Abstract
The report features the first isolation of paclitaxel from wood of conservated Taxus sumatrana. The T. sumatrana is a nationally protected endemic plant that has been successfully cultivated outside its natural habitat at the Singgalang Conservation Centre in West Sumatra. The paclitaxel was utilised as a reference standard for evaluating its presence in different parts of T. sumatrana. This analysis exhibits that the acetone extract from T. sumatrana bark contained the highest paclitaxel concentration, measuring about 0.473 ± 0.031 ppm. The isolated paclitaxel demonstrated potent cytotoxic activity against A549, HeLa, and MCF7 cancer cells, by IC50 values of 3.26 ± 0.334, 2.85 ± 0.257, and 3.81 ± 0.013 μM, respectively. This outcome provides scientific support for conservation programs and campaigns for the community to engage in conservation efforts.
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