The Ethanol Tolerance of <Emphasis Type="Italic">Pachysolen tannophilus</Emphasis> in Fermentation on Xylose |
| |
Authors: | Lei Zhao Jianliang Yu Xu Zhang Tianwei Tan |
| |
Institution: | (1) Beijing Key Lab of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China; |
| |
Abstract: | The influence of ethanol on fermentation by Pachysolen tannophilus was studied. When xylose utilization rate was 80%, ethanol concentration began to decline. Fermentation of P. tannophilus was affected by ethanol addition in the beginning of fermentation; average xylose consumption rate was 0.065 g·l−1·h−1, and maximum specific growth rate was 0.07 h−1 at 28 g·l−1 ethanol, comparing with the average xylose consumption rate of 0.38 g·l−1·h−1 and maximum specific growth rate of 0.14 h−1 in fermentation with no ethanol addition; P. tannophilus stopped growth at 40 g·l−1 ethanol. When the initial ethanol concentration was 30 g·l−1, the addition of glucose in xylose media made the growth of P. tannophilus better, and the most favorable glucose concentration was 15 g·l−1 with the highest biomass of 1.51 g·l−1 as compared with that of 0.95 g·l−1 in pure xylose media. |
| |
Keywords: | |
本文献已被 PubMed SpringerLink 等数据库收录! |
|