Jujube(Zyzyhpus Jujuba dates)is the fruit of Zizyphus Jujuba Mill plant, Zizyphus Mill, Rhamnacede. It is well-known that jujube date is abundant in nutriments, e.g. vitamin and minerals. Recently, it is also reported that jujube date contains different bioactive substances, such as cAMP、 oleanolic acid, etc. Here we explored the optimal technical conditions for the extraction and purification of flavonoids from jujube stone, examined its antioxidant and antitumor activities in vitro, with expectation to pr...