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Antibacterial Activity Components from Elephantopus tomentosus
白花地胆草的抗菌活性成分研究

Keywords: Elephantopus tomentosus,Asteraceae,Chemical constituent,Antibacterial activity
白花地胆草
,菊科,化学成分,抗菌活性

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Abstract:

Nine compounds were isolated from the ethanolic extract from the whole plant of Elephantopus tomentosus Linn. On the basis of spectral data, their structures were identified as epifriedelanol (1), lupeol (2), 6-deoxyisojacreubin (3), butulinic acid (4), ursolic acid (5), ferulic acid (6), 3-formylindole (7), pinellic acid (8) and 30-oxo-lupeol (9), respectively. All compounds were obtained from Elephantopus tomentosus for the first time. Compounds 6 and 7 had inhibitory effect on Staphylococcus aureus, as well as compounds 6 and 8 exhibited inhibitory effects on Ralstonia solanacearum by paper disk diffusion method.

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