详细信息
反萃取降低高纯单宁酸生产中没食子酸残留量的应用 被引量:3
Application of counter extraction in gallic acid reduction during high-purity tannin acid production
文献类型:期刊文献
中文题名:反萃取降低高纯单宁酸生产中没食子酸残留量的应用
英文题名:Application of counter extraction in gallic acid reduction during high-purity tannin acid production
作者:荆才 罗志军 胡鹏刚 李家斌 何志鸿 王绍江 罗波 许晗
第一作者:荆才
机构:[1]贵州大学酿酒与食品工程学院;[2]贵阳单宁科技有限公司;[3]贵州理工学院科技处;[4]贵州大学化学与化工学院
第一机构:贵州大学酿酒与食品工程学院,贵州贵阳550025
年份:2017
卷号:36
期号:3
起止页码:156-159
中文期刊名:中国酿造
外文期刊名:China Brewing
收录:CSTPCD;;北大核心:【北大核心2014】;
基金:贵州省重大专项黔科合重大专项字(20126003)
语种:中文
中文关键词:没食子酸;高纯单宁酸;萃取;反萃取;提纯优化
外文关键词:gallic acid; high-purity tannic acid; extraction; counter extraction; purification and optimization
摘要:为了进一步降低单宁酸中没食子酸残留量,以单宁酸为原料,采取萃取、反萃取等分离技术,以单宁酸中没食子酸残留量为评价指标,对提纯工艺进行优化。其最终优化工艺条件为选择pH 6.8的磷酸钠盐溶液作为反萃剂,单宁酸与乙酸乙酯固液比为1∶5(g∶mL),单宁酸与反萃液固液比为1∶2.5(g∶mL)。在此条件下单宁酸中没食子酸含量可降低到1%以内。
In order to further reduce the residual content of gallic acid in tannic acid, using tannic acid as raw material, by extraction, counter extrac- tion and other separation techniques, the purification technology was optimized using gallic acid residual content in tannic acid as evaluation index. Finally the optimum technology conditions were obtained as sodium phosphates (pH6.8) as stripping agent, tannic acid to ethyl acetate ratio 1:5 (g:ml) and tannic acid to stripping agent ratio 1:2.5 (g:ml). Under the conditions, the residual content of gallic acid in tannic acid could decrease to less than 1%.
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