Lycopene has no beta carotene beta zhi muscone ring structure, so it cannot be converted into vitamin A in the body, do not belong to the provitamin A. The formula for C40H56, there are a number of cis trans isomer. Lycopene pumpkin seed extract is a fat-soluble substances, poorly soluble in water, methanol, ethanol, soluble in ether, petroleum ether, hexane and acetone, soluble in chloroform, carbon disulfide, benzene and other organic solvents. Lycopene molecules in 11 conjugated double bond and 2 non conjugated double bond, so its stability is poor, prone to cis trans isomerization reaction and oxidation degradation. Factors affecting the stability of lycopene including oxygen, light, heat, acid, metal ions, oxidant and antioxidant, etc.
For the most part of the existence of natural lycopene is all trans configuration, and in human tissue is mostly cis configuration ( 50%), and the body of lycopene proportion of cis configuration is not according to the ghana seed extract differences of dietary lycopene configuration change. Think at present, trans configuration of lycopene in absorption before that most for cis in gastrointestinal allosteric configurations. The protein carotene compounds in food, a large number of soluble dietary fiber (if glue), combined with cholesterol and resin, as well as a lack of iron, zinc and protein, intestinal diseases and so on all may interfere with the absorption of lycopene. Hot working part of natural lycopene can be transformed into cis trans structure structure, and lipid food matrix can promote the release of lycopene, add oil after heat treatment of lycopene than unprocessed lycopene is easier to absorb.
Different human trials reported, the half life of lycopene in 2 ~ 3 days to 10 ~ 33 days. Lycopene general nutritional status can be judged by serum concentration of lycopene. More American adults serum lycopene content between 0.42 ~ 0.47 u mol/L, but in our country and dietary structure, the European and American countries and lycopene intake differences, it is lack of lycopene turmeric extract powder content in the serum of residents in our country the system basic data, have been reported for a community of Shanghai 30 ~ 69 adults, a 92 - year - old serum samples were determined, lycopene content of an average of about 0.32 mu g/mL (about 0.59 mu mol/L).
Lycopene of long-chain polyunsaturated olefin molecule structure, make its have strong ability to eliminate free radicals and antioxidant capacity. Current research mainly focused on the role of biological oxidation, reduce the risk of cardiovascular disease and reduce genetic damage and inhibiting tumor development, etc.
Caused oxidative damage is considered to be one of the leading causes of cancer jujube seed powder and heart cerebrovascular disease. Lycopene in vitro antioxidant capacity has been confirmed by many experiments, lycopene quenching singlet oxygen ability is the current commonly used antioxidant beta-carotene, more than 2 times, 100 times that of vitamin E.
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