| Customization: | Available |
|---|---|
| CAS No.: | 472-61-7 |
| Formula: | C40h52o4 |
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Astaxanthin is a keto-carotenoid. It belongs to a larger class of chemical compounds known as terpenes (as a tetraterpenoid) built from five carbon precursors, isopentenyl diphosphate, and dimethylallyl diphosphate. Astaxanthin is classified as a xanthophyll (originally derived from a word meaning "yellow leaves" 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 components, 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 lipid-soluble pigment. Its red-orange 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.
| Analysis Item | Specification | Analysis Result | Method | |
| Appearance | Red or dark red powder | Complied | ||
| Odour | Seaweed freshness | Complied | ||
| Loss on drying ( ) | ≤5 | 2.78 | GB 5009.3 - 2016 | |
| Ash | ≤5 | 1.45 | GB 5009.4 - 2016 | |
| Astaxanthin Assay () | ≥3.5 | 3.67 | HPLC | |
| Heavy Metal Analysis | ||||
| Lead (ppm) | ≤1.0 | 0.76 | GB 5009.12 - 2017 | |
| Arsenic (ppm) | ≤1.0 | 0.89 | GB 5009.11 - 2014 | |
| Mercury (ppm) | ≤0.1 | Not detected | GB 5009.17 - 2014 | |
| Cadmium (ppm) | ≤1.0 | Not detected | GB 5009.15 - 2014 | |
| Microbial Analysis | ||||
| Total Plate Count (CFU/g) | ≤10,000 | 7800 | GB 4789.2 - 2016 | |
| Yeast and Moulds (CFU/g) | ≤50 | Not detected | GB 4789.15 - 2016 | |
| Coliforms (MPN/g) | ≤0.92 | Not detected | GB 4789.3 - 2016 | |
| E. Coli (/g) | Not detected | Not detected | GB 4789.3 - 2016 | |
| Salmonella (/25g) | Not detected | Not detected | GB 4789.4- 2016 | |
| Safety | This product is safe for intended use. It is produced from a toxic-free microalgae Haematococcus pluvialis. | |||
| Information Storage | Production and analysis have been carried out in appropriate food manufacturing facilities according to | |||
| Shelf Life | Sealed in original packaging and use it as quick as possible once opened. Recommended to store under 4ºC. Shipment can be handled at room temperature. | |||
| 24 months in original packaging. | ||||
| The above test indexes are in accordance with USP38 | ||||
Najin Import and Export (Shandong) Co., Ltd. is a comprehensive, diversified, and comprehensive company with BDO, PEG, PPG, PTMEG, MDI, TDI, PVA, NMP, and polyether polyols, polyester polyols, and polymer polyols as its main industrial chains. We have a professional sales team that has won recognition and praise from the industry with exquisite technology, sound administrative management, and good teamwork. The product is sold to multiple domestic and foreign enterprises.
We always adhere to the principle of "quality first, customer first, and reputation first", and are committed to providing customers with the best products. We will also continue to build a professional chemical product supply chain with the highest quality service, best products, and maximum efforts.
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