Influence of crude extract purity and pure paclitaxel content on fractional precipitation for purification of paclitaxel

► Fractional precipitation is a simple method for purifying paclitaxel. ► Crude extract purity and pure paclitaxel content were evaluated. ► These two parameters have a great effect on precipitation behavior. ► Pure paclitaxel content for fractional precipitation was 0.45-0.51% (w/v).