Product Description
Lutein, also known as carotenoids, carotenols, phytolutein, riboflavin, marigold anthocyanin and plant lutein, etc., its English name is Lutein, its molecular formula is C40H56O2, and its relative molecular weight is 568.85. Orange yellow powder, paste or liquid, insoluble in water, soluble in hexane and other organic solvents.
Generally found in green leafy vegetables. Lutein itself is an antioxidant and can absorb harmful light such as blue light.
Co-existing with zeaxanthin in nature, it is the main component of plant pigments in corn, vegetables, fruits, flowers and other plants. It is contained in the chloroplasts of leaves and can transfer absorbed light energy to chlorophyll a. It is speculated that it has a negative impact on photooxidation and photooxidation. Destruction is protective. It is also the main pigment that forms the macular area of the human eye's retina.
Lutein is a nutrient that humans can absorb when they eat fruits and vegetables daily, but the absorption and utilization rate is generally low.
Lutein is mainly found in vegetables. Although it is a carotenoid, carrots are not the best food source of lutein. The darker the green vegetables, the higher the lutein content. For example, kale, green cauliflower, spinach, asparagus, green lettuce, etc. are rich in lutein. Egg yolk is also a good provider of lutein.
Process flow
Marigold petals → Freeze drying → Crushed and sieved → Add the ethanol solution of the extractants THF and KOH in proportion, react at room temperature under nitrogen protection → Filter → Rinse → Concentrate → Paste → Dissolve in ethanol aqueous solution (volume ratio 1: 1) Medium → Use acetic acid to adjust the pH of the extract to neutral → Centrifuge to remove the supernatant → Crude lutein product.
Effects of lutein:
Protect eyesight
Lutein has an important protective effect on the macula in the retina. Its deficiency can easily lead to macular degeneration and blurred vision. This can lead to vision degeneration, myopia and other symptoms. Lutein is the precursor of VA and can be converted into VA in the human body. The main physiological function of lutein on the eyes is as an antioxidant and photoprotective effect. The optic nerve cannot regenerate and is extremely vulnerable to damage by harmful free radicals. The antioxidant effect of lutein can inhibit the formation of harmful free radicals. Lutein can absorb a large amount of blue light. The wavelength of blue visible light is close to that of ultraviolet light. It is the most potentially harmful light among the visible lights that can reach the retina. Before reaching the sensitive cells on the retina, the light first passes through the lutein The highest concentration area. At this time, if the lutein content in the macula is rich, this damage can be minimized.
Antioxidant effect
Lutein has a strong antioxidant effect, can inhibit the activity of reactive oxygen free radicals, and prevent reactive oxygen free radicals from damaging normal cells. Lutein can inactivate singlet oxygen through physical or chemical quenching, thereby protecting the body from damage and enhancing the body's immunity.
Delay arteriosclerosis
Recent research results show that lutein has a delaying effect on the early progression of arteriosclerosis.
Effect on retinal degeneration
Supplementing lutein can increase retinal pigment density, improve the vision of RP patients, and improve the treatment rate of RP.
Prevent and treat retinopathy and pigmentary degeneration
Lutein is the main component of the macular pigment in the retina of the human eye. Blue light has the highest energy among all visible lights that can reach the retina, and has the strongest damage to the macular area, and lutein can filter out blue light; high-energy blue light can also induce the production of free radicals and damage optic nerve cells, while Lutein can quench singlet oxygen and capture reactive oxygen free radicals, playing an antioxidant role. Lutein can prevent the damage caused by blue light to the eyes, protect retinal tissue, improve vision, make vision more accurate, protect the retina, reduce the occurrence of cataracts, and prevent retinitis pigmentosa. Zeaxanthin and lutein are highly concentrated in the macula The area, which is the part responsible for fine vision, is very important for eye care.
Feed application:
As a new functional feed additive, lutein not only has an effect on fish coloration, but also has the effects of promoting growth, increasing digestive enzyme activity and reducing fat accumulation to a certain extent. It can also be used in poultry products, such as improving the skin of broiler chickens, and adding it to chicken feed to increase the nutritional value of eggs.
Feed-grade natural lutein is a natural carotenoid colorant extracted from marigold flowers. The product is in the form of yellow powder. Its excellent coloring performance is widely used in poultry skin, fat, shins and egg yolk coloring. It can also be used for coloring. Coloration of trout, salmon and shrimps and crabs.
The product is a natural colorant, compared with synthetic colorants:
1. Low cost, safer, more reliable and healthier;
2. High degree of saponification, good absorption and coloring effects;
3. After anti-oxidation and coating treatment, the quality is stable and efficient.
Application prospects of lutein
Lutein has a bright yellow color, is insoluble in water, and is soluble in oil and ethanol. It has strong coloring power and is resistant to light, heat, acid, and alkali. It can be widely used for coloring food, health care crystals, and medicinal crystals. Due to the strong and stable coloring ability of lutein, especially its various physiological effects on the human body, lutein is gradually being valued. The development and application prospects of lutein will be very broad. In my country, lutein is widely used as a feed additive. European and American countries have used lutein as a food additive to give food crystals their bright color.
As food additives and pharmaceutical additives
Because lutein is safe and non-toxic, has strong coloring power, low dosage, bright color, and good taste. In recent years, European and American countries have used it as food additives, as well as in the coloring of pharmaceutical sugar coatings and capsules, improving the appearance of food and pharmaceuticals and increasing people's compliance and liking.
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