| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
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| Outline of Final Research Achievements |
We conducted fundamental research on structure determination and functional understanding of novel biosurfactant. Tetrachlorethylene (PCE)-reducing activity was found in the filtrate of activated sludge which had been acclimatized to PCE for a long time. The PCE-reducing activity in the filtrate was thought to be an organic matter derived from living organisms . Since the degradation products from PCE treated with the filtrate could not be detected by various chromatographies, one of PCE-reducing substances in activated sludge was thought to be a biosurfactant-like substance which increases the solubility of PCE in water. Structural analyises with FT-IR, 1H-NMR, and MS by use of partially-purified biosurfactant-like substance indicated that the substance could be a polyoxypropyl ether-like compound.
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