Results 41 to 50 of about 10,116 (219)

Dissolution Kinetics of Complex Sulfides Using Acidophilic Microorganisms

MATERIALS TRANSACTIONS, 2010
Bioleaching studies were conducted to evaluate a complex sulfide concentrate using an acidophilic microorganism. The leaching kinetics were found to vary based on pulp density, Fe and pH. In addition, the leaching efficiency increased as the Fe(II) concentration increased up to 20 kgm 3 , after which it decreased due to an increase in iron ...
Debabrata Pradhan, Dong Jin Kim, Gautam Roy Chaudhury, Jeong Soo Sohn, Seoung Won Lee   +4 more
openaire   +2 more sources

PCR-mediated detection of acidophilic, bioleaching-associated bacteria [PDF]

, 1997
The detection of acidophilic microorganisms from mining environments by culture methods is time consuming and unreliable. Several PCR approaches were developed to amplify small-subunit rRNA sequences from the DNA of six bacterial phylotypes associated ...
Altschul S. F., Amaro A. M., Apel W. A., Durand P., Goebel B. M., Golovacheva R. S., Hallberg K. B., Hallberg K. B., Hallman R., Harrison A. P., Harrison A. P., Jerez C. A., Johnson D. B., Khalid A. M., Lane D. J., Maidak B. C., Markosyan G. E., Merrettig U., Moreira D., Norris P. R., Novo M. T. M., Peng J. B., Pizarro J., Sand W., Somerville C. C., Stoner D. L., Tsai Y. L.   +26 more
core   +1 more source

Isolation and Characterization of Thermophilic Enzymes Producing Microorganisms for Potential Therapeutic and Industrial Use

Journal of Pure and Applied Microbiology, 2018
The need of extremophile enzymes is increased. Such enzymes had found their utility in bio-industries such as leather, food, animal feed, textiles, and in bioconversions and bioremediation.
Hasnaa R. Temsaah, Ahmed F. Azmy, Mai Raslan, Amr E. Ahmed, Walaa G. Hozayen   +4 more
doaj   +1 more source

Bioleaching of copper- and zinc-bearing ore using consortia of indigenous iron-oxidizing bacteria [PDF]

, 2018
Indigenous iron-oxidizing bacteria were isolated on modified selective 9KFe(2+) medium from Baiyin copper mine stope, China. Three distinct acidophilic bacteria were isolated and identified by analyzing the sequences of 16S rRNA gene.
Khan, Suliman, Ma, Xiangxian, Sajjad, Wasim, Xu, Wang, Zhang, Gaosen, Zheng, Guodong   +5 more
core   +1 more source

Draft genome sequence of Acidithiobacillus thiooxidans CLST isolated from the acidic hypersaline Gorbea salt flat in northern Chile

Standards in Genomic Sciences, 2017
Acidithiobacillus thiooxidans CLST is an extremely acidophilic gamma-proteobacteria that was isolated from the Gorbea salt flat, an acidic hypersaline environment in northern Chile.
Raquel Quatrini, Lorena V. Escudero, Ana Moya-Beltrán, Pedro A. Galleguillos, Francisco Issotta, Mauricio Acosta, Juan Pablo Cárdenas, Harold Nuñez, Karina Salinas, David S. Holmes, Cecilia Demergasso   +10 more
doaj   +1 more source

Distribution of Acidophilic Microorganisms in Natural and Man-made Acidic Environments [PDF]

Current Issues in Molecular Biology, 2016
Acidophilic microorganisms can thrive in both natural and man-made environments. Natural acidic environments comprise hydrothermal sites on land or in the deep sea, cave systems, acid sulfate soils and acidic fens, as well as naturally exposed ore deposits (gossans).
Hedrich, Sabrina, Schippers, Axel
openaire   +2 more sources

Biotechnological Recycling and Recovery of Metals from Waste Printed Circuit Boards and Spent Li-Ion Batteries—Selected Results from the ERAMIN EU BaCLEM Project

Materials Proceedings
This project investigated metal recovery from waste printed circuit boards (WPCBs) and spent lithium-ion batteries (LiBs) using pure and mixed-culture acidophilic microorganisms.
Sandeep Panda, Ata Akcil, Stoyan Gaydardzhiev, Eric D. van Hullebusch, Mehmet Gönen, Seydou Dembele   +5 more
doaj   +1 more source

Electron Communication of Bacillus subtilis in Harsh Environments

iScience, 2019
Summary: Elucidating the effect of harsh environments on the activities of microorganisms is important in revealing how microbes withstand unfavorable conditions or evolve mechanisms to counteract those effects, many of which involve electron transfer ...
Lixiang Chen, Changli Cao, Shuhua Wang, John R. Varcoe, Robert C.T. Slade, Claudio Avignone-Rossa, Feng Zhao   +6 more
doaj   +1 more source

Molecular Signatures of Peripheral and Central Dental Pulp Subpopulations in Response to Streptococcus mutans: A Bulk RNA‐Seq Analysis

International Endodontic Journal, EarlyView.
ABSTRACT Aim The dental pulp is an immunologically active tissue that responds dynamically to cariogenic challenge. Peripheral pulp cells adjacent to dentine encounter bacterial stimuli earlier than cells located in the central pulp. To investigate signalling and immune interactions, this study profiled the transcriptomes of dentine‐adherent cells ...
Sandra Pohl, Maximilian L. Huber, Tobias Akamp, Andreas Rosendahl, Melanie Linnebank, Lea Schreiber, Claudia Gebhard, Nicholas Strieder, Michael Rehli, Wolfgang Buchalla, Matthias Widbiller   +10 more
wiley   +1 more source

Distinct Roles of Acidophiles in Complete Oxidation of High-Sulfur Ferric Leach Product of Zinc Sulfide Concentrate

Microorganisms, 2020
A two-step process, which involved ferric leaching with biologically generated solution and subsequent biooxidation with the microbial community, has been previously proposed for the processing of low-grade zinc sulfide concentrates.
Maxim Muravyov, Anna Panyushkina
doaj   +1 more source