P107 微細藻類のカスケード利用に関する基礎的研究(ポスター発表)

概要

論文の詳細を見る
Microalgae can be regarded as potential biomass resources because of their rapid growth and simple constituents. For utilization the microalgae as biomass, it must be clarified what are controlling the growth rate and the composition of constituent component in microalgae cultivations. In addition, effective utilization may require the cascade processes consisting of separation of valuable components from microalgae and conversion of residuals to useful components. This study was conducted by using Chlorocuccum littorale as a microalga. The experiments were conducted to firstly study the effects of culture conditions (temperature, gas composition and irradiance) on both the cell growth rate and carotenoid productivity and to secondly apply the supercritical CO_2(sc-CO_2) extraction to caroteniods separation from freeze-dried microalgae. The results revealed that the cell growth rate was enhanced by elimination of O_2 from aeration gas and decrease of brightness of light, and that the sc-CO_2 extraction exhibited lower carotenoid selectivity and higher extraction yield with adding ethanol as an entrainer.
一般社団法人日本エネルギー学会の論文
2007-01-16