国产精品无码av在线_最新毛片视频在线看国产视频_无码熟妇人妻肥屁av在线互动交流_波多野结衣50连精喷在线_国产成人网红vip福利播放_bt天堂在线www中文_自拍偷自拍亚洲精品图区_成年美女啪啪拍网站免费vip_爽爽影院免费观看视频_了解最新青草青精品视频

Banner
?
Lycopene
-2019-12-27 11:25:37-

Product physical indicators

Lycopene is a red, fat-soluble pigment with acicular dark red crystals, insoluble in water, slightly soluble in methanol and ethanol.Unstable to light and oxygen, when iron brown.Molecular formula C40H56, relative molecular weight 536.85, CAS NO.:502-65-8.There are 11 conjugated double bonds and 2 non-conjugated double bonds in the molecular structure, forming a straight chain hydrocarbon.Does not have the physiological activity of vitamin A, but has strong antioxidant function.When tomato is heated, the trans lycopene will be cis-isomerized to produce cis-lycopene, which is beneficial to improve the nutritional value of lycopene.Lycopene is found in tomatoes and has about twice the antioxidant activity of carotene.At present, eating tomatoes is the body's main way to obtain lycopene.

Last article：

Next article：Carotene}