本文研究了微波提取生地多糖的工艺,通过正交试验确定了微波提取的最佳工艺参数为：料液比1:40，提取温度70 ℃，微波功率500 W，提取时间60 s。用苯酚-硫酸光度法测定其含量，结果令人满意。

The microwave-assisted extraction was used to extract the Rehmannia Root polysaccharides. The extraction conditions were optimized by orthogonal test and the optimal solid-liquid ratio, extraction temperature, microwave power and extraction time were 1:40, 70 ℃, 500 W and 60 s, respectively. Under the optimal conditions, high content of the extracted polysaccharides, determined by Phenol-sulfuric acid spectrophotometry method, was achieved.