期刊论文

中文

农业工程学报

1002-6819

2004

20

6

201-204

10.3321/j.issn:1002-6819.2004.06.047

本校为第一机构

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2.5 h,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200 W、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30 min,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 t...