Cis configuration than the trans configuration of lycopene is easier to absorb. For the most part of the existence of natural lycopene is all trans configuration, and in human tissue is mostly pumpkin seed extract cis configuration (> 50%), and the body of lycopene proportion of cis configuration is not according to the 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 ghana seed extract lack of lycopene 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).

Prior to in vivo metabolite of lycopene is turmeric extract powder still poorly understood, only in human serum, skin and breast milk of metabolites detected two oxidation, namely, 5, 6 - dihydroxy - 5 or 6 dihydro lycopene and 1, 5-2-2, 6 - epoxy lycopene. Presumably epoxide, lycopene may first oxidation generated are restored, and then generate 5 or 6 - dihydroxy - 5 or 6 - dihydro lycopene. Lycopene which are not absorbed mainly through feces excretion, distribution in parts of the skin can be lost because of epidermal keratinization, fall off.

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 jujube seed powder leading causes of cancer 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.