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Changsha Vigorous-tech Co., Ltd.

    

buy Lycopene


[China]
Posted Date: August 30, 2006    Expiry Date: Never
Free Member
   
Description
Actions:Lycopene may have anticarcinogenic and antiatherogenic activities.

DESCRIPTION
Lycopene is a member of the carotenoid family of chemical substances. Lycopene, similar to other carotenoids, is a natural fat-soluble pigment (red, in the case of lycopene) found in certain plants and microorganisms, where it serves as an accessory light-gathering pigment and to protect these organisms against the toxic effects of oxygen and light. Lycopene may also protect humans against certain disorders, such as prostate cancer and perhaps some other cancers, and coronary heart disease.
Carotenoids are the principal pigments responsible for the colors of vegetables and fruits (see Beta-Carotene and Lutein and Zeaxanthin). Lycopene is responsible for the red color of red tomatoes. In addition to tomatoes (Lycopersicon esculentum) and tomato-based products, such as ketchup, pizza sauce, tomato juice and tomato paste, lycopene is also found in watermelon, papaya, pink grapefruit and pink guava. Processed tomato products are more available dietary sources of lycopene than fresh tomatoes. The average daily intake of lycopene is approximately 25 milligrams, with 50% of this in the form of processed tomato products.
Lycopene is an acyclic isomer of beta-carotene. Beta-carotene, which contains beta-ionone rings at each end of the molecule, is formed in plants, including tomatoes, via the action of the enzyme lycopene beta-cyclase. Lycopene is a 40 carbon atom, open chain polyisoprenoid with 11 conjugated double bonds. The structural formula of lycopene is represented as follows:


Lycopene
All-trans lycopene is the predominant geometric isomer found in plants. Cis isomers of lycopene are also found in nature, including 5-cis, 9-cis, 13-cis and 15-cis isomers. Lycopene found in human plasma is a mixture of approximately 50% cis lycopene and 50% all-trans lycopene. Lycopene in processed foods, is mainly in the form of the cis-isomer.
Lycopene is a lipophilic compound and is insoluble in water. Lycopene is also known as psi-carotene. Its molecular formula is C40H56 and its molecular weight is 536.88 daltons. In contrast to beta-carotene, lycopene has no vitamin A activity and thus is a nonprovitamin A carotenoid.
 
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Related Product: lycopene
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