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 Concept Videos

Reduction of Alkenes: Catalytic Hydrogenation02:13

Reduction of Alkenes: Catalytic Hydrogenation

14.5K
Alkenes undergo reduction by the addition of molecular hydrogen to give alkanes. Because the process generally occurs in the presence of a transition-metal catalyst, the reaction is called catalytic hydrogenation.
Metals like palladium, platinum, and nickel are commonly used in their solid forms — fine powder on an inert surface. As these catalysts remain insoluble in the reaction mixture, they are referred to as heterogeneous catalysts.
The hydrogenation process takes place on the...
14.5K
Overview of Archaea01:29

Overview of Archaea

1.2K
Archaea, named after the Archaean eon, represent a unique domain of life, distinct from bacteria and eukaryotes, with remarkable traits. Their cellular and molecular features, ecological adaptability, and industrial relevance highlight their importance in understanding life processes and leveraging biotechnology.Cellular and Molecular CharacteristicsA defining feature of archaea is their unique membrane composition. Archaeal membranes contain ether-linked isoprenoid lipids, which confer...
1.2K
Reduction of Alkenes: Asymmetric Catalytic Hydrogenation02:17

Reduction of Alkenes: Asymmetric Catalytic Hydrogenation

3.9K
Catalytic hydrogenation of alkenes is a transition-metal catalyzed reduction of the double bond using molecular hydrogen to give alkanes. The mode of hydrogen addition follows syn stereochemistry.
The metal catalyst used can be either heterogeneous or homogeneous. When hydrogenation of an alkene generates a chiral center, a pair of enantiomeric products is expected to form. However, an enantiomeric excess of one of the products can be facilitated using an enantioselective reaction or an...
3.9K
Environmental Applications of Microorganisms01:30

Environmental Applications of Microorganisms

1.3K
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
1.3K
Metabolism of Chemolithotrophs01:15

Metabolism of Chemolithotrophs

972
Chemolithotrophs are microorganisms that obtain energy by oxidizing inorganic molecules such as hydrogen gas (H₂), ammonia (NH₃), reduced sulfur compounds (H₂S, S²⁻), and ferrous iron (Fe²⁺). Unlike heterotrophic organisms that rely on organic carbon, chemolithotrophs transfer electrons from these inorganic donors to the electron transport chain (ETC), generating a proton motive force (PMF) that drives ATP synthesis through oxidative phosphorylation.
972
Hydroboration-Oxidation of Alkenes03:08

Hydroboration-Oxidation of Alkenes

11.7K
In addition to the oxymercuration–demercuration method, which converts the alkenes to alcohols with Markovnikov orientation, a complementary hydroboration-oxidation method yields the anti-Markovnikov product. The hydroboration reaction, discovered in 1959 by H.C. Brown, involves the addition of a B–H bond of borane to an alkene giving an organoborane intermediate. The oxidation of this intermediate with basic hydrogen peroxide forms an alcohol.
11.7K

You might also read

Related Articles

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

Sort by
Same author

Is the Current Screening Availability for Early Stages of Type 1 Diabetes in Germany Related to the Population-Based Frequency of Diabetic Ketoacidosis at Clinical Manifestation in Children and Adolescents.

Pediatric diabetes·2026
Same author

Enhancing methane yield from agricultural feedstocks including horse manure and residues: Ball mill pretreatment in full-scale biogas plant.

Bioresource technology·2025
Same author

Meningioma and Cerebral Spindle Cell Sarcoma as Two Different Metachronous Tumor Entities Secondary to Medulloblastoma Treatment in Childhood: Case Report and Review of the Literature.

Journal of neurological surgery. Part A, Central European neurosurgery·2025
Same author

Predicting anaerobic digestion stability in load-flexible operation using gas phase indicators and classification algorithms.

Bioresource technology·2025
Same author

Did smoking behavior change in adolescents and young adults with and without diabetes during the COVID-19 pandemic? A cohort study from the DPV registry.

