摘要
对混合盐析法从烟末中提取果胶进行了研究。采用正交实验对提取过程中的各个条件进行了分析探讨 ,得出了较佳的工艺条件 。
Experiments on extraction of pectin from tobacco dust with an aqueous solution of ammonium iron sulphate and potassium aluminium sulphate were conducted. The conditions for the extraction and precipitation of pectin, such as extraction temperature, extraction duration,water volume added, pH of extract, precipitation temperature, precipitation time, ratio of ammonium iron sulphate to potassium aluminium sulphate, and pH of precipitation were optimized with the orthogonal matrix. The suitable conditions obtained were that 1) temperature, duration, water volume added, and pH for extraction of pectin were 80 to 90℃, one hour, 150ml water, and pH 2.0, and 2) temperature, ratio of salts, duration, and pH for pectin precipitation were 80℃, 2:1, 2 hours, and pH 4.0 respectively. The color of pectin produced under these conditions was better.
出处
《烟草科技》
EI
CAS
2001年第11期18-20,共3页
Tobacco Science & Technology
关键词
混合盐析法
果胶
烟末
提取工艺
Mixed salting\|out
Pectin
Tobacco dust
Extraction
