JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2007, Vol. 31 ›› Issue (06): 133-135.doi: 10.3969/j.jssn.1000-2006.2007.06.032

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Effects of Restrainers on Fermentation of Pentose by Pichia stipitis

JI Geng-sheng1,2, YONG Qiang2, YU Shi-yuan2*   

  1. 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
  • Online:2007-12-18 Published:2007-12-18

Abstract: 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 4.0g/L acetic acid was added to culture medium. When 5.0g/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 40.0g/L ethanol was added.

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