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Antimicrobial, antileishmanial and cytotoxic compounds from Piper chaba

Naz, Tarannum, Mosaddik, Ashik, Rahman, Md. Motiur, Muhammad, Ilias, Haque, Md. Ekramul, Cho, Somi Kim
Natural product research 2012 v.26 no.11 pp. 979-986
Piper, antifungal properties, chloroform, cytotoxicity, drugs, fractionation, inhibitory concentration 50, nystatin, petroleum
The petroleum ether and chloroform extracts of the root of Piper chaba showed antimicrobial, antileishmanial and cytotoxic activities. Further bioactivity-guided fractionation led to the isolation of Bornyl piperate (1), piperlonguminine (2) and piperine (3). This is the first report of isolation of compounds (1) and (2) from P. chaba. It was observed that the isolated compounds (1 and 2) showed potent antifungal activity when compared with standard drug Nystatin, and significant cytotoxic activity with the IC₅₀ values of 0.76 and 0.83 µg mL⁻¹, respectively. These compounds were also found to have weak antibacterial and antileishmanial activities. This is the first report about the antileishmanial activity of Piper isolates.