Complaint
product name | Zeaxanthin |
Extract source | Marigold |
Appearance | Orange powder |
Specifications | 5%-73% |
CAS NO. | 144-68-3 |
Test Method | HPLC |
Molecular formula | C40H56O2 |
Molecular weight | 568.85 |
Water soluble | Insoluble in water, ethanol (0.3%), soluble in ethyl acetate |
Grade | Food grade/cosmetic grade |
extraction solvent | Propylene glycol and potassium hydroxide |
Introduction
Zeaxanthin is one of the most common carotenoids in nature and is used in the xanthophyll cycle.It is a pigment synthesized by plants and some microorganisms, and is the pigment of chili peppers, corn, marigolds, goji berries and many other plants and microorganisms that have their characteristic colors. Zeaxanthin is a substance found in the retina of the eye and an important part of the eye.
Different of lutein and zeaxanthin:
The same | The difference between |
Extract from marigold petals | Conjugated double bonds of lutein and zeaxanthin are different |
Chemical similarity is an isomer | Lutein has an asymmetric three-dimensional structure and can only be extracted naturally, while zeaxanthin has a symmetrical structure and can be chemically synthesized, with three three-dimensional configurations. |
Insoluble in water, ethanol | Zeaxanthin is mainly concentrated in the central macular area, while lutein is distributed throughout the retina. |
Antioxidant properties, protects eyesight and filters blue light | The two pigments differ in color and ability to quench singlet oxygen. Zeaxanthin has stronger antioxidant ability than lutein |
Items | Standards | Results |
Physical Analysis | ||
Description | Orange Yellow Fine Powder | Complies |
Assay | 90% | 90.28% |
Mesh Size | 100 % pass 80 mesh | Complies |
Ash | ≤ 5.0% | 2.85% |
| Loss on Drying | ≤ 5.0% | 4.06% |
| Chemical Analysis | ||
| Heavy Metal | ≤ 10.0 mg/kg | Complies |
| Pb | ≤ 2.0 mg/kg | Complies |
| As | ≤ 1.0 mg/kg | Complies |
| Cd | ≤ 0.1 mg/kg | Complies |
| Hg | ≤ 0.1 mg/kg | Complies |
| Residue of Pesticide | Negative | Negative |
| Microbiological Analysis | ||
| Total Plate Count | ≤ 1000cfu/g | Complies |
| Yeast&Mold | ≤ 100cfu/g | Complies |
| E.coil | Negative | Negative |
| Salmonella | Negative | Negative |
*Reduce the risk of age-related eye disease
The protective mechanisms of lutein and zeaxanthin include filtering blue light and antioxidant action, preventing oxidative stress and free radical damage of macular cells. Increased zeaxanthin intake can improve visual function parameters in people with AMD.
*Improved visual performance:
Zeaxanthin has also been shown to help improve visual quality in AMD patients and visually healthy young adults.The supplementation of lutein and zeaxanthin could improve THE MPOD value, visual acuity and contrast sensitivity of AMD patients.
*Anti-blue light:
The macular pigment produced by zeaxanthin forms a natural barrier to the photoreceptor cells of the retina, effectively preventing blue light from reaching the retina and thus improving visual function, such as improving contrast sensitivity, improving glare tolerance, and reducing glare recovery time.
1. Applied in food field, it is used as a kind of natural colorant, which can add color for goods;
2. Applied in health product field, lutein can replenish nourients for eyes, protect the retina;
3. Applied in cosmetics field, it is always used to reduce age pigment of people.
