中文摘要：

对山核桃中类脂褐素的提取方法进行了研究，摸索了山核桃中类脂褐素的特征荧光光谱，找到了山核桃中类脂褐素测定的最佳前处理方法，并以此为基础通过单因素试验和L9（3^4）正交试验，研究了提取方式、提取温度、提取时间以及提取溶剂pH对类脂褐素提取率的影响。结果表明采取乙醚进行除油前处理和氯仿：甲醇：磷酸缓冲溶液（2：1：1）的提取溶剂，提取时间为2．0h，提取温度50℃，提取液pH6．0时山核桃类脂褐素的提取率最高。

英文摘要：

in the experiment,we studied the extraction method of lipofuscin - like pigments from Chinese walnuts （carya cathayensis）, explored their feature fluorescence spectrum of lipofuscin - like pigments, and found out their suitable pretreatment of samples before extraction. And then on this basis the single factor test and orthogonal experiment L9 （ 3^4 ） design methods were applied to study the influence of the variables on the lipofuscin - like pigments such as extraction mode, temperature and time, as well as PH of extraction solvent. The results showed that, the highest extraction rate of lipofuscin - like pigments could be gained in the conditions （ extraction solvent with the proportion of chloroform ： methanol ： phosphate buffer （2：1 ： 1 ）, extraction time of 2.0 h, extraction temperature of 50℃ and extraction solution of pH 6.0） after oil removal pretreatment with ether.