Metabolic and energetic aspects of biohydrogen production of Clostridium tyrobutyricum: The effects of hydraulic retention time and peptone addition

Liang Ming Whang, Che An Lin, I. Chun Liu, Chao Wei Wu, Hai Hsuan Cheng

研究成果: Article同行評審

21 引文 斯高帕斯(Scopus)

摘要

This study evaluates the microbial metabolism and energy demand in fermentative biohydrogen production using Clostridium tyrobutyricum FYa102 at different hydraulic retention times (HRT) over a period of 1-18h. The hydrogen yield shows a positive correlation with the butyrate yield, the B/A ratio, and the Y H2/2(Y HAc+Y HBu) ratio, but a negative correlation with the lactate yield. A decrease in HRT, which is accompanied by an increased biomass growth, tends to decrease the B/A ratio, due presumably to a higher energy demand for microbial growth. The production of lactate at a low HRT, however, may involve an unfavorable change in e - equiv distribution to result in a reduced hydrogen production. Finally, the relatively high hydrogen yields observed in the bioreactor with the peptone addition may be ascribed to the utilization of peptone as an additional energy and/or amino-acid source, thus reducing the glucose demand for biomass growth during the hydrogen production process.

原文English
頁(從 - 到)8378-8383
頁數6
期刊Bioresource technology
102
發行號18
DOIs
出版狀態Published - 2011 九月

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

指紋 深入研究「Metabolic and energetic aspects of biohydrogen production of Clostridium tyrobutyricum: The effects of hydraulic retention time and peptone addition」主題。共同形成了獨特的指紋。

引用此