- Item No.:
- ALB-HI-094
- Product Name:
- Lutein
- CAS Number:
- 127-40-2
- Molecular Formula:
- C40H56O2
- Molecular Weight:
- 568.87
- Purity:
- 20%-85%HPLC
- Price ($, USD):
- ($, USD) Inquiry
- Synonyms:
- Xanthophyll; alpha-Carotene-3,3'-diol; Lutein, trans-lutein, β,ε-carotene-3,3' -diol, Xanthophyll, Marigold extract, 127-40-2, zeaxanthin
- Package:
- 1kg, 5kg, 25kg
- Supplier:
- ALB Technology Limited
- COA:
-
- MSDS:
-
- Shipping:
- We shipped via FedEx, DHL, UPS, EMS and others courier.
Lutein
Introduce:
Lutein is a xanthophyll and one of 600 known naturally occurring carotenoids. Lutein is synthesized only by plants.
Lutein is obtained by animals directly or indirectly, from plants. Lutein is apparently employed by animals as an antioxidant and for blue light absorption. Lutein is found in egg yolks and animal fats. In addition to coloring yolks, lutein causes the yellow color of chicken skin and fat, and is used in chicken feed for this purpose. The human retina accumulates lutein and zeaxanthin. The latter predominates at the macula lutea while lutein predominates elsewhere in the retina. There, it may serve as a photoprotectant for retina from the damaging effects of free radicals produced by blue light.
Lutein is a lipophilic molecule and is generally insoluble in water. The presence of the long chromophore of conjugated double bonds (polyene chain) provides the distinctive light-absorbing properties. The polyene chain is susceptible to oxidative degradation by light or heat and is chemically unstable in acids.
Lutein is present in plants as fatty-acid esters, with one or two fatty acids bound to the two hydroxyl-groups. For this reason, saponification (de-esterfication) of lutein esters to yield free lutein may yield lutein in any ratio from 1:1 to 1:2 molar ratio with the saponifying fatty acid.
Lutein is isomeric with Zeaxanthin, differing only in the placement of one double bond.
Commercial available Lutein and Zeaxanthinis all extract from Marigold flowers.
Main Functions:
- Used as ingredient in nutrient supplement to keep your eyes healthy.
- Important antioxidant.
- Feed pigments for animals, like chicken, fish etc.
Lutein Powder Specification:
| Item |
Specification |
|
Appearance: |
Orange powder |
|
Lutein content(HPLC) |
Test Value(e.g. 25%HPLC) |
|
Particle size: |
NLT 95% Through 80 mesh |
|
Solvents residue(N-hexane): |
<50ppm |
|
Loss on drying: |
< 5.0% |
|
Ash: |
< 10.0% |
|
Heavy metals: |
< 10ppm |
|
Arsenic(As) |
< 1ppm |
|
Lead(Pb) |
< 3ppm |
|
Cadmium(Cr) |
< 1ppm |
|
Mercury(Hg) |
< 0.1ppm |
|
Total plate count |
<1000CFU/G |
|
Yeast and mold |
<100 CFU/G |
|
Salmonella |
Negative |
|
E.Coli |
Negative |
|
Staphylococcus |
Negative |
Packing & Storage Condition:
Packing: 1kg/bag with two plastic-bags inside. Vacuum packing.
Storage: Stored with room temperature and without sunlight, frozen will be better. After opening please use it immediately, if not please pack it in vacuum.
Shelf Life: 24 months when properly stored.
