Biological conversion of carbon monoxide to ethanol: Effect of pH, gas pressure, reducing agent and yeast extract [PDF]
A two-level full factorial design was carried out in order to investigate the effect of four factors on the bioconversion of carbon monoxide to ethanol and acetic acid by Clostridium autoethanogenum: initial pH (4.75–5.75), initial total pressure (0.8–1 ...
Kennes, Christian +2 more
core +2 more sources
H<sub>2</sub> Consumption by Various Acetogenic Bacteria Follows First-Order Kinetics up to H<sub>2</sub> Saturation. [PDF]
Muñoz‐Duarte and coworkers found that H2 consumption by various acetogenic bacteria followed first‐order kinetics, i.e. the H2 consumption rate increased linearly with the dissolved H2 concentration up to H2 saturation. Biomass specific first‐order rate coefficients of eight different strains varied up to six‐fold, with the highest value for ...
Muñoz-Duarte L +5 more
europepmc +2 more sources
Redox dependent metabolic shift in Clostridium autoethanogenum by extracellular electron supply [PDF]
Background: Microbial electrosynthesis is a novel approach that aims at shifting the cellular metabolism towards electron-dense target products by extracellular electron supply.
Bernhardt, Paul V +4 more
core +3 more sources
Comparison of Conventional and Novel Pre-treatment Methods for Bioethanol Production from Fruit and Vegetable Wastes [PDF]
In this study, novel and conventional techniques for the production of bioethanol from fruit and vegetable wastes (FVWs) by yeast and bacterial fermentation were investigated experimentally.
T. Keskin
doaj +1 more source
Ethanol and Acetic Acid Production from Carbon Monoxide in a Clostridium Strain in Batch and Continuous Gas-Fed Bioreactors [PDF]
The effect of different sources of nitrogen as well as their concentrations on the bioconversion of carbon monoxide to metabolic products such as acetic acid and ethanol by Clostridium autoethanogenum was studied.
Kennes, Christian +2 more
core +3 more sources
Evaluation of some renewable energy technologies [PDF]
Purpose. The study aims to outline and compare various renewable energy alternatives in view of the global warming crisis and depletion of fossil fuels which cause emissions of carbon dioxide.
Basu, R
core +2 more sources
Effect of ethanol and butanol on autotrophic growth of model homoacetogens [PDF]
Research efforts aimed at increasing ethanol and butanol productivity from syngas are currently gaining attention. For most model carboxydotrophic bacteria, production rates, yields and maximum product titres have been studied in detail, but little is ...
Bañeras, Lluís +3 more
core +1 more source
Firstly, 2,3-butanediol (2,3-BDO) is a chemical platform used in several applications. However, the pathogenic nature of its producers and the expensive feedstocks used limit its scale production.
Yuling Yang +7 more
doaj +1 more source
Prokaryotic evolution is driven by random mutations and horizontal gene transfer (HGT). HGT occurs via transformation, transduction, or conjugation. We have previously shown that in syntrophic cocultures of Clostridium acetobutylicum and Clostridium ...
Kamil Charubin +2 more
doaj +1 more source
Bioprocess development with Clostridium ljungdahlii based on metabolic modelling
Bacterial synthesis gas (syngas) fermentation offers a promising solution for the reduction of greenhouse gas emissions - the greatest challenge of today’s society. The substrate gas, which mainly consists of CO2, CO, and H2, represents an inexpensive feedstock originating from agricultural, industrial, and municipal wastes.
openaire +2 more sources

