Abstract
Bioassay-guided chromatographic purification of the antitubercular chloroform extract of Pandanus tectorius Soland. var. laevis leaves afforded a new tirucallane-type triterpene, 24,24-dimethyl-5β-tirucall-9(11),25-dien-3-one (1), squalene and a mixture of the phytosterols stigmasterol and β-sitosterol. Microplate Alamar Blue Assay (MABA) showed that 1 inhibited the growth of Mycobacterium tuberculosis H37Rv with a MIC of 64 μg/mL, while squalene and the sterol mixture have MICs of 100 and 128 μg/mL, respectively.
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Philippine Council for Advanced Science and Technology Research and Development for the fellowship of M. Tan and the Research Center for the Natural Sciences, UST.
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Tan, M.A., Takayama, H., Aimi, N. et al. Antitubercular triterpenes and phytosterols from Pandanus tectorius Soland. var. laevis . J Nat Med 62, 232–235 (2008). https://doi.org/10.1007/s11418-007-0218-8
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DOI: https://doi.org/10.1007/s11418-007-0218-8