【摘要】 为了进一步开发利用天麻多糖,采用超声波提取法从天麻中提取天麻多糖,在单因素试验的基础上,用响应曲面法建立超声提取的二次响应曲面方程,考察了提取温度、提取时间和料水比对天麻多糖超声提取的影响。结果表明,超声波提取法可使天麻多糖提取率得到较大提高,其最佳提取工艺条件为:提取温度66℃,提取时间34 min,料水比1:45,在此工艺条件下,天麻多糖提取率为32．78％。更多还原

【Abstract】 In order to utilize Gastrodia elata Bl. , the ultrasonic extraction of Gastrodia elata Bl. polysaccharides was researched in this paper. On the basis of one-factor tests, the method of response surface analysis was adopted. A second order quadratic equation for ultrasonic extraction of Gastrodia elata Bl. polysaccharides was built. Based on the analysis of the response surface plots,effects of extraction temperature,extraction time and liquid-to-solid ratio on uatrasonic ware extraction of Gastrodia elatb Bl. were explored. The results showed that the ultrasonic extraction could significantly increase the extracting rate of Gastrodia elata Bl. Polysaccharides. The analysis of the response surface showed that the optimum parameters were determined as follows:ultrasonic extraction temperature 66℃,time 34 min and the ratio of Gastrodia elata Bl. to water was 1 : 45. Under the optimized condition, the extraction rate of Gastrodia elata Bl. Polysaccharides was 32. 78%.更多还原