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Anondho Wijanarko Dianursanti Misri Gozan Sang Made Krisna Andika Paramita Widiastuti Heri Hermansyah Arief Budi Witarto Kazuhiro Asami Roekmijati Widaningroem Soemantojo Kazuhisa Ohtaguchi Song Seung Koo 《Biotechnology and Bioprocess Engineering》2006,11(6):484-488
Alteration of illumination with optimum carbon dioxide fixation-based curve in this research successfully enhanced the CO2-fixation (qco2) capability ofChlorella vulgaris Buitenzorg cultivated in a bubble column photo bioreactor. The level of CO2 fixation was up to 1.91 times that observed from cultivation with intensification of illumination on an optimum growth-based curve. During 144 h of cultivation, alteration of light intensity on an optimum CO2-fixation-based curve produced a qCO2 of 6.68 h?1. Increases in light intensity based on a curve of optimum CO2-fixation produced a final cell concentration of about 5.78 g/L. Both cultivation methods were carried out under ambient pressure at a temperature of 29°C with a superficial gas velocity of 2.4 m/h (UG). Cells were grown on Beneck medium in a 1.0 L Bubble Column Photo bioreactor illuminated by aPhillips Halogen Lamp (20 W/12 V/50 Hz). The inlet gas had a carbon dioxide content of 10%. 相似文献
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Anondho Wijanarko Dianursanti Antonius Yudi Sendjaya Heri Hermansyah Arief Budi Witarto Misri Gozan Bondan Tiara Sofyan Kazuhiro Asami Kazuhisa Ohtaguchi Roekmijati Widaningroem Soemantojo Seung Koo Song 《Biotechnology and Bioprocess Engineering》2008,13(4):476-482
Microalgae perform oxygenic photosynthesis and are capable of taking up a large amount of CO2, using an inducible CO2 concentrating mechanism (CCM), and fixing CO2 into higher compounds. These characteristics make the microalgae potentially useful for removal and utilization of CO2 emitted from industrial plants and, generally, the usage of photosynthetic microorganisms has increased and significantly
improved as a solution for CO2 emissions. In this light and based on previous research using Anabaena cylindrica IAM M1 and Spirulina platensis IAM M 135, enhancement was sought for CO2 fixation and biomass production by Chlorella vulgaris Buitenzorg by increasing the photon flux density concurrent with increases in culture biomass during the cellular growth
phase and was compared to cultures of Chlorella grown at optimal constant illumination, with all cultures grown using Bennick basal medium, 29°C, and a flow of 1.0 atm.
10% CO2 enriched air delivered to three in serial photobioreactors of 0.200 dm3 capacity each. The results showed that increasing illumination during culture increased biomass production of Chlorella by ∼60% as well as increased CO2 fixation ability by ∼7.0%. It was also demonstrated that the non-competitive inhibition of [HCO3
−] as a carbon source significantly affected the cultivation in both the increasing and constant photon flux density regimes. 相似文献
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