carotenoids
Insoluble in water but soluble in organic solvents. Carotenoids in chloroplasts contain two pigments, carotene and lutein, the former is orange-yellow and the latter is yellow.
The function is to absorb and transmit light energy and protect chlorophyll.
Auxiliary pigments: In plants and photosynthetic bacteria, like the carotenoids lutein and phycobilin, pigments that absorb visible light, such pigments complement the light energy captured by chlorophyll.
Unsaponified lipids.
A group of yellow, orange, red or purple pigments widely distributed in plants and animals.
The conjugated double bond that constitutes the cause of color development has a long-chain polyolefin structure.
Usually several kinds are mixed together. There are many terpene structures with C40 and no nitrogen.
There are about 300 known natural carotenoids, among which the non-oxygenous hydrocarbons are carotene, sputum, etc.;
there are many oxygen-containing ones, such as alcohols, ketones, ethers, aldehydes, epoxides, carboxylic acids and esters, etc.
Among them, there are fucoxanthin, lutein (, violaxanthin, neoxanthin, etc.), which all belong to carotenoids.
Most carotenoids are insoluble in water, soluble in fat solvents, unstable and easy to oxidize .
β-carotene is one of the carotenoids and an orange-yellow fat-soluble compound.
It is the most ubiquitous and stable natural pigment in nature.
Many natural foods such as: green vegetables, sweet potatoes, carrots, spinach, papaya, mango, etc., are rich in beta-carotene.
β-carotene is an antioxidant with detoxification effect and an indispensable nutrient for maintaining human health.
It has significant functions in anti-cancer, prevention of cardiovascular diseases, cataracts and antioxidants, and thus prevents aging and aging. Various degenerative diseases.
β-Carotene can be converted into vitamin A after entering the human body, and there will be no accumulation of vitamin A poisoning caused by excessive intake.
In addition, it also has a good effect in promoting the reproduction and growth of animals.
Natural β-carotene, known as the essence of nature, exists in carrots and can be converted into vitamin A after being ingested by the human digestive organs.
It is currently the safest product to supplement vitamin A.
If a person simply supplements chemically synthesized vitamin A, it is easy to cause poisoning, while natural carrots are not only non-toxic, but also have the effect of scavenging free radicals and quenching singlet oxygen, resisting lipid peroxidation, and reducing the risk of certain chronic diseases.
There are two kinds of β-carrot, natural and synthetic. The β-carrot synthesized by chemical method is all-trans.
It cannot be completely absorbed by the human body, and it will have a certain degree of toxic and side effects on the human body.
Long-term use will also cause irreversible lesions on the human body, while the naturally extracted β-carotene is easily absorbed by the human body and has good antioxidant capacity.
Comments
Post a Comment