Results 61 to 70 of about 95,534 (148)

Efficient Optimization of Gluconobacter oxydans Based on Protein Scaffold-Trimeric CutA to Enhance the Chemical Structure Stability of Enzymes for the Direct Production of 2-Keto-L-gulonic Acid

Journal of Chemistry, 2020
2-Keto-L-gulonic acid (2-KLG), the direct precursor of vitamin C, is produced by a two-step fermentation route from D-sorbitol in industry. However, this route is a complicated mix-culture system which involves three bacteria.
Lili Gao, Yuefeng Liu, Xiaoyu Zhang, Hongsheng Zhang   +3 more
doaj   +1 more source

Interactions of rare earth elements with living organisms and emerging biotechnical applications

PLANTS, PEOPLE, PLANET, Volume 7, Issue 5, Page 1251-1274, September 2025.
Rare earth elements (REEs) are critical resources required to achieve net‐zero carbon emission targets and energy security. However, rising demand for REEs coupled with significant extraction and processing challenges and geopolitical risks restricts access to REE resources.
Samantha A. McGaughey, Shagufta Iqbal, Annamaria De Rosa, Jessica A. Caley, Anna H. Kaksonen, Denys Villa‐Gomez, Caitlin S. Byrt   +6 more
wiley   +1 more source

PQQ ameliorates D-galactose induced cognitive impairments by reducing glutamate neurotoxicity via the GSK-3β/Akt signaling pathway in mouse

Scientific Reports, 2018
Oxidative stress is known to be associated with various age-related diseