Soy.Furanone has another name of cyclic high furanone. It had rich natural sweet smell and fragrance, together with slight flavor of caramel and savor of roaster food .The intensity of the fragrance is 3 to 9 times than that of Furanone. It is an essential raw material for edible perfume and a good reinforcer of sweetness agent. This product can be widely applied in fruit, coffee, bread, maple juice and other food, drink and tobacco. It is approved a safe edible perfume by FEMA with the registration No.3623.Recently, it has been found out by Japanese researchers that it has the active function of anticancer 4-Hydroxy-2(or5)-ethl-5(or2)-methyl-3(2H)-furanone. Acetoin, with another name of Acetyl methyl carbionl has a strongly odor of cream and fat ,which can give out a pleasant fragrance of cream. It¡¯s not only used in compounding the flavor which fragrant types are cream ,meat and strawberry ,but also directly used on cream food, It can be found in beer, which plays an important role in the wine flavor, its FEMA number in 2008. 3-Hydroxy-2-bytanone