Effect of phosphorus on biodiesel production from Scenedesmus obliquus under nitrogen-deficiency stress

- Nitrogen starvation enhanced biodiesel productivity compared to nitrogen repletion.
- Biodiesel productivity was further strengthened by the supply level of phosphorus.
- More P was accumulated in cells under nitrogen starvation with sufficient P supply.
- A potential application to combine P removal with biodiesel production via microalgae.