摘要
该文测定了芝麻叶中总黄酮的含量,并对芝麻叶黄酮的提取工艺进行了研究。重点探讨了采用乙醇提取法和微波处理与乙醇提取相结合的方法提取芝麻叶黄酮类化合物的最佳工艺条件。试验结果表明:芝麻叶中总黄酮的含量为0.98%;乙醇提取法的最适工艺参数是浸提剂乙醇浓度为80%、浸提温度为80℃、料液比为1∶25、浸提时间为2.5h,如此条件可使黄酮提取率达95.6%;微波处理与乙醇提取相结合的方法的最适工艺参数是微波功率200W、微波处理时间70s,乙醇浓度为80%、浸提温度为80℃、料液比为1∶25、浸提时间为30min,这种工艺可使黄酮提取率达95.8%。
The content of total flavonoids in sesame leaves and its extraction technology were studied in this paper. By means of the methods of ethanol-extracting and ethanol-extracting with microwave processing, the optimum extraction conditions of flavonoids in sesame leaves were determined. The results showed that the content of total flavonoids in sesame leaves was (0.98%), the optimum conditions of ethanol-extracting were obtained as follows: 80% ethanol as extraction solvent at 80℃ for 2.5 h, and the ratio of material to solvent was 1∶25. Using the technological parameters above mentioned, the average extraction rate of total flavonoids in sesame leaves was 95.6%. Meanwhile, the optimum conditions of ethanol-extracting with microwave processing were as follows: 200 W of microwave power for 70 s, 80% ethanol extracting at 80℃ for 30 min, and the ratio of material to solvent was (1∶25). Using this technology, the extraction rate of total flavonoids in sesame leaves was 95.8%.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2004年第6期201-204,共4页
Transactions of the Chinese Society of Agricultural Engineering
关键词
芝麻叶
黄酮类化合物
提取工艺
微波
sesame leaves
flavonoids
extraction technology
microwave
