摘要
以乙醇溶液为溶剂,对超声提取花生根中白藜芦醇的工艺进行了研究。首先,建立了白藜芦醇含量测定的紫外分光光度法。然后,以白藜芦醇的提取率为考察指标,考察了不同乙醇浓度、提取时间、提取温度、料液比对花生根中白藜芦醇提取工艺的影响。通过单因素试验和正交试验确定了最佳超声提取条件:乙醇溶液浓度为80%,提取时间为40min,提取温度为50℃,料液比为m(花生根质量,g):υ(乙醇溶液体积,ml)=1:10。此时白藜芦醇得率为0.192‰。
Alcohol as solvent , the ultrasonic extraction of resveratrol from peanut root was studied.Firstly.UV Spectrophotometry was established for the determination of resveratrol in peanut root.Then, using extraction yield of resveratrol as the indexes, the effect of various factors such as alcohol concentration ,extraction time, extraction temperature and ratio of liquid to material on extraction technology of resveratrol was investigated. On the basis of single factor and orthogonal experiment, the optimum conditions were determined as follows： alcohol concentration 80%, the ratio of material to liquid l：10（g：ml）, extrating time 40min and extracting temperature 50℃. Under these conditions, the yield reached 0.192%0.
出处
《中国食物与营养》
2010年第10期38-41,共4页
Food and Nutrition in China
基金
河南省重点科技攻关计划项目(0423011000)
关键词
花生根
白藜芦醇
超声
提取
Peanut Root
Resveratrol
Ultrasonic
Extraction
