| Budget Amount *help |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2015: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2014: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
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| Outline of Final Research Achievements |
Yellow substance was extracted with acetone from Ruminiclostridium thermocellum cells anaerobically grown on microcrystalline cellulose (Funacel) as the carbon source, purified, and expected to be a carotenoid-like compound by structural analysis. Yellow substance was also extracted from Ruminiclostridium josui cells with 1-propanol but not acetone. R. thermocellum yellow substance-adsorbed cellulose was efficiently hydrolyzed by not only R. thermocellum cellulosome but also R. josui cellulosome. On the other hand, R. josui yellow substance-adsorbed cellulose was efficiently hydrolyzed by R. josui cellulosome but not R. thermocellum cellulosome. These results suggest that the mechanisms by which cellulose degradability is enhanced are different and dependent on the origins of yellow substances.
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