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  Indian J Med Microbiol
 

Figure 3: Analytical high-speed counter-current chromatography chromatogram of petroleum ether extract of Tussilago farfara L. Two-phase solvent system: (a) (n-hexane: ethyl acetate:methanol:water [1:0.5:1.1:0.3]), (b) (petroleum ether:methanol:water [5:8:2, v/v/v]), and (c) (n-hexane:methanol: water [5:8:2, v/v/v]); 1: 2,2-Dimethyl-6-acetylchromanone, 2: tussilagone, 3: 14-acetoxy-7 β-(3'-ethylcis-crotonoyloxy)-lα-(2'-methylbutyryloxy)-notonipetranone (80 mm × 56.6 mm)

Figure 3: Analytical high-speed counter-current chromatography chromatogram of petroleum ether extract of <i>Tussilago farfara</i> L. Two-phase solvent system: (a) (n-hexane: ethyl acetate:methanol:water [1:0.5:1.1:0.3]), (b) (petroleum ether:methanol:water [5:8:2, v/v/v]), and (c) (n-hexane:methanol: water [5:8:2, v/v/v]); 1: 2,2-Dimethyl-6-acetylchromanone, 2: tussilagone, 3: 14-acetoxy-7 β-(3'-ethylcis-crotonoyloxy)-lα-(2'-methylbutyryloxy)-notonipetranone (80 mm × 56.6 mm)