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Effect of Nitrogen Source on Ethanol Production from Weeds by a Simultaneous Saccharification and Fermentation Process |
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| รหัสดีโอไอ | |
| Creator | 1. Sasi Mongkolchaiarunya 2. Pilanee Vaithanomsat 3. Sawitri Chuntranuluck |
| Title | Effect of Nitrogen Source on Ethanol Production from Weeds by a Simultaneous Saccharification and Fermentation Process |
| Publisher | Research and Technology Transfer Affairs Division |
| Publication Year | 2559 |
| Journal Title | KKU Research Journal |
| Journal Vol. | 21 |
| Journal No. | 22 (Supplement) |
| Page no. | 210-212 |
| Keyword | Ethanol,Small-flowered umbrella sedge,Cattail,SSF |
| ISSN | 0859-3957 |
| Abstract | The effect of nitrogen source on ethanol production from 2 weeds, small-flowered umbrella sedge (Cyperus difformis) and cattail (Typha angustifolia), was studied. It was performed through a simultaneous saccharification and fermentation (SSF) process using the ethanol-producing yeast Saccharomyces cerevisiae TISTR5339. Both lignocellulosic materials were pretreated by steam explosion at 198oC for 5 minutes then steam exploded pulp was hydrolyzed with Cellic CTec2 (25 FPU/g) to obtain glucose. Different nitrogen sources; ammonium nitrate, ammonium chloride, ammonium sulfate, urea and peptone,were varied under a control fermentation condition. The result showed that the optimal nitrogen source for ethanol production from small-flowered umbrella sedge was peptone with ethanol yield 71.5% and ethanol productivity 0.27 gl-1h-1. Ammonium nitrate was found as an optimal nitrogen source for ethanol production from cattail with ethanol yield 39.6% and ethanol productivity 0.11 gl-1h-1. |
