响应面法优化红肉火龙果茎多糖的超声波辅助提取工艺  

Optimization of ultrasonic-assisted extraction of polysaccharides from red pulp pitaya stem by response surface method

作　　者：伊恒杰 许明[1] 翁武斌 杨志坚[1] 廖素凤[1] 

机构地区：[1]福建农林大学作物科学学院,福建福州350002 [2]福建省文德堡食品有限责任公司,福建平潭350400

出　　处：《亚热带农业研究》2016年第1期56-61,共6页Subtropical Agriculture Research

基　　金：福建省区域科技重大项目(2013N3015)

摘　　要：采用响应面分析法对超声波辅助提取红肉火龙果茎多糖的工艺进行优化。选取液料比、超声功率、浸提时间和浸提温度4个因素进行单因素试验,在此基础上进行四因素三水平的响应面优化试验。结果表明,火龙果茎多糖的最佳提取工艺条件为:液料比16.55∶1,超声功率268 W,浸提时间8 min,浸提温度54℃。在此提取条件下,红肉火龙果茎多糖的提取率达到2.755%。An ultrasonic-assisted procedure for extraction of polysaccharides from red pulp pitaya stem was investigated by response surface method（ RSM）. Four technological parameters,including liquid material ratio,ultrasonic power,extraction time and extraction temperature were selected to conduct the single factor tests,and then optimized by response surface analysis（ RSA） with four factors and three levels. The results showed that the optimal conditions for extraction were as follows： liquid-to-solid ratio was16. 55 ∶ 1,ultrasonic power was 268 W,digestion time was 8 min,digestion temperature was 54 ℃. Under those conditions,the actual yield of polysaccharides was up to 2. 755%.

关 键 词：红肉火龙果 多糖 超声波 响应面分析 

分 类 号：S667.9[农业科学—果树学]