Gema Lorena Lopez Lizarraga - Academia.edu (original) (raw)
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INDIAN AGRICULTURAL RESEARCH INSTITUTE, NEW DELHI, INDIA
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Papers by Gema Lorena Lopez Lizarraga
8 Microalgae have great biotechnological potential for production of substances 9 through photosy... more 8 Microalgae have great biotechnological potential for production of substances 9 through photosynthesis. Light capture process and electron transportation imply 10 energy losses due to reflection, fluorescence emission, and energy dissipation as heat, 11 giving a maximum theoretical value of 8‐9% for microalgae energy capture efficien‐ 12 cy and conversion to biomass. For development of full potential of microalgae the 13 knowledge of the light capture process is required. High yields can only be obtained 14 linking photobioreactor design with biological process taking place inside. In massive 15 microalgae cultures, light gradients are generated and this depends on the biomass 16 concentration, cellular types, cells sizes, and pigment content, and also on geome‐ 17 try, hydrodynamic, and light conditions inside the photobioreactor. In the present 18 chapter we explain the relationship between light energy capture process and 19 photobioreactor design and operation conditions, like turbulence, gas exchange, and 20 nutrient requirements. Finally, the productivity and costs are discussed, and the 21 parameters that determine the economic viability of any microalgae culture. 22
8 Microalgae have great biotechnological potential for production of substances 9 through photosy... more 8 Microalgae have great biotechnological potential for production of substances 9 through photosynthesis. Light capture process and electron transportation imply 10 energy losses due to reflection, fluorescence emission, and energy dissipation as heat, 11 giving a maximum theoretical value of 8‐9% for microalgae energy capture efficien‐ 12 cy and conversion to biomass. For development of full potential of microalgae the 13 knowledge of the light capture process is required. High yields can only be obtained 14 linking photobioreactor design with biological process taking place inside. In massive 15 microalgae cultures, light gradients are generated and this depends on the biomass 16 concentration, cellular types, cells sizes, and pigment content, and also on geome‐ 17 try, hydrodynamic, and light conditions inside the photobioreactor. In the present 18 chapter we explain the relationship between light energy capture process and 19 photobioreactor design and operation conditions, like turbulence, gas exchange, and 20 nutrient requirements. Finally, the productivity and costs are discussed, and the 21 parameters that determine the economic viability of any microalgae culture. 22