BMC pediatrics·2025
Same author

Effects of additives on shifting phosphorus to solid phase during Solid-Liquid separation of digestate in full-scale biogas plant.

Bioresource technology·2024

Related Experiment Video

Updated: Feb 23, 2026

Visualizing Methane-Cycling Microbial Dynamics in Coastal Wetlands
07:26

Visualizing Methane-Cycling Microbial Dynamics in Coastal Wetlands

Published on: January 31, 2025

916

Biological hydrogen methanation - A review.

Bernhard Lecker1, Lukas Illi1, Andreas Lemmer1

  • 1University of Hohenheim, State Institute of Agricultural Engineering and Bioenergy, Garbenstraße 9, 70599 Stuttgart, Germany.

Bioresource Technology
|September 13, 2017
PubMed
Summary

Biological hydrogen methanation (BHM) efficiently converts surplus renewable energy into natural gas. This review analyzes BHM studies, focusing on overcoming limitations and enhancing bacterial conditions for optimized methane production.

Keywords:
BiogasCarbon dioxideEnergy storageMolecular hydrogenPower-to-Gas

More Related Videos

Author Spotlight: Designing Simple and Inexpensive Techniques to Grow Methane-Oxidizing Bacteria in the Laboratory
07:31

Author Spotlight: Designing Simple and Inexpensive Techniques to Grow Methane-Oxidizing Bacteria in the Laboratory

Published on: September 6, 2024

1.3K
Hydrogen Production and Utilization in a Membrane Reactor
10:00

Hydrogen Production and Utilization in a Membrane Reactor

Published on: March 10, 2023

3.3K

Related Experiment Videos

Last Updated: Feb 23, 2026

Visualizing Methane-Cycling Microbial Dynamics in Coastal Wetlands
07:26

Visualizing Methane-Cycling Microbial Dynamics in Coastal Wetlands

Published on: January 31, 2025

916
Author Spotlight: Designing Simple and Inexpensive Techniques to Grow Methane-Oxidizing Bacteria in the Laboratory
07:31

Author Spotlight: Designing Simple and Inexpensive Techniques to Grow Methane-Oxidizing Bacteria in the Laboratory

Published on: September 6, 2024

1.3K
Hydrogen Production and Utilization in a Membrane Reactor
10:00

Hydrogen Production and Utilization in a Membrane Reactor

Published on: March 10, 2023

3.3K

Area of Science:

  • Biotechnology
  • Renewable Energy Conversion
  • Environmental Engineering

Background:

  • Increasing surplus energy from fluctuating sources like wind and solar necessitates efficient storage solutions.
  • Biological hydrogen methanation (BHM) offers a promising pathway to convert renewable electricity into storable natural gas via electrolysis and the Sabatier reaction.
  • BHM addresses the need for sustainable energy carriers by transforming hydrogen into methane.

Purpose of the Study:

  • To provide a comprehensive overview and comparative analysis of existing studies on biological hydrogen methanation (BHM).
  • To identify and analyze key technical and biological parameters influencing BHM efficiency.
  • To explore strategies for overcoming physical limitations and optimizing environmental conditions for bacterial methanogenesis.

Main Methods:

  • Systematic review and comparative analysis of published research on BHM.
  • Evaluation of technical parameters including gas-liquid mass transfer and pH control.
  • Assessment of biological parameters related to bacterial biomass and environmental conditions.
  • Analysis of ex-situ methanation studies focusing on methane production and off-gas composition.

Main Results:

  • Identified key technical and biological parameters influencing BHM efficiency across numerous studies.
  • Highlighted physical limitations such as gas-liquid mass transfer and pH fluctuations that impact the fermentation process.
  • Demonstrated a clear correlation between methane production and methane concentration in the off-gas for ex-situ methanation.
  • Provided insights into enhancing environmental conditions for improved bacterial performance.

Conclusions:

  • BHM is a viable technology for renewable energy storage, converting electricity to natural gas.
  • Overcoming process limitations and optimizing bacterial environments are crucial for efficient BHM.
  • Further research into ex-situ methanation can enhance methane yield and process control.