当前位置: 首页 > 文章 > 发酵抑制物对树干毕赤酵母戊糖发酵的影响 南京林业大学学报(自然科学版) 2007,31 (6) 133-135
Position: Home > Articles > Effects of Restrainers on Fermentation of Pentose by Pichia stipitis Journal of Nanjing Forestry University(Natural Sciences Edition) 2007,31 (6) 133-135

发酵抑制物对树干毕赤酵母戊糖发酵的影响

作  者:
季更生;勇强;余世袁
单  位:
江苏科技大学生物与环境工程学院;南京林业大学化学工程学院
关键词:
木糖;发酵;抑制物;树干毕赤酵母
摘  要:
研究了常见发酵抑制物(甲酸、醋酸和乙醇)对树干毕赤酵母(Pichia stipitis)P2生长和发酵木糖的影响。结果表明:树干毕赤酵母P2具有良好的抗发酵抑制物能力。当发酵液中含有4.0 g/L的醋酸时,树干毕赤酵母P2生长和发酵木糖情况良好;当发酵液中含有5.0 g/L的甲酸时,树干毕赤酵母P2对木糖的利用率降低,但对酵母生长的影响并不明显;另外,树干毕赤酵母P2耐受乙醇的浓度约为40.0 g/L。
译  名:
Effects of Restrainers on Fermentation of Pentose by Pichia stipitis
作  者:
JI Geng-sheng1,2,YONG Qiang2,YU Shi-yuan2*(1.College of Biological and Environmental Engineering Jiangsu University of Science and Technology,Zhenjiang 212018,China;2.College of Chemical Engineering Nanjing Forestry University,Nanjing 210037,China)
关键词:
Xylose;Fermentation;Restrainer;Pichia stipitis
摘  要:
Effects of fermentation restrainers such as formic acid,acetic acid and ethanol on xylose fermentation by Pichia stipitis P2 were discussed.The growth and xylose fermentation were normal when 4.0 g/L acetic acid was added to culture medium.When 5.0 g/L formal acid was added to culture medium,the ratio of xylose fermentation decreased and the growth of yeast was normal.The yeast could sustain and ferment xylose when 40.0 g/L ethanol was added.

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