원문정보
초록
영어
Algal biotechnology is drawing increasing interest due to its potential as a source of valuable pharmaceuticals, pigments, carbohydrates, and other fine chemicals. Its application has been extended to the areas of wastewater treatment and agriculture. Futhermore, recent development in various algal biotechnology found algal mass culture could be a useful solution in treatment of wastewater, fixation of carbon dioxide and production of biofuel. Green house gases such as CO2 in the atmosphere became a serious problem for the whole mankind. The signs of global warming have boosted many researches on sequestration and removal of CO2. One of the possible solutions is a biological CO2 fixation using the photosynthesis of microalgae. However, the limitation of large scale cultivation and posttreatment of algal biomass hampers wide-spread use of microalgae for CO2 reduction. Microalgae commonly double their biomass within 24 h and some even can double as short as 3.5 h at optimal condition. Oil content in microalgae can exceed 70% by weight of dry biomass biomass productivity in photobioreactors. We have tested the possibility of applying microalgae for biological CO2 sequestration. Some microalgal species such as Botryococcus braunii and Chlorella emersonii appear to be attractive solution for CO2
sequestration. Statistical optimization of culture conditions and engineering optimization of
photobioreactors will be reported.