It includes: a protective layer, a supporting layer, a slow release layer and core that this creation system, which closes a kind of purple rice plumule extract to eliminate brain free radical of what and embeds structure,; The protection series of strata coat on the what supporting layer, which coats on the what slow release layer, and in core system embedding what slow release layer. By the embedding structure in addition to that can protect extract for a long time, slow release layer also may make extract slow release; The extract system extracts from purple rice plumule and obtains and use for user, and using improves its physiological status or do routine supply use, to reach the effect of eliminating brain free radical.本創作係關於一種用以消除腦部自由基的紫米胚芽萃取物包埋結構包括:一保護層、一支撐層、一緩釋層、及核心;該保護層係包覆於該支撐層上,該支撐層係包覆於該緩釋層上,且該核心係包埋於緩釋層中。藉由該包埋結構除了可長時間保護萃取物,其緩釋層亦可使得萃取物緩慢釋放;該萃取物係從紫米胚芽中萃取而得供使用者使用,藉以改善其生理狀況或做日常補給使用,以達到消除腦部自由基之功效。