Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Improving the yield from fermentative hydrogen production.

Jeremy T Kraemer1, David M Bagley

  • 1Department of Civil Engineering, University of Toronto, 35 St. George Street, Toronto, ON, Canada, M5S 1A4. jeremy.kraemer@utoronto.ca

Biotechnology Letters
|February 7, 2007
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

A novel and high-performance double Z-scheme photocatalyst ZnO-SnO<sub>2</sub>-Zn<sub>2</sub>SnO<sub>4</sub> for effective removal of the biological toxicity of antibiotics.

Journal of hazardous materials·2020
Same author

Rejection of pharmaceutically-based N-nitrosodimethylamine precursors using nanofiltration.

Water research·2016
Same author

Influence of naturally occurring dissolved organic matter, colloids, and cations on nanofiltration of pharmaceutically active and endocrine disrupting compounds.

Chemosphere·2014
Same author

A practitioner's perspective on the application and research needs of membrane bioreactors for municipal wastewater treatment.

Bioresource technology·2012
Same author

Recent advances in membrane technologies for biorefining and bioenergy production.

Biotechnology advances·2012
Same author

Life cycle evaluation of emerging lignocellulosic ethanol conversion technologies.

Bioresource technology·2009
Same journal

CitM mediates hydroxycitrate (HCA) uptake: insights from heterologous expression in Escherichia coli, Bacillus subtilis mutant analysis and membrane topology prediction.

Biotechnology letters·2026
Same journal

Foliar and root absorption of LDH nanosheets loaded with dsRNAs efficiently silenced the expression of whitefly Bemisia tabaci Laccase 1 and Vitellogenin Receptor genes for their effective control.

Biotechnology letters·2026
Same journal

Morfo-anatomical insights into the germination and protocorm growth of the endangered Vanilla lindmaniana (Orchidaceae).

Biotechnology letters·2026
Same journal

Biosynthetic glycosylation as a critical structural determinant of antifungal activity in venturicidin A.

Biotechnology letters·2026
Same journal

Scaling up biomass production of Vishniacozyma victoriae and semi-commercial testing for post-harvest control of pome fruit disease.

Biotechnology letters·2026
Same journal

Efficient production of L-asparaginase using recombinant Pichia pastoris and strategy to eliminate glutaminase activity.

Biotechnology letters·2026
See all related articles

Maximizing hydrogen (H2) yields from fermentation involves optimizing conditions like inoculum treatment and dissolved gas removal. While some methods show promise, further research is needed to understand the underlying mechanisms for improved H2 production.

Area of Science:

  • Biotechnology
  • Environmental Science
  • Chemical Engineering

Background:

  • Fermentative hydrogen production is a key area in renewable energy research.
  • Optimizing hydrogen (H2) yields is crucial for the economic viability of bioprocesses.
  • Current methods like heat treatment have limitations in maximizing H2 yields and eliminating undesirable microbes.

Purpose of the Study:

  • To evaluate various strategies for enhancing hydrogen (H2) yields in fermentative production.
  • To investigate the effectiveness of inoculum treatments, dissolved gas removal, and organic loading rates.
  • To identify the underlying reasons for observed improvements in H2 yields.

Main Methods:

  • Comparison of different inoculum pre-treatments (heat, chemical, operational controls).

Related Experiment Videos

  • Assessment of gas sparging techniques and their impact on H2 yields.
  • Analysis of the effect of varying organic loading rates (OLR) on hydrogen production.

    • Main Results:

    • Heat treatment is less effective than other pre-treatments and does not eliminate all target microbes.
    • Gas sparging increases H2 yields, but the optimal rate and mechanism remain unclear.
    • The effect of organic loading rate (OLR) on H2 yield is contradictory across studies.

    Conclusions:

    • Operational controls (low pH, short solids retention time) can be viable alternatives to heat treatment.
    • Further investigation into dissolved gas removal and OLR effects is necessary for yield improvement.
    • Understanding the mechanisms behind enhanced H2 production is key to optimizing fermentative processes.