【摘要】 从我国栓皮栎(Quercus variabilis B1.)成熟橡椀和放陈了的橡椀浸提的单宁沉淀中分离出几种结晶物,其主要成分是一种黄色针状结晶。此结晶物经光谱分析,物理化学性质检验,制备衍生物及化学合成等方法确定为鞣花酸(ellagicacid)。更多还原

【Abstract】 Several kinds of crystals were separated from tannin sediment from mature and long-stored valonea of oriental oak (Quercus variabilis Bl.). The main constituent of sediment was isolated as yellow needle-shaped crystals and identified as ellagic acid by spectral analysis, physical and chemical tests, preparation of its derivatives and synthesis.更多还原