https://www.selleckchem.com/pr....oducts/epz020411.htm
Bioassay-guided fractionation was conducted on dichloromethane extract from the rhizomes of Globba schomburgkii Hook.f. which have previously been reported as the part with the highest antibacterial activity. 10 fractions and 20 sub-fractions were obtained and evaluated for their potency against various strains of bacteria. The most active sub-fractions were 8 times more effective against Staphylococcus aureus and Micrococcus luteus than the original crude extract. Moreover, 2 pure compounds namely petasol and (E)-15,16-dinorlabda-8(1