Results 71 to 80 of about 766 (130)

The effect of corn syrup and whey on the conversion process of CO to ethanol using Clostridium ljungdahlii

Chemosphere, 2020
CO is one of the toxic components of syngas, which is the major source of air pollution. Syngas fermentation technology has the ability to convert toxic gases into valuable biofuels, such as ethanol. Fermentative ethanol production is an important method that can be used to promote environmental protection.
Gunay, Bensu, Azbar, Nuri, Keskin, Tugba
openaire   +3 more sources

Reverse‐Engineered Gas‐Fermenting Acetogen Strains Recover Enhanced Phenotypes From Autotrophic Adaptive Laboratory Evolution

Microbial Biotechnology, Volume 18, Issue 8, August 2025.
We used reverse genetic engineering of the gas‐fermenting model‐acetogen Clostridium autoethanogenum to recover enhanced phenotypes from autotrophic adaptive laboratory evolution. Reverse‐engineered strains were characterised at systems level and bioinformatics suggest that the targeted genes may be involved in overlapping regulatory networks ...
Henri Ingelman, Kurshedaktar Majibullah Shaikh, Kaspar Valgepea   +2 more
wiley   +1 more source

Effects of Nitrate on Hydrogenogenic Carbon Monoxide Oxidation in Parageobacillus thermoglucosidasius

Environmental Microbiology Reports, Volume 17, Issue 3, June 2025.
Parageobacillus thermoglucosidasius hierarchically utilises nitrate respiration and hydrogenogenic carbon monoxide (CO) oxidation. Nitrate suppresses CO oxidation and promotes rapid cell growth through hydrogen‐dependent nitrate reduction. For this bacterium, CO serves as a supplemental energy source in environments lacking alternative electron ...
Yuka Adachi Katayama, Yoshinari Imaura, Masao Inoue, Shunsuke Okamoto, Yoshihiko Sako, Ryoma Kamikawa, Takashi Yoshida   +6 more
wiley   +1 more source

H2 Consumption by Various Acetogenic Bacteria Follows First‐Order Kinetics up to H2 Saturation

Biotechnology and Bioengineering, Volume 122, Issue 4, Page 804-816, April 2025.
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 ...
Laura Muñoz‐Duarte, Susmit Chakraborty, Louise Vinther Grøn, Maria Florencia Bambace, Jacopo Catalano, Jo Philips   +5 more
wiley   +1 more source

Stepwise engineering of Clostridium ljungdahlii for efficient ethanol production from single-carbon gases

Green Carbon
Ethanol, a cornerstone biofuel, has been successfully produced on an industrial scale via fermentation of industrial off-gases (CO/CO2) using gas-fermenting Clostridium strains.
Fengjuan Yang, Wanqi Li, Wei Ye, Peng Hu, Yinhua Lu, Weihong Jiang, Yang Gu   +6 more
doaj   +1 more source

Methanol and Carbon Monoxide Metabolism of the Thermophile Moorella caeni

Environmental Microbiology, Volume 27, Issue 4, April 2025.
An omics approach was used to elucidate the C1 metabolism of Moorella caeni DSM 21394 T, which exhibits acetogenic metabolism on methanol and hydrogenogenic metabolism on CO. Our results suggest that respiratory Complex I serves as the primary respiratory enzyme in methanol‐grown cells.
Nicolas A. Vecchini Santaella, Alfons J. M. Stams, Diana Z. Sousa   +2 more
wiley   +1 more source

Bioethanol Production via Syngas Fermentation

MATEC Web of Conferences, 2018
Bioconversion of C-1 carbon in syngas through microbial fermentation presents a huge potential to be further explored for ethanol production. Syngas can be obtained from the gasification of lignocellulosic biomass, by which most of carbon content of the ...
Anggraini Irika, Tri Ari Penia Kresnowati Made, Purwadi Ronny, Setiadi Tjandra   +3 more
doaj   +1 more source

A Two-Stage Continuous Fermentation System for Conversion of Syngas into Ethanol

Energies, 2013
We have established a two-stage continuous fermentation process for production of ethanol from synthesis gas (syngas) with Clostridium ljungdahlii. The system consists of a 1-L continuously stirred tank reactor as a growth stage and a 4-L bubble column ...
Hanno Richter, Michael E. Martin, Largus T. Angenent   +2 more
doaj   +1 more source

Acetate Shock Loads Enhance CO Uptake Rates of Anaerobic Microbiomes

Microbial Biotechnology, Volume 17, Issue 12, December 2024.
Pyrolysis of lignocellulosic biomass yields syngas and an acetate‐rich wastewater. This study examined high acetate levels during syngas co‐fermentation by anaerobic microbiomes at different pHs and temperatures. Microbiomes converted syngas at 64 g/L acetate and pH 5.5. Acetate supplementation increased CO conversion rates and altered product spectrum
Alberto Robazza, Ada Raya i Garcia, Flávio C. F. Baleeiro, Sabine Kleinsteuber, Anke Neumann   +4 more
wiley   +1 more source

Predicting proteome allocation, overflow metabolism, and metal requirements in a model acetogen.

PLoS Computational Biology, 2019
The unique capability of acetogens to ferment a broad range of substrates renders them ideal candidates for the biotechnological production of commodity chemicals.
Joanne K Liu, Colton Lloyd, Mahmoud M Al-Bassam, Ali Ebrahim, Ji-Nu Kim, Connor Olson, Alexander Aksenov, Pieter Dorrestein, Karsten Zengler   +8 more
doaj   +1 more source