盐析法从苹果渣中提取果胶的工艺条件研究

A Salting Out Study on the Precipitation Conditions of Extracting Pectin from Apple Residue

探讨了以苹果渣为原料用盐析法提取果胶的工艺条件。本实验首次系统地采用五种盐进行果胶沉淀析出的对比研究,通过筛选确定了硫酸铝作为果胶沉淀剂,同时对盐析时盐用量、pH值、温度、反应时间等影响因素进行实验,得到盐析法的最佳工艺条件,为批量生产提供了依据。

In this article, the precipitation conditions of extracting pectin from appleresidue by salting out were discussed. In our experiments, five types of salts were first systematically used to make comparison study on pectin precipitation, The aluminum sulfate was considered the optimal precipitant. Meanwhile, by studying the affecting factors suchas salt amount, pH value, temperature, and precipitation time, the optimal process conditions were obtained, which provide a foundation for the scale-up batch process.