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Antibacterial ent-kaurene from Brazilian propolis of native stingless bees
M Velikova1, V Bankova, I Tsvetkova
1Institute of Organic Chemistry with Centre of Phytochemistry, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria.
Fitoterapia
|November 15, 2000
Abstract:
Three ent-kaurene diterpenoids, not previously described as constituents of propolis, were isolated from a sample collected by Brazilian native bees Melipona quadrifasciata anthidioides. One of them, kaurenoic acid, as well as the total extract, displayed moderate antibacterial activity.