Thiobacillus ferrooxidans, the bacterium most widely used; in bioleaching or microbial desulfurization studies, was grown in an electrolytic bioreactor containing a synthetic, ferrous sulfate medium. Passage of current through the medium reduced the bacterially generated ferric iron to the ferrous iron substrate. When used in conjunction with an inoculum that had been adapted to the electrolytic growth conditions, this technique increased the protein (cell) concentration by 3.7 times, increased the protein (cell) production rate by 6.5 times, increased the yield coefficient (cellular efficiency) by 8.0 times, and increased the ferrous iron oxidation rate by 1.5 times at 29 degrees C, compared with conventional cultivation techniques. A Monod-type equation with accepted values for the maximum specific growth rate could not account for the increased growth rate under electrolytic conditions.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/bit.260281214 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Major heme proteins hemoglobin and myoglobin with respect to their roles in oxidative stress - a brief review.
Front Chem
February 2025
Department of Biophysics, Molecular Biology and Bioinformatics, University College of Science, University of Calcutta, Kolkata, India.
Oxidative stress is considered as the root-cause of different pathological conditions. Transition metals, because of their redox-active states, are capable of free radical generation contributing oxidative stress. Hemoglobin and myoglobin are two major heme proteins, involved in oxygen transport and oxygen storage, respectively.
View Article and Find Full Text PDFGastric siderosis: an endoscopic diagnosis challenge.
Rev Esp Enferm Dig
March 2025
Gastroenterology and Endoscopy, Hospital Clínic Barcelona, Spain.
A 71-year-old man presented for a routine physical examination with multiple comorbidities, including severe panvascular disease and valvulopathy, requiring anticoagulation therapy. He had a history of chronic hemolytic anemia and had been taking oral ferrous sulfate for two years. Upper gastrointestinal endoscopy (UGE) was performed, as part of the study of the persist anemia, revealing an extensive nodular area with multiple brownish deposits and spontaneous hemorrhage.
View Article and Find Full Text PDFBinding mechanism, digestive stability, and cellular interactions of a potential organic Iron supplement: Fermented scallop skirt peptide (DDDHPGIF)-Iron complex.
Food Res Int
April 2025
SKL of Marine Food Processing & Safety Control, National Engineering Research Center of Seafood, Collaborative Innovation Center of Provincial and Ministerial Co-construction for Deep Processing, Collaborative Innovation Center of Seafood Deep Processing, School of Food Science and Technology, Dalian Polytechnic University, Dalian, Liaoning 116034, China. Electronic address:
The fermentation-derived scallop skirt peptide (DDDHPGIF) with strong ferrous ion-binding capability (95.17 ± 0.30 %) was identified in our previous study.
View Article and Find Full Text PDFMolecularly imprinted nanoparticles hitchhiking on neutrophils for precise treatment of ischemic stroke.
J Colloid Interface Sci
March 2025
School of Pharmacy, Jinzhou Medical University, Jinzhou 121000, China; Collaborative Innovation Center for Age-related Disease, Jinzhou Medical University, Jinzhou, Liaoning, China; Key Laboratory of Neurodegenerative Diseases of Liaoning Province, Jinzhou Medical University, Jinzhou, China. Electronic address:
Ischemic stroke (IS), the most prevalent type of stroke worldwide, is associated with a variety of complex processes, including oxidative stress, apoptosis, and ferroptosis. Recent findings indicate that inhibiting iron overload as a key regulatory mechanism of ferroptosis profoundly influences the pathogenesis and treatment of IS. In addition, enhanced blood-brain barrier (BBB) penetration and precise targeting of the ischaemic site contribute to improved therapeutic outcomes in IS.
View Article and Find Full Text PDFSubsurface Fe (II) affects concentrations of dissolved O in streamwater.
Water Res
March 2025
Bayreuth Center of Ecology and Environmental Research (BayCEER), Department of Hydrology, University of Bayreuth, Universitätstr. 30, 95448, Bayreuth, Germany.
The interface between groundwater and surface water is a critical zone influencing ecohydrological and biogeochemical cycles within surface water ecosystems. It is characterized by complex redox gradients, with groundwater-mediated inflow of reduced substances affecting the oxygen budget of stream water. In this study, we have experimentally simulated the inflow of Fe(II)-rich groundwater into the open stream water of a flume system to quantify its effect on dissolved oxygen concentration in both the stream water and the hyporheic zone.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!