Microalgae nutrient trial results announced by EnAlgae

EnAlgae scientists have recently published a paper in Bioresource Technology that discusses how nutrient ratios can be manipulated to simultaneously control microalgal biomass production and minimize nutrient wastage.

Based on trials using a Nannochloropsis sp., problems with the traditional…

addition of phosphorus (P) are identified. Although essential for cell division and optimum biomass productivity P is often supplied to excess, which is both unnecessarily wasteful and contributes to pollution.

The authors show that reducing the concentration of P by half has little impact on productivity, but results in clear cost savings and improved sustainability of microalgal biomass production.

The work was undertaken in the Department of Biosciences at Swansea University, under the auspices of the EnAlgae project. Funding was supplied by the EU through the INTERREG IVB NWE program and a Knowledge Economy Skills Scholarship.

Anyone wishing to find out more about the results of the EU project EnAlgae can now find all the latest scientific papers relating to the project available online.

“Over the past two and a half years our scientists and engineers have been working on developing best practice in algal growth and optimization in the overall procedure,” said project manager Dr. Shaun Richardson. “Now we’re getting to the stage in the project where we can start sharing the peer-reviewed results.

“To date there are ten papers online, and this number will go up in the following months, so please, keep coming back to check on what’s available.”

The papers, ranging from optimizing biostocks, to membrane technology and upscaling aquaculture wastewater treatment, can be found by visiting enalgae.eu/scientific-papers.htm


Photo caption: Influence of the N:P supply ratio on biomass productivity and time-resolved changes in elemental and bulk biochemical composition of Nannochloropsis sp. Courtesy: Bioresource Technology, 169, 588-595.

View original article at: Microalgae nutrient trial results announced by EnAlgae

Reprinted with permission from Algae Industry Magazine

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