专利名称：Koshokuzai
发明人：NITSUCHI YASUTAKE 申请号：JP26386786
impact是什么意思申请日：19861107
公开号：JPH0233685B2
公开日：
原料英语
电脑设计学校
whale怎么读19900730
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特朗普胜选演讲视频摘要：PURPOSE:To obtain an anticarious substance, consisting of purified gymnemic acid prepared from Gymnema sylvestre, having high inhibitory effects on formation of bacterial plaques and capable of remarkably suppressing growth of cariogenic bacteria. CONSTITUTION:Dried leaves of Gymnema sylvestre are extracted with hot water and the resultant extract solution is adjusted to pH3 with 2N sulfuric acid to provide precipitates containing crude gymnemic acid. The precipitates are collected by centrifugal ttling and the aggregates are washed with water and extracted with ethanol. The extract is then concentrated under reduced pressure and acetone in a volume of 2 times is added to the concentrate to carry out centrifugal ttling. The supernatant liquid is subquently concentrated to dryness under reduced pressure and extracted with diethyl carbonate as a solvent as the boiling point. Substances deposited from the above-mentioned solvent are collected and evaporated to dryness, subjected to high-speed liquid chromatography to afford the aimed purified gymnemic acid. The resultant purified gymnemic acid has action of inhibiting formation of glucan by cariogenic bacteria as well as surely preventing formation of bacterial plaques and is preferably ud by containing in an amount of
moderately>=10mM.
neu申请人：NITSUCHI YASUTAKEstevie wonder>霍比特人>圆脸女孩适合的短发
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