In recent years, bamboo leaves as new resource were researched hotly. There were a lot of active substances beneficial to body health, such as bioactive polysaccharides, flavonoids. Most researches of bamboo leaves were focused on extracting solution and flavonoids extracted from them, few were reported on polysaccharides extracted from bamboo leaves, and getting polysaccharides and flavonoids in the same plants and recycling the dregs also were not reported. Furthermore, fewer researches on pilot extractin...