山城紫苕天然色素的提取和分离

Extraction and Adsorption of Natural Pigments from Purple Potato of ShanCheng

采用溶剂萃取和吸附精制的方法对山城紫苕中的天然色素进行提取和分离.通过对萃取剂pH值、浓度,萃取时间、温度等对色素提取率影响的探讨,摸索出了提取山城紫苕色素的最佳工艺条件.萃取液经AB8大孔吸附树脂的柱层析富集精制,获得了高质量、高纯度的花青素类天然色素.

The natural pigments from purple potato of Shancheng were extracted and analysed by solvent extraction and adsorption. The influences of extracting reagent, pH value, concentration, temperature and time on their extraction rate were studied. The adsorption of purple potato on AB8 macroporus absorb resin was also studied. The results showed that the present methods were suitability.