柠檬香茅草总黄酮和多糖含量的测定

摘要

The total flavonoids and polysaccharides of Cymbopogon citratus(DC.)Stapf were analyzed by UV spectrophotometry.The total flavonoids of Cymbopogon citratus(DC.)Stapf were 5.14 mg/g(before essential oil extraction)and 1.50 mg/g(after essential oil extraction),respectively.The polysaccharides of Cymbopogon citratus(DC.)Stapf showed little difference before and after essential oil extraction,those were 7.93%and 7.26%,respectively.It was concluded that Cymbopogon citratus(DC.)Stapf with those active ingredients showed great potential in health food.%采用分光光度法测定柠檬香茅草总黄酮和多糖的含量,并采用单因素试验研究总黄酮最佳提取工艺路线.研究结果表明,柠檬香茅草提取的总黄酮含量为5.14 mg/g(未提取挥发油之前)、1.50 mg/g(提取挥发油之后),柠檬香茅的多糖含量在挥发油提取前后变化不大,分别为7.93%和7.26%,该结论为柠檬香茅草的综合利用提供一定的参考.