中文摘要：

采用DA201-C型大孔树脂对黄酒中肽类物质进行吸附,并考察了时间、温度、pH条件对吸附率的影响,得到最适的吸附条件为：吸附时间为70 min,吸附液pH值为3,温度为32℃.吸附后用不同体积分数的乙醇对树脂进行洗脱,可将被吸附的肽类物质分成极性不同的4组分,并考察了各组分洗脱液清除自由基的能力,结果显示,在洗脱组分中,体积分数50%的乙醇具有较高的解析率及清除自由基的能力.

英文摘要：

DA201-C macroporous resins were applied to adsorb peptides in millet wine; and the effects of time, pH and temperature on the desorption rate were studied to obtain the optimum adsorption conditions. The results showed that the optimum conditions were as follows： adsorption time 70 min, pH 3.0 and temperature 32 ℃. The macroporous resin was eluted by different volume fractions of ethanol to fractionate the adsorbed peptides into four parts with different polarities ; and the free radical scavenging capability of each eluted part was studied. The results showed that the eluted part obtained using 50% ethanol had high desorption rate and high free radical scavenging capability.