中文摘要：

从花生加工的副产物花生红衣中分离纯化花生衣红天然色素，采用静态吸附的方法对7种大孔吸附树脂进行了初步比较，筛选出4种性能较优树脂（LS-610B、AB-8、HP-20和DM-21）进行了静态吸附／解吸动力学研究和吸附等温线实验。确定了花生衣红色素的分析条件为pH10，波长为500nm。结果表明，DM-21树脂适合Langmuir模型拟合，而HP-20，LS-610B与Freundlich模型拟合度较高，AB-8树脂对两种模型都比较符合。拟二阶动力学模型能很好地描述四种树脂的吸附过程特征。综合动态吸附／解吸实验的结果，DM-21树脂由于较高的吸附容量和解吸量，最适合纯化花生衣红色素。

英文摘要：

In order to separate and purify the red pigment from peanut skins, a by-product of the peanut industry, seven macroporous resins were preliminary compared for the adsorption of the red pigment by static experiments. Four resins （LS-610B, AB-8, HP-20, and DM-21 ） were then selected for the further studies of static adsorption/ desorption kinetics and isotherms. Moreover, the absorbance measurement condition of pH 10, wavelength 500 nm was selected to determine the content of the red pigment. Results show that the adsorption isotherm data of DM-21 were fitted well to the Langmuir isotherm. However, HP-20 and LS-610B fitted better to Freundlich isotherm, and AB-8 fitted well to both Langmuir and Freundlich isotherms. Furthermore, it was also found that the pseudo-second order model were suitable to characterize the process of adsorption. Combined both static adsorption and dynamic adsorption/desorption experiments, DM-21 was selected as a suitable resin for peanut-skin red pigment purification due to its the high desorption and adsorption capacity.