A carbon dioxide fixation system using microalgae on a filter membrane

在滤膜上使用微藻的二氧化碳固定系统

• 批准号: 07554068
• 负责人: TSUZUKI Mikio
• 金额: $ 0.7万
• 依托单位: Tokyo University of Pharmacy and Life Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07554068/
• 关键词: carbon dioxide; microalgae; environment; chlorella; atomosphere

There must be several problems to develop a CO_2 fixation system with microalgae against the increase in atmospheric CO_2 concentration : Water supply is one of the problems in some area such as a deseart where the large system can be placed. Some microalge such as Chlorella show a high photosynthetic activity even on a filter membrane. The photosynthetic characteristics was essentially the same as those obtained with the cells in liquid. The maximum rate of CO_2 fixation on the membrane reached 1.2g CO_2・h^<-1> per sequare meter of the exposed area. The ratio of the increase in dry weight over the fixed amount of CO_2 was 0.55 to 0.70 at various CO_2 concentrations. The value can be comparable to 0.68 which is obtained as the assumption of starch as a final product of CO_2 fixation. The photosynthetic activity decreased gradually to the half for 5 days. If the cells was kept wet by an occasional spray, the activity continued for more than 3 weeks. Most of the components which increased during the CO_2 fixation was starch and protein. When nitorogen content was lowered in the culture medium, the increase in protein was suppressed.

针对大气CO_2浓度的增加，开发微藻固定CO_2系统必然存在以下问题：供水是某些地区（例如可以放置大型系统的地区）的问题之一。一些微藻如小球藻即使在滤膜上也显示出高光合活性。光合特性基本上与液体中的细胞相同。膜的最大固定CO_2速率可达1.2gCO_2·h ~（-1）<-1>/平方米暴露面积。在不同CO_2浓度下，干重增加量与固定CO_2量的比值为0.55 ~ 0.70。该值可与假设淀粉为CO_2固定的最终产物而得到的0.68相比较。光合活性逐渐下降，至第5天的一半。如果细胞通过偶尔喷洒保持湿润，则活性持续超过3周。在CO_2固定过程中增加的组分主要是淀粉和蛋白质。当培养基中氮含量降低时，蛋白质的增加受到抑制。

项目成果

M. Tsutsumi, K. Kawachi, M. Kaneko, and M. Tsuzuki: "CO_2 fixation system by Chlorella on a filtermembrane." In Photosynthesis: from Light to Biosphere. Edited by P. Mathis. Kluwer Acad. Publ.vol. V. 881-884 (1995)

M. Tsutsumi、K. Kawachi、M. Kaneko 和 M. Tsuzuki：“小球藻在过滤膜上的 CO_2 固定系统。”

M.Tsutsumi,K.Kawach,M.Kaneko and M.Tsuzuki: "CO_2 fixation system by Chlorella on a filter membrane" In Photosynthesis : from Light to Biosphere.Edited by P.Mathis Kluaer Academy Publishers. V. 881-884 (1995)

M.Tsutsumi、K.Kawach、M.Kaneko 和 M.Tsuzuki：“滤膜上小球藻的 CO_2 固定系统”，《光合作用：从光到生物圈》。由 P.Mathis Kluaer Academy 出版社编辑。

Sato, N.et al.: "Contribution of lipids to PS II." In Photosynthesis : from Light to Biosphere., Edited by P.Mathis.Kluwer Academic Publishiers, Dordrecht, The Netherlands. Vol.III.989-992 (1995)

Sato, N.et al.：“脂质对 PS II 的贡献。”

Tsutsumi, M.et al.: "CO_2 fixation system by Chlorella on a filter membrane." In Photosynthesis : from Light to Biosphere., Edited by P.Mathis.Kluwer Academic Publishiers, Dordrecht, The Netherlands. Vol.V.881-884 (1995)

Tsutsumi, M.et al.：“小球藻在滤膜上的 CO_2 固定系统。”

N.Sato,K.Sonoike,M.Tsuzuki and A.Kawaguchi: "Contribution of lipids to PSII" In Photo syntesis : from Light to Biosphere.Edited by P.Mathis.Kuaer Acadedy Phublishers. III. 989-992 (1995)

N.Sato、K.Sonoike、M.Tsuzuki 和 A.Kawaguchi：《光合成：从光到生物圈》中的“脂质对 PSII 的贡献”。由 P.Mathis.Kuaer Acadedy Phublishers 编辑。