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当前位置: 首页 > 文章 > 甘草酸单铵盐的制备及纯化新工艺研究 食品工业科技 2011 (4) 324-326
Position: Home > Articles > Study on new process for the production and purification of monoammoniun glycrrhizinate Science and Technology of Food Industry 2011 (4) 324-326

甘草酸单铵盐的制备及纯化新工艺研究

作  者：
史高峰;徐静;周宝华;邓丽;陈学福
单  位：
兰州理工大学石油化工学院
关键词：
甘草酸;甘草酸单铵盐;冰乙酸;重结晶;乙醇
摘  要：
考察了以甘草为原料,采用溶剂法制得甘草酸单铵盐,并利用工业乙醇和80%乙醇为重结晶溶剂对其精制纯化。通过对比实验,确定了新的溶剂法工艺条件为:热回流法提取的甘草酸,经工业乙醇浸提、浓氨水氨化,在酸化过程中,先加一定量冰乙酸调节pH到4.5,再加前述2倍量冰乙酸制得甘草酸单铵盐粗品,其含量达66.7%,得率为2.58%。获得了结晶精制纯化工艺为:经工业乙醇、80%的乙醇和工业乙醇对粗品交替重结晶三次,固液比分别为1:40、1:15和1:40,最终甘草酸单铵盐含量达80.1%,得率为1.36%。
译  名：
Study on new process for the production and purification of monoammoniun glycrrhizinate
作  者：
SHI Gao-feng,XU Jing,ZHOU Bao-hua,DENG Li,CHEN Xue-fu(Institute of Petro-Chemical Technology,Lanzhou University of Technology,Lanzhou 730050,China)
关键词：
glycrrhizin;glacial acetic acid;monoammoniun glycrrhizinate;recrystal;alcohol
摘  要：
Through solvent process,monoammoniun glycrrhizinate was gained from radix glycyrrhizae,and it was refined through recrystallization method using the solvent—industrial alcohol and 80% alcohol.The improve conditions of solvent process were found by the contrast experiment,they were glycrrhizin extracted hot reflux,and then digestioned by industrial alcohol,aminateed by stronger ammonia water,treated through first dropwise a certain quality of glacial acetic acid into triammonium glycyrrhizinate at pH 4.5 and then dropwise 2 times of glacial acetic acid mentioned earlier,purity and yield of crude monoammoniun glycrrhizinate were 63.3% and 2.58%.Following the optimum conditions,recrystallization were tested,they were treated by recrystaled in sequence of industrial alcohol,80% alcohol and industrial alcohol with solid-to-liqid ratio of 1:40,1:15,1:40 for crude monoammoniun glycrrhizinate,purity and yield of monoammoniun glycrrhizinate were 80.1% and 1.36% after all.

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