Biomass of microalgae and the components contained in their cells can be used for production heat, electricity, biofuels. The aim presented study was to determine optimal conditions that will most favorable large amounts biomass intended energy purposes. analyzed effect type lighting, time lighting culture, pH culture medium on growth Chlorella vulgaris biomass. experiment carried out vertical ...

Makeup water constitutes a key component in the management of microalgal cultivation systems. However, effect makeup addition on growth remains largely unexplored. This study compared two deionized intervals (1 day and 4 days) for their Scenedesmus dimorphus (S. hereafter) 2000 mL Pyrex bottles under controlled conditions. Cell counts dry algal biomass (DAB) were measured to characterize rate. ...

In the last years, there were two fields that experienced an astonishing growth within biocatalysis community: photobiocatalysis and applications of flow technology to catalytic processes. Therefore, it is not a surprise combination these research areas also gave place several recent interesting articles. However, best our knowledge, no review article covering advances was published so far. Wit...

Characterization of the photic zone and light penetration depth in cultures with ultrahigh cell densities represents a major issue in mass cultures of phytoautotrophic microorganisms grown in enclosed photobioreactors. In a study of the effect of underwater optical properties on the penetration depth of photosynthetically active radiation, the inherent optical properties of algal suspensions, i...

An internally radiating photobioreactor was applied for the production of astaxanthin using the unicellular green alga Haematococcus pluvialis. The cellular morphology of H. pluvialis was significantly affected by the intensity of irradiance of the photobioreactor. Small green cells were widespread under lower light intensity, whereas big reddish cells were predominant under high light intensit...

Open raceway ponds are cost-efficient for mass cultivation of microalgae compared with photobioreactors. Although low-cost options like wastewater as nutrient source is studied to overcome the commercialization threshold for biodiesel production from microalgae, a cost analysis on the use of wastewater and other incremental increases in productivity has not been elucidated. We determined the ef...

BACKGROUND Culture collapse due to high temperatures can significantly impact the profitability of outdoor algal cultivation systems. The objective of this study was to model for the first time the impact of high temperatures on algal activity and viability. RESULTS Viability measurements on Dunaliella salina cultures were based on cytometry with two fluorescent markers (erythrosine and fluor...

Hydrogen recovery through solar-driven biomass conversion by photo-fermentative bacteria (PFB) has been regarded as a promising way for sustainable energy production. However, a considerable fraction of organic substrate was consumed for the growth of PFB as biocatalysts, furthermore, these PFB were continuously washed out from the photobioreactor in continuous operation because of their poor f...

*Correspondence: Jason C. Quinn, Department of Mechanical and Aerospace Engineering, Utah State University, 4130 Old Main Hill, Logan, UT 84322-4130, USA e-mail: [email protected] Processing of microalgal biomass to biofuels and other products requires the removal of the culture from a well-controlled growth system to a containment or preprocessing step at non-ideal growth conditions, such as...

Biofuels from algae are highly interesting as renewable energy sources to replace, at least partially, fossil fuels, but great research efforts are still needed to optimize growth parameters to develop competitive large-scale cultivation systems. One factor with a seminal influence on productivity is light availability. Light energy fully supports algal growth, but it leads to oxidative stress ...