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Objective & Scope
1. Characterization of biological Astaxanthin production mechanism 2. Optimization of biological Astaxanthin production 3. Development of bioreactor for Astaxanthin production Main Contents Carbon dioxide is considered as a major greenhouse gas causing the global warming problem. Biological CO2 fixation (BCF) is thought to be an environmentally friendly, energy-efficient process to remove CO2 using microalgal photosynthesis. Up to now, microalgal carbon dioxide fication combined with value-added chemical production has rarely been tried. Microalgal Haematococcus pluvialis have been received a great attention due to the accumulation of high level of Astaxanthin(up to 4%) which is a high-value carotenoid (US $2500/Kg) and of which major market is a pigmentation source in aquaculture, and a natural colorant in food industry. The purpose of this research is to fix carbon dioxide and simultaneously to produce astaxanthin using high-density dulture of H.pluvialis. A concentric tube air-lift photobioreactor was designed and constructed, combining the advantages of an air-lift bioreactor and an internal radiation system. Related Projects Title : Technology development for fixation and recycling of carbon dioxide using microalgal cultivation Period : 20010101-20020630 Support : POSCO References 1) The fixation of carbon dioxide and the production of Astaxanthin using microalgae Haematococcus pluvialis cultivation Yoon-e Choi, Thesis of Master (2002), POSTECH, KOREA 2) Evaluation of factors promoting the astaxanthin production by a unicellular green alga, Haematococcus pluvialis, with fractional factorial design Y.E. Choi, Y.S. Yun, and J.M. Park, Biotechnol. Prog., 18(6), 1170 (2002) |
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