Isolation and characterisation of the sesquiterpene lactones from Lactuca sativa L var. anagustata

被引:36
作者
Han, Yi-Feng [1 ]
Cao, Gui-Xiu [1 ]
Gao, Xiao-Jing [1 ]
Xia, Min [1 ]
机构
[1] Zhejiang Sci Tech Univ, Dept Chem, Hangzhou 310018, Zhejiang, Peoples R China
基金
美国国家科学基金会;
关键词
Lactuca sativa L var. anagustata; Compositae; Sesquiterpene lactone; Cytotoxicity; Antioxidation; CONSTITUENTS; GLYCOSIDES;
D O I
10.1016/j.foodchem.2009.11.056
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Lactuca sativa L var. anagustata is widely used as both a delicious vegetable and a traditional medicine in China. Chemical investigation of the methanolic extract of L. sativa L var. anagustata has now led to the isolation of three new sesquiterpenes, together with eight known ones. All the compounds were isolated by chromatography on a silica gel column and preparative thin-layer chromatography (PTLC). Their structures were elucidated by means of spectroscopic methods, including 2D-NMR experiments. Cytotoxicity of the new compounds was assayed against selected cancer cell lines, including the human epithelial carcinoma (HeLa) and human colon carcinoma (HCT-116) cell lines. Radical-scavenging activities of the seven compounds were determined by DPPH radical-scavenging assay. (C) 2009 Elsevier Ltd. All Fights reserved.
引用
收藏
页码:1083 / 1088
页数:6
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