| 摘要 |
Provided herein are methods for producing ethanol using yeast to ferment pretreated solid lignocellulosic materials such as pretreated solid lignocellulosic materials obtained from softwoods like pine. The pretreated solid lignocellulosic material is present at a concentration of at least 12% solids, and at least 30 grams ethanol per liter, preferably at least 40 grams ethanol per liter, are produced within 48 hours. In some aspects, the pretreated solid lignocellulosic material is not detoxified prior to the fermentation. Also provided herein are yeast that ferment a composition that includes pretreated solid lignocellulosic material at a concentration of at least 12% solids to yield at least 30 grams ethanol per liter, preferably at least 40 grams ethanol per liter, in 48 hours. Further provided herein are methods for acclimatizing yeast.
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