Complaint
Product Name | Marigold Extract |
Latin Name | Tagetes erecta L |
Part of Plant | Flower |
Active Ingredient | Lutein(Xanthophyll), Zeaxanthin, Lutein Esters |
CAS No. | 127-40-2 |
Chemical formula | C40H56O2 |
Description | Lutein exists mainly in the form of diester in marigold. Under the same light and heat conditions, lutein ester is more stable than lutein. Lutein esters are less fluid than lutein. The metabolic processes of the two are different in the human body, and lutein ester is converted into lutein and absorbed. Lutein and zeaxanthin are the only two carotenoids found in the human eye. For eye health care, relieve visual fatigue, protect vision; It is a natural functional pigment (strong coloring force, uniform and stable color, yellow and orange); It's also a natural antioxidant.Lutein has an asymmetric three-dimensional structure and can only be extracted naturally, while zeaxanthin has a symmetrical structure and can be synthesized chemically, with three three-dimensional configurations |
Characteristics | Lutein and zeaxanthin are insoluble in water; Lutein and zeaxanthin slightly soluble in n-hexane, soluble in chloroform and ethyl acetate; Lutein esters are insoluble in water; Lutein ester soluble in chloroform, dichloromethane, carbon dichloride, isochlorinated hydrocarbon, soluble in n-hexane, acetone, ethyl acetate, ethanol and other solvents. |
Bio | Lutein is a fat-soluble vitamin whose absorption spectrum contains a near-blue-violet light that helps protect the eye's retina from ultraviolet light. It can inhibit the activity of oxygen free radicals and prevent the destruction of oxygen free radicals to normal cells. Antioxidant activity, inhibition of tumor angiogenesis and cell proliferation. Lutein can be used as an effective adjuvant to enhance the hypoglycemic function. Anti-oxidation |
Item | Standard | Test Method |
Assay | Lutein ≥2% | HPLC |
Appearance | Orange yellow Liquid | Visual |
Odor | Characteristic | Organoleptic |
Particle Size | 95% passed 80 mesh | Ch. P. C. Rule 47 |
Loss on Drying | ≤5.00% | Ch. P. C. Rule 52 |
Ash | ≤5.00% | Ch. P. C. Rule 2302 |
Heavy Metals | ≤10mg/kg | Colorimetric method |
Arsenic (As) | ≤2mg/kg | Ch. P. C. Rule 21-ICP-MS |
Lead (Pb) | ≤2mg/kg | Ch. P. C. Rule 21-ICP-MS |
Mercury (Hg) | ≤0.1mg/kg | Ch. P. C. Rule 21-ICP-MS |
Cadmium (Cd) | ≤1mg/kg | Ch. P. C. Rule 21-ICP-MS |
Total Plate Count | ≤1000CFU/g | Ch. P. C. Rule 80 |
Total Yeast & Mold | ≤100CFU/g | Ch. P. C. Rule 80 |
Coliforms | ≤10CFU/g | Ch. P. C. Rule 80 |
Salmonella | Negative | Ch. P. C. Rule 80 |
Pesticide Residues | ≤10mg/kg | EC 1831/2003 |
