利用Box-Behnken响应面法对超声波辅助提取酸枣多糖工艺进行优化。在单因素试验基础上，选择超声波功率、超声时间和液料比为考察因素，以酸枣多糖提取得率为评价指标，采用Box-Behnken响应面法考察各个因素及其交互作用对酸枣多糖提取得率的影响。最佳提取工艺为：超声波功率为360 W，超声时间为23 min，液料比为45∶1（mL/g）。在优化提取工艺参数条件下提取3批酸枣，平均提取得率为（4.8±0.69）%（n=3）。利用Box-Behnken响应面法优化超声波辅助提取酸枣多糖工艺，方法简便，预测性良好。%To optimize the process of ultrasonic-assisted extraction technology of Polysaccharide from Wild ju-jube using Box-Benhnken response surface methodology. The single-factor extraction tests and response surface analysis were employed to optimize the technological conditions, including ultrasonic power, ultrasonic time and liquid/solid ratios. The experiment results indicated that the optimal extraction conditions were ultrasonic power of 360 W, ultrasonic time 23 min, liquid/solid ratios 45∶1 (mL/g), respectively. Under these condi-tions, 3 batchs Polysaccharide from Wild jujube were extracted. The average extraction rate of Wild jujube Polysaccharides was (4.8±0.69)%(n=3). The ultrasonic-assisted extraction process of Wild jujube Polysaccha-rides using Box-Behnken response surface methodology was simple and good predictability.
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