Lycopene is kind of natural pigment with bright red color, it is narrowly distributed world, it is mainly existed in tomato, watermelon, red grapefruit, Chinese quava, guava, balsam pear etc.

Lycopene is an important member of the carotinoid families, molecular formula is c40h56, molecular weight is 536.85, it may restrain and reduce the occurring rate of prostate cancer, womb cerical cancer, pancreatic cancer and vesica demonstrated that lycopene is the strongest carotinoid for neutralizing free-radicals.