Publications
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Natural pigments from microalgae grown in industrial wastewater Ghent University
The aim of this study was to investigate the cultivation of Nostoc sp., Arthrospira platensis and Porphyridium purpureum in industrial wastewater to produce phycobiliproteins. Initially, light intensity and growth medium composition were optimized, indicating that light conditions influenced the phycobiliproteins production more than the medium composition. Conditions were then selected, according to biomass growth, nutrients removal and ...
Contrasting effects of monochromatic LED lighting on growth, pigments and photosynthesis in the commercially important cyanobacterium Arthrospira maxima Ghent University
The aim of this study was to evaluate the effects of different colored light emitting diodes (LEDs) on the growth, pigment yield, and photosynthetic performance of Arthrospira maxima, a commercially exploited species of cyanobacteria. The highest growth and chlorophyll a (Chl a) concentration were obtained under red LED and white fluorescent light, while the lowest growth and Chl a concentration were observed under blue LED. However, blue LED ...
Enhanced phycocyanin and protein content of Arthrospira by applying neutral density and red light shading filters: a small-scale pilot experiment Hasselt University KU Leuven
BACKGROUND: The cyanobacterium Arthrospira contains proteins and the blue pigment phycocyanin that can be used as a natural colourant in the food industry. The aim of this study was to investigate a strategy for increasing the yield of phycocyanin and protein from Arthrospira cultures by shading the cultures with neutral density and red light filters. Experimentswereconductedunder threedifferent irradianceconditions: (i) laboratory testsunder ...
Economic feasibility of microalgal bacterial floc production for wastewater treatment and biomass valorization: A detailed up-to-date analysis of up-scaled pilot results KU Leuven Ghent University
The economic potential of outdoor microalgal bacterial floc (MaB-floc) raceway ponds as wastewater treatment technology and bioresource of biomass for fertilizer, shrimp feed, phycobiliproteins and biogas in Northwest Europe is assessed. This assessment is based on cost data provided by industry experts, on experimental data obtained from pilot-scale outdoor MaB-floc ponds treating aquaculture and food-industry effluents, and from different ...
Understanding carrageenan extraction principles to build insight in red seaweed cell wall structural organization KU Leuven
Carrageenan is a type of sulfated galactan found in the cell wall of red seaweeds called the carrageenophytes. In 2015, more than 60 thousand tonnes of dry carrageenophytes were processed globally to meet the demand of industrial carrageenan. These industries use carrageenan as a gelling or thickening agent in many of their product applications. Carrageenan gelling properties depend strongly on the carrageenan types and cations used to make the ...
Production of the natural blue dye phycocyanin by the cyanobacterium Arthrospira KU Leuven
Dyes are widely used to colour foodstuffs, cosmetics and textiles. Due to the increasing preference of the consumers to natural over synthetic dyes, sythetic dyes are being replaced by natural ones. Phycocyanin is a blue phycobiliprotein pigment produced commercially from the biomass of the cyanobacterium Arthrospira. It is used as a natural colorant in the food industry (mainly in candies and beverages) and can be potentially used in textile ...