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Experimental & Empirical Correlations For The Determination Of The Overall Volumetric Mass Transfer Coefficients Of Carbon Dioxide In Stirred Tank Bioreactors, Syeda Anam Kazim
Experimental & Empirical Correlations For The Determination Of The Overall Volumetric Mass Transfer Coefficients Of Carbon Dioxide In Stirred Tank Bioreactors, Syeda Anam Kazim
Electronic Thesis and Dissertation Repository
One of the most important parameters to cultivate microalgae is carbon dioxide absorption by microalgae. Therefore, it is necessary to determine the overall volumetric mass transfer coefficient (KLa) of carbon dioxide to quantify CO2 transfer from the gaseous to the liquid phase. Until now, finding KLa of CO2 for microalgae cultivation has been a challenge as there is not much information available about it in the literature and most of the time the CO2 transfer to microalgae is approximated. In this study, correlations to directly calculate KLa of CO2 in …
Biomass And Lipid Production From Heterotrophic And Mixotrophic Fed-Batch Cultivations Of Microalgae Chlorella Protothecoides Using Glycerol, Shwetha Sivakaminathan
Biomass And Lipid Production From Heterotrophic And Mixotrophic Fed-Batch Cultivations Of Microalgae Chlorella Protothecoides Using Glycerol, Shwetha Sivakaminathan
All Theses
Chlorella protothecoides is a microalga that can grow both photo-autotrophically and/or heterotrophically under different culture and environmental conditions. In this study both the heterotrophic growth and mixotrophic growth have been conducted. The heterotrophic experiments were conducted completely in the dark while the mixotrophic experiments had the dark cycles with periodic light exposure. The aim of the study was to independently understand the effect of each mode on biomass and lipid yields.
For the heterotrophic experiments, glycerol was used as an external organic carbon source while yeast extract was used as the nitrogen source. The carbon and nitrogen source were added …
The Use Of A Mixed Chlorella Cyanobacteria Culture As A Protein Source For Aquaculture, Marjan Sadat Mohtashamian
The Use Of A Mixed Chlorella Cyanobacteria Culture As A Protein Source For Aquaculture, Marjan Sadat Mohtashamian
LSU Master's Theses
The increase in the global demand for fish feed in the last decades has resulted in the over exploitation of natural resources to produce more fishmeal supplies for aquaculture industry. The supply issues and high prices of fishmeal products have raised the incentives to seek for suitable alternatives to replace fishmeal protein. As a by-product of biofuel production process, residual microalgal biomass may be a low cost feed ingredient to the aquaculture diet. The potential of the use of a post lipid extraction Chlorella vulgaris/Leptolyngbya sp. Co-Culture (Louisiana co-culture) as a protein source in aquaculture feeds could help offset fishmeal. …
Growth Rate And Productivity Of A Louisiana Native Microalgae/Cyanobacteria Co-Culture: Feasibility For Use In Industrial Biotechnology Applications, Athens Gomes Silaban
Growth Rate And Productivity Of A Louisiana Native Microalgae/Cyanobacteria Co-Culture: Feasibility For Use In Industrial Biotechnology Applications, Athens Gomes Silaban
LSU Master's Theses
Interest in biofuels research has increased in the era of uncertainty of the current fossil fuel sustainability and global climate concerns. Microalgae offer advantages over terrestrial plants as a potential source of biomass-based fuel. In this study, a Louisiana native microalgae/cyanobacteria (Chlorella vulgaris/Leptolyngbya sp.) co-culture was examined to provide foundational information of its growth conditions. Batch studies were conducted to determine optimum nitrogen and irradiance level that yields maximum co-culture biomass growth and productivity under aerated and non-aerated conditions. The optimum nitrogen level was 2.94 mM N and the optimum initial scalar irradiance range was between 400 – 800 µmol …