The microwave - assisted extraction technique of polysaccharide from Ranunculus ternatus was optimized by response surface analysis method. The results showed that the treatment time of microwave, power of microwave and the ratio of material to water had remarkable effects on the extractive rate of polysaccharide from R. ternatus. The optimum conditions for the microwave -assisted extraction of polysaccharide from R. ternatus were obtained as follows: the power of microwave being 400 W, the treatment time of microwave being 116 s, and the ratio of material to water being 1: 16. Under the optimum conditions, the extractive rate of polysaccharide from R. ternatus was 8.2％. This result also had a good reproducibility.%采用苯酚-硫酸法,通过响应面分析法对猫爪草多糖微波提取工艺进行优选.结果表明料液比、微波功率、处理时间对猫爪草多糖提取率具有显著影响,猫爪草多糖的微波提取最佳工艺为:料液比1∶16,微波功率50%(400 W),处理时间116 s,猫爪草多糖提取率可达8.2%.该优化工艺简单稳定,重现性好,可用于猫爪草多糖的提取.
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