expect more and more customers know Evergreen Bio-choose Evergreen Bio-win the business.
Evergreen Bio products:
Main botanical extracts/active ingredients/active compounds: Epimedium Extract, Kaempferol, Common Cnidium Fruit Extract, Lotus Leaf Extract, Astaxanthin, Nattokinase, Amygdalin, Phosphatidylserine PS, Fucoxanthin.
For other botanical extracts, pls visit http://www.extractspowder.com
These herbal extracts are widely used in dietary supplement, functional food, nutritional and health food, food and beverage, herb formula and etc.