【摘要】 目的:优化超声波辅助提取槐花水溶性多糖提取工艺。方法:采用单因素试验和二次回归旋转组合试验确定超声波辅助提取条件。结果:在试验范围内各因素对槐花多糖得率的影响程度由大到小依次为超声波处理时间、液料比、超声波功率;超声波辅助提取槐花多糖的最优工艺参数为液料比31:1(mL/g)、超声波功率217W、超声提取时间58min、提取温度30℃。结论:超声波辅助提取时间短、效率高,可作为槐花水溶性多糖的提取工艺。更多还原

【Abstract】 Purpose:To optimize the ultrasonic-assisted extraction process for water-soluble polysaccharides from Sophora japonica flower for improved extraction efficiency. Methods:The optimization strategy used was a series of one-factor-at-a-time investigations and subsequent response surface analysis based on a quadratic regression rotary combination design. Results:Within tested level ranges,the importance of four process parameters affecting extraction yield of polysaccharides from big to small was ultrasonic treatment time,liquid-to-solid ratio and ultrasonic power in turn. Ultrasonic treatment time of 58 min,ultrasonic power of 217 W and extraction temperature of 30 ℃ were found optimum for polysaccharide extraction. Conclusion:ultrasonic assistance is beneficial to shorten extraction time and improve extraction efficiency and consequently,suitable for the extraction of water-soluble polysaccharides from Sophora japonica flower.更多还原