Carbon dioxide fixation and α-linolenic acid production by the hot-spring alga Cyanidium caldarium
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- Akimoto Masamichi
- Department of Chemical Engineering, Tokyo Institute of Technology
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- Ohara Tetsuya
- Department of Chemical Engineering, Tokyo Institute of Technology
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- Ohtaguchi Kazuhisa
- Department of Chemical Engineering, Tokyo Institute of Technology
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- Koide Kozo
- Department of Chemical Engineering, Tokyo Institute of Technology
書誌事項
- タイトル別名
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- Carbon dioxide fixation and .ALPHA.-linolenic acid production by the hot-spring alga cyanidium caldarium.
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Focusing on CO2 fixation and α-linolenic acid (ALA) production, photoautotrophic cultivation of the hot-spring alga Cyanidium caldarium was investigated using Allen’s medium under a 5% CO2-enriched atmosphere. Although the growth rate was maximum at ca. 40°C, the optimum cultivation conditions (temperature, H+ concentration in the medium and light intensity) for ALA production were found to be 30°C, pH 2.0–4.0 and ca. 10,000 lux respectively. Simulation of a chemostat cultivation at these optimum conditions showed that the rates of CO2 fixation and of ALA production could reach 0.75 kg- CO2/(kg-cells·d) and 5.44 g-ALA/(kg-cells·d), respectively, in the exponential phase. This rate of CO2 fixation corresponded to 0.030 kg-CO2/(m3·h) at a cell concentration of 0.96 kg/m3. This activity of C. caldarium for CO2 fixation was comparable to that of blue-green algae and was 10 to 100 times greater than that of green plants. Thus, C. caldarium was shown to be useful for the fixation of CO2.
収録刊行物
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 27 (3), 329-333, 1994
公益社団法人 化学工学会
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詳細情報 詳細情報について
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- CRID
- 1390282679542927232
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- NII論文ID
- 10006959746
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- NII書誌ID
- AA00709658
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- COI
- 1:CAS:528:DyaK2cXkvVWjt7o%3D
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- ISSN
- 18811299
- 00219592
- http://id.crossref.org/issn/00219592
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可