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Stimulation of ferrihydrite nanorods on fermentative hydrogen production by Clostridium pasteurianum.
Zhang, Yuechao; Xiao, Leilei; Wang, Shuning; Liu, Fanghua.
Afiliação
  • Zhang Y; Key Laboratory of Coastal Biology and Biological Resources Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, PR
  • Xiao L; Key Laboratory of Coastal Biology and Biological Resources Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; Center for Ocean Mega-Science, Chinese Academy of Sciences, 7, Nanhai Road, Qingdao 266071, PR China.
  • Wang S; State Key Laboratory of Microbial Technology, Microbial Technology Institute, Shandong University, Qingdao 266237, PR China.
  • Liu F; Key Laboratory of Coastal Biology and Biological Resources Utilization, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai 264003, PR China; Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, PR
Bioresour Technol ; 283: 308-315, 2019 Jul.
Article em En | MEDLINE | ID: mdl-30921584
Conversion of organic matter to biohydrogen possesses promising application potential. In this study, low-cost ferrihydrite nanorods were used to enhance hydrogen production by Clostridium pasteurianum. The maximum cumulative hydrogen production and the hydrogen yield were 1.03 mmol and 3.55 mol H2/mol glucose, respectively, which were 68.9% and 15.6% higher than those of the batch groups without ferrihydrite addition. Moreover, in comparison with magnetite and hematite nanoparticles, ferrihydrite presented the best stimulation for hydrogen evolution. The enhancement mechanisms were explored based on metabolic distribution, gene expression, enzymatic activity, and metabolite determination, such as Fe(II) concentration and pH value. The potential stimulation mechanisms are summarized as follows: ferrihydrite improves glucose conversion efficiency and promotes cell growth; ferrihydrite elevates the transcripts and activity of hydrogenase; and ferrihydrite reduction via its buffer function could ease acidification. This study demonstrates that ferrihydrite addition is an effective and green strategy to enhance fermentative hydrogen production.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Compostos Férricos / Nanotubos / Fermentação / Hidrogênio Idioma: En Revista: Bioresour Technol Assunto da revista: ENGENHARIA BIOMEDICA Ano de publicação: 2019 Tipo de documento: Article País de publicação: Reino Unido
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Compostos Férricos / Nanotubos / Fermentação / Hidrogênio Idioma: En Revista: Bioresour Technol Assunto da revista: ENGENHARIA BIOMEDICA Ano de publicação: 2019 Tipo de documento: Article País de publicação: Reino Unido