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VDK® Free Astaxanthin (3S, 3'S)
CAS Number: 472-61-7
Molecular Formula: C40H52O4
Structural Formula:
Core Production Process
Based on the highly stable and concentrated process foundation of esterified astaxanthin, we innovatively adopted directional hydrolysis technology to precisely cleave the ester bonds and convert them into all-trans free astaxanthin (3S, 3'S) .The product concentration far exceeds the industry level, being more than twice that of the direct glucose fermentation level in the industry, and there is no accumulation of non-esterified carotenoids, reducing the purification difficulty from the source.
Exclusive Core Advantages
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01.
All-trans astaxanthin (3S,3'S) has a stronger antioxidant capacity compared to the traditional chemically synthesized one (which contains cis isomers);
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02.
100% Natural Confirmed by C14 Test;
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03.
The product assay is over 95%, with less impurities such as other carotenoids;
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04.
The esterification state hydrolysis process is more sustainable and environmentally friendly compared to traditional chemical synthesis.
Purity Verification
VDK® Free Astaxanthin (3S, 3'S) features a high trans-isomer ratio and a 3S, 3'S all-L-isomer structure, with low levels of other carotenoids and no harmful impurity peaks.
VDK® Free Astaxanthin (3S, 3'S) Spectra
Spectra of chemically synthesized astaxanthin: containing cis-isomers
Naturalness Report
Quality Specifications
| Test Items | Specification | Methods |
| Characteristics | ||
| Appearance | Purple crystals or crystalline powder | Visual |
| Smell | Characteristic | Olfaction |
| Taste | Characteristic | Gustation |
| Tests | ||
| Loss on drying % | ≤0.5 | GB 5009.3-2016 |
| Ash % | ≤0.5 | GB 5009.4-2016 |
| Heavy metals ppm | ≤10 | CP2020<0821> |
| *Lead ppm | ≤3.0 | GB 5009. 12 |
| *Cadmium ppm | ≤1.0 | GB 5009. 11 |
| *Arsenic ppm | ≤0. 1 | GB 5009.15 |
| *Mercury ppm | ≤0. 1 | GB 5009.17 |
| Assay | ||
| Astaxanthin Content (%) | ≥95.0 | HPLC |
| *Microbiology | ||
| Total Plate Count CFU/g | ≤1000 | GB 4789.2 |
| Yeast & Mold CFU/g | ≤100 | GB 4789.15 |
| Coliform MPN/100g | ≤30 | GB 4789.3 MPN |
| Salmonella/g | Absent /25 | GB 4789.4 |
| Staphylococcus Aureus/g | Absent /25 | GB 4789.10 |
| Conclusion | This product complies with enterprise standard . | |
Applicatoins
High biological activity, applied in coloring, antioxidation, anti-stress, growth promotion, agricultural plant protection, etc.
