The requirements of micronutrients for biomass and hydrocarbon production in Botryococcus braunii UTEX 572 were studied using response surface methodology. The concentrations of four micronutrients (iron, manganese, molybdenum, and nickel) were manipulated to achieve the best performance of B. braunii in laboratory conditions. The responses of algal biomass and hydrocarbon to the concentration ...

Algae are predicted to play an important role in tomorrow’s bioeconomy. The technical goal of the project was to develop enhanced algal cultivation processes utilising waste flows and to increase the overall material and energy efficiency of algal processing for biodiesel and biogas production. The project produced new knowledge on the boundary conditions for cost efficient algal cultivation an...

Nutrient enrichment of shallow coastal waters changes the composition of plant communities so that slow-growing, benthic macrophytes are replaced by fast-growing algae such as phytoplankton and ephemeral macroalgae. This scenario suggests that fast-growing algae suffer more from nutrient limitation than slow-growing algae at low nutrient availability. We tested this hypothesis by comparing the ...

Microalgae have been regarded as a natural resource for sustainable materials and fuels, as well as for removal of nutrients and micropollutants from wastewater, and their interaction with bacteria in wastewater is a critical factor to consider because of the microbial diversity and complexity in a variety of wastewater conditions. Despite their importance, very little is known about the ecolog...

nitrogen as one of the important nutrients of microalgae has significant affect on the growth and nutrition value of the algae if the changes. in present study the growth and fatty acids content of the different concentration of nitrate (0, 0.62, 1.25, 2.5 and 5 mm from no3) was studied during a 12 day cultivation period of haematococcus sp. and desmodesmus cunaetus. at 22 °c in laboratory cond...

The quality of our environment has become the predominant issue of today. In Florida, as well as other states in the country, there has been particular concern over the quality of our lakes. The United States Environmental Protection Agency has estimated that, of the 12 million lakes found in the United States, 25% are currently facing water quality problems (Nair and Graetz, 1997). Eutrophicat...

Organism surfaces represent signaling sites for attraction of allies and defense against enemies. However, our understanding of these signals has been impeded by methodological limitations that have precluded direct fine-scale evaluation of compounds on native surfaces. Here, we asked whether natural products from the red macroalga Callophycus serratus act in surface-mediated defense against pa...