How to choose the Marigold extract lutein , lutein ester from Margold

Marigold lutein, chemical formula is C40H5602, Marigold lutein low temperature extraction technology is the use of sub-critical state solvent low temperature extraction, sub-critical low temperature extraction process product - lutein in the effective component index of trans-lutein extract relatively high, can effectively reduce the waste of resources, is worth promoting the method.
It has been found that the light and thermal stability of lutein itself, as well as the tolerance range of human PH value are not as good as lutein ester. Due to the above factors, the bioavailability of lutein is low in the storage process and the process of human consumption. In nature, lutein basically exists in the form of esterification. It is a new research topic for carrot biologists.

Through the process of scientific experiments, it was found that lutein ester can not only be naturally hydrolyzed into free lutein in the human body, but also the bioavailability is 61.6% higher than that of lutein crystals. The use of lutein has begun a new change, and the latest lutein products have chosen lutein esters as functional raw materials.

Lutein ester is A compound of one molecule of lutein and one or two molecules of fatty acids. It exists in our daily diet like we are familiar with dietary fats, vitamins A and E. Like lutein, it is a naturally occurring nutrient in natural things. Lutein ester extracted from marigold chrysanthemum: it can be naturally decomposed into lutein in the human body, which has the effect of protecting eyesight, alleviating visual fatigue, preventing age-related macular lesions, cataracts and other diseases of eye care and other anti-aging effects.
The new resource food lutein ester approved by the Ministry of Health is the best source of lutein. The results show that lutein degrades in acidic stomach environment, while lutein ester does not degrade. The bioavailability of esterified lutein was 61.6% higher than that of non-esterified lutein.

Since 2010, the Chinese National standard GB2960 stipulates that lutein can only be used as a colorant, the dosage is 0.05 g/kg, such a small amount of addition can not meet the nutritional needs of the eyes.

Lutein ester is an important carotenoid fatty acid ester, dark reddish brown fine particles. Most lutein esters that exist in nature can be divided into trans-lutein esters and cis-lutein esters, which are mainly all-trans molecular configurations. All trans lutein esters can be divided into: lutein monoester and lutein diester

At room temperature, high-purity lutein ester (content 60%-95%) is golden yellow ester orange red powder, it is easily soluble in chloroform, dichloromethane, dichlorocarbons, and other chlorinated hydrocarbons, soluble in n-hexane, acetone, ethyl acetate, ethanol and other solvents, its stability is stronger than lutein, only under high temperature, strong acid, iron ion and oxygen and other factors to destroy lutein ester.

It is widely found in plants such as marigold chrysanthemum, pumpkin, cabbage and rhizome. Among them, the content in marigold chrysanthemum is the most abundant, up to 30% to 40%. In marigold and other plants, lutein is generally combined with fatty acids (such as lauric acid, palm acid, etc.) to form esters.

The effect of lutein ester on human body
Lutein ester is decomposed into free lutein after absorption by the human body, which has the basic function of crystal lutein to supplement the loss of lutein in the human body (supplement dosage should be less than 12 mg/day).
(1) Supplement the macular pigment density in the macular area of the human retina, protect the macula, and promote the development of the macula.
(2) Protect the eyes from light damage, delay the aging of the eyes and prevent lesions.
(3) antioxidants help prevent cardiovascular sclerosis, coronary heart disease and tumor diseases caused by aging.
(4) Protect eyesight and relieve symptoms of visual fatigue; (Blurred vision, dry eyes, bulging eyes, eye pain, photophobia, etc.)
(5) Prevent macular degeneration and retinitis pigmentosa, and reduce the production of glass film warts.

Lutein ester is a very stable food colorant
Natural lutein ester is an important carotenoid fatty acid ester, the main configuration is all-trans, with C=C long chain hair color group, showing a gorgeous golden color. There is no active hydroxyl group on both sides, so it is determined that lutein ester is a very stable food coloring agent. It is very stable to light, heat and air, and can be widely used in food, beverage, cosmetics and other applications, and has broad application prospects. At the same time, after emulsification, it can be made into water-soluble colorants. Natural lutein esters will replace chemically synthesized food grade colorants to improve people's health.

How to choose lutein in Marigold:
Marigold lutein product specifications: 5%, 10%, 20%, 30%, 50%, 60%, 80%, 90% (the highest specifications recognized on the market are 10%, 20% and 90%)
Detection method: HPLC