Molecular capsule technology use in the molecular structure of polymer compounds and living with the geometry of the cavity structure (e.g., mesh, linear, cone cavity, etc.), by the method of physical chemistry at the molecular level the essence of chimeric, inclusion, makes possible the embedding of essence, people call it the 'molecular capsule' image, is a kind of microcapsule method of molecular level. The molecular encapsulated powder flavor prepared by Bolton Group has good stability, oxidation resistance and slow release properties.