摘要
以天仙果果实为原料采取盐酸溶液萃取、酒精沉析制取果胶;确定最佳提取工艺条件为提取温度87-90℃、pH 0.5-1.0、萃取时间2h、料液比1∶20。研究了亚硫酸氢钠对天仙果果胶得率的影响;用咔唑比色法对其含量进行了准确测定。
In this paper pectin was extracted from Ficus beecheyyana tsiangii by method of acid-solution and alcohol precipitation. The optimal extracting condition was confirmed as follows： temperature is 87- 90℃ ,pH is 0.5-1.0,time is 2h, rate of material to solution is 1 ： 20. The effect of H2SO3 on obtaining rate of pectin was studied. Its content was measured by colorimetry of carbazole.
出处
《中国林副特产》
2007年第3期6-8,共3页
Forest By-product and Speciality in China
关键词
果胶
咔唑比色法
提取
含量测定
pectin
colorimetry of carbazole
extract
measuring content
