Extracting materials from the shell of Xanthoceras sorbifolia Bunge and applying the extracted materials to making drugs and functional foods

This invention proposed applications of the extracted materials from shell of Xanthoceras sorbifolia Bunge to making drugs for enhancing brain functions. The extracted materials from the shell of X. sorbifolia include 2˜10 percent of crude fats, 15˜20 percent of crude protein, 15˜25 percent of Bunkankasaponin A. B. C. D., 20˜30 percent of sugar and 7˜12 percent of water as well as two kinds of sterols of (3 ,5 ,20R,24S)-stigmasta-7, trans-22-dien-3-ol and (3 ,5 ,20R,24R)-stigmasta-7-en-3-ol. The applications of this invention shows evidently effective for curing diseases of mental retardation and deficiency, dementia, enuresis, and increasing body's ability of resistance to activity of glycosuria. The extracted materials can also be made of functional foods for increasing brain's functions.