2011 Fiscal Year Final Research Report
Development of Efficient Production System of Biosurfactants Utilizing Foam
| Project/Area Number |
21510101
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Environmental technology/Environmental materials
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| Research Institution | Niigata Institute of Technology |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
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| Keywords | バイオサーファクタント / 界面活性剤 / 低環境負荷型材料 / 発泡制御 / 泡沫分離 / 消泡翼 |
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| Research Abstract |
In the aerobic culture of Bacillus subtilis ATCC 21332 to produce a biosurfactant, foam control using a foam-breaking impeller fitted to a stirred-tank reactor succeeded. Production and enrichment of the biosurfactant were accomplished simultaneously in the stirred-tank reactor with the presence of the foam layer. The foam fractionation operation after the end of cultivation improved the recovery of biosurfactant up to 92.3%. The volume of treating liquid, which the biosurfactant was enriched, could be reduced. Therefore, this technique contributes to a lowering of running costs in separation and purification processes.
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