摘要
以萌发糙米为原料提取多酚类化合物,探讨超声作用时间、乙醇浓度、料液比等因素对总酚得率的影响。应用Box-Behnken中心组合实验和响应面分析法,最终确定萌发糙米中多酚类物质提取适宜条件为超声作用时间11.08 min、乙醇体积分数80%、料液比(g∶mL)为1∶17.62,此条件下多酚提取得率为60.13μg/g。
Studies were made on extracting polyphenol from pre-germinated brown rice. The effects of ultrasonic extraction time, ethanol concentration and proportion of material and solution on yield were discussed. Box-Behnken center-united experiment design and response surface methodology were used to optimize the extraction technology of polyphenol of pre-germinated brown rice. The optimal conditions of extraction were concluded as follows： ultrasonic extraction time 11.08rain, ethanol concentration 80% , proportion of material and solution 1 ： 17.62. the actual detection value of polyphenol extraction rate was 60. 13 μg/g,that is almost equal to the predictable value.
出处
《食品与发酵工业》
CAS
CSCD
北大核心
2011年第2期205-209,共5页
Food and Fermentation Industries
基金
淮安市2008年度科技支撑计划(工业)项目(HAG08056)
关键词
萌发糙米
多酚
超声提取
响应曲面
pre-germinated brown rice, polyphenol, ultrasonic extraction, response surface analysis
