Results 21 to 30 of about 406 (161)

The Alternating Growth of Bacteria within a Consortium During Desulfurization of Coal

Environment and Natural Resources Journal, 2022
Efforts to reduce organic sulfur in coal are taken through biodesulfurization by using desulfurization bacteria to release covalently-bound sulfur from the coal matrix. Coal is a complex hydrocarbon material that requires collaboration from more than one
Megga Ratnasari Pikoli, Pingkan Aditiawati, Dea Indriani Astuti, Akhmaloka   +3 more
doaj   +1 more source

Medium composition overturns the widely accepted sulfate‐dependent repression of desulfurization phenotype in Rhodococcus qingshengii IGTS8

Biotechnology and Bioengineering, Volume 120, Issue 10, Page 3092-3098, October 2023., 2023
Graphical Abstract An optimized culture medium, namely Medium C, significantly enhanced the biodesulfurization activity and biomass concentration of Rhodococcus qingshengii IGTS8, without modification of the natural biocatalyst. The supplementation of ethanol as a carbon source, combined with a unique selection of salt, metal, and vitamin solutions ...
Olga Martzoukou, Diomi Mamma, Dimitris G. Hatzinikolaou   +2 more
wiley   +1 more source

The Arsenal of Aromatic Degrading Bacteria: How They Sense, Chase, Adapt and Destroy Environmental Pollutants. [PDF]

Microb Biotechnol
In the environment, bacteria sense aromatic pollutants, migrate toward them, adapt to toxicity, and deploy specialized uptake and catabolic systems. Genomic plasticity, metabolic versatility and division of labor within populations together aid in the degradation of persistent aromatics, highlights that biodegradation is driven by various eco ...
Phale PS, Dhamale T, Subhash S.
europepmc   +2 more sources

Characterization of a dszEABC operon providing fast growth on dibenzothiophene and construction of broad‐host‐range biodesulfurization catalysts

Environmental Microbiology, Volume 24, Issue 4, Page 1946-1963, April 2022., 2022
Summary A new operon for biodesulfurization (BDS) of dibenzothiophene and derivatives has been isolated from a metagenomic library made from oil‐contaminated soil, by selecting growth of E. coli on DBT as the sulfur source. This operon is similar to a dszEABC operon also isolated by metagenomic functional screening but exhibited substantial differences:
Guadalupe Martín‐Cabello, Laura Terrón‐González, Eduardo Santero   +2 more
wiley   +1 more source

Biodesulfurizing Microbes in the Petroleum Refinery Areas of Saudi Arabia

Journal of Pure and Applied Microbiology, 2023
Gordonia sp., Rhodococcus, Paenibaccilus, Mycobacterium and many other desulfurizing strains have shown good potential for dibenzothiophene (DBT), 4, 6-Dimethyldibenzothiophene (4-6-Dimethyl dibenzothiophene) and other organosulfur biodesulfurization ...
Abrar Ahmad, Othman A. Baothman, Muhammad Shahid Nadeem, Varish Ahmad   +3 more
doaj   +1 more source

Highly integrated adaptive mechanisms in Spiribacter halalkaliphilus, a bacterium abundant in Chinese soda‐saline lakes

Environmental Microbiology, Volume 23, Issue 11, Page 6463-6482, November 2021., 2021
Summary Soda‐saline lakes are polyextreme environments inhabited by many haloalkaliphiles, including one of the most abundant Spiribacter species. However, its mechanisms of adaptation are not ecophysiologically characterized. Based on a large‐scale cultivation strategy, we obtained a representative isolate of this Spiribacter species whose relative ...
Qiong Xue, Dahe Zhao, Shengjie Zhang, Heng Zhou, Zhenqiang Zuo, Jian Zhou, Ming Li, Hua Xiang   +7 more
wiley   +1 more source

Desulfurization of Tabas coal using chemical (Meyers, Molten caustic leaching) and biological (bioleaching) methods [PDF]

International Journal of Mining and Geo-Engineering, 2023
From an economic, technological, and environmental perspective, sulfur removal from coal resources has received increased attention in recent years. The present work investigates the ability of chemical (Meyers and Molten caustic leaching (MCL)) and ...
Mohammadreza Shahbazi, Hadi Abdollahi, Sied Shafaei, Ziaeddin Pourkarimi, Sajjad Jannesar Malakooti, Mehdi Rahimi, Ehsan Ebrahimi   +6 more
doaj   +1 more source

Elevated c‐di‐GMP levels promote biofilm formation and biodesulfurization capacity of Rhodococcus erythropolis

Microbial Biotechnology, Volume 14, Issue 3, Page 923-937, May 2021., 2021
In this work, we addressed the major hurdle of developing novel Rhodococcus erythropolis biocatalysts with improved biodesulfurization ability. To do so, we promoted Rhodococcus capability of forming a biofilm through the heterologous expression of a diguanylate cyclase that led to the synthesis of the biofilm trigger molecule cyclic‐di‐GMP (c‐di‐GMP).
Pedro Dorado‐Morales, Igor Martínez, Virginia Rivero‐Buceta, Eduardo Díaz, Heike Bähre, Iñigo Lasa, Cristina Solano   +6 more
wiley   +1 more source

Biodesulfurization Processes for the Removal of Sulfur from Diesel Oil: A Perspective Report

Energies, 2023
The presence of elevated levels of sulfur in diesel oil results in an increased sulfur content in the process stream, which poses significant risks to human health, animals, the environment, vehicles, and infrastructure.
Roselle Y. Mamuad, Angelo Earvin Sy Choi
doaj   +1 more source

Biodesulfurization of Cayirhan Lignites

Energy Sources, Part A: Recovery, Utilization, and Environmental Effects, 2006
In this study, the lignite was improved oxidizing sulfur compounds by Thiobacillus thiooxidans and Thiobacillus ferrooxidans bacteria. Experiments in the batch reactors have been carried out 20% aqueous suspension of coal samples. Sugar beet molasses was used as the bacterial substrate.
Gürü, Metin, Çubuk, Meltem, Dursun, Şükrü, Demirbaş, Ayhan   +3 more
openaire   +3 more sources