| 摘要 |
NEW MATERIAL:A bonded material having the following properties. Appearance, white, pale yellow or yellow powder; solubility, easily soluble in water. EXAMPLE:Bonded ascorbic acid and geraniin of formula. USE:An agent suppressing lipid peroxide level in living body. Utilizable in the fields of medicine, food and cosmetic, etc. It has excellent safety and stability. PREPARATION:For example, 1-2mol of a tannin such as geraniin extracted from Geranium nepalense and 2-10mol of ascorbic acid are dissolved or dispersed in a mixture of water and alcohol and made to react with each other by heating at <=40 deg.C under stirring. The reaction mixture is treated by column chromatography to separate the objective material. |
