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Phosphorus plays an important role in enhancing biodiesel productivity of Chlorella vulgaris under nitrogen deficiency

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 Apr 2013Publisher:Elsevier BVJournal:Bioresource Technology, volume 134, pages 341-346 (issn: 0960-8524,

Authors: Fei-Fei Chu; Paul K.S. Lam; Raymond J. Zeng; Pei-Jie Cai; Pei-Na Chu; Wen-Wei Li;

doi: 10.1016/j.biortech.2013.01.131

pmid: 23517904

Phosphorus plays an important role in enhancing biodiesel productivity of Chlorella vulgaris under nitrogen deficiency

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Abstract

To investigate the role of phosphorus in lipid production under nitrogen starvation conditions, five types of media possessing different nitrogen and phosphorus concentrations or their combination were prepared to culture Chlorella vulgaris. It was found that biomass production under nitrogen deficient condition with sufficient phosphorus supply was similar to that of the control (with sufficient nutrition), resulting in a maximum lipid productivity of 58.39 mg/L/day. Meanwhile, 31P NMR showed that phosphorus in the medium was transformed and accumulated as polyphosphate in cells. The uptake rate of phosphorus in cells was 3.8 times higher than the uptake rate of the control. This study demonstrates that phosphorus plays an important role in lipid production of C. vulgaris under nitrogen deficient conditions and implies a potential to combine phosphorus removal from wastewater with biodiesel production via microalgae.

Related Organizations

City University of Hong Kong
China (People's Republic of)
University of Science and Technology of China
China (People's Republic of)
State Key Laboratory of Marine Pollution
Hong Kong
State Key Laboratory of Marine Pollution
Hong Kong

Keywords

Magnetic Resonance Spectroscopy, Nitrogen, Fatty Acids, Esters, Phosphorus, Biofuels, Biomass, Chlorella vulgaris

Impact byBIP!

	citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	186
	popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.	Top 1%
	influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).	Top 10%
	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 1%