Lutein is a xanthophyll and one of **0 known naturally occurring carotenoids. Lutein is synthesized only by plants and like other xanthophylls is found in high quantities in green leafy vegetables such as spinach, kale and yellow carrots. In green plants, xanthophylls act to modulate light energy and serve as non-photochemical quenching agents to deal with triplet chlorophyll (an excited form of chlorophyll), which is overproduced at very high light levels, during photosynthesis.
Lutein is obtained by animals by ingesting plants.[3] In the human retina, lutein is absorbed from blood specifically into the macula lutea,[4] although its precise role in the body is unknown.[3] Lutein is also found in egg yolks and animal fats.
| 国家: | China |
| 型号: | 5%-80% |
| 离岸价格: | 20 ~ 30 / 获取最新报价 |
| 位置: | - |
| 最小订单价格: | 20 |
| 最小订单: | 25 Kilogram |
| 包装细节: | - |
| 交货时间: | - |
| 供应能力: | - |
| 付款方式: | T/T, L/C |
| 產品組 : | - |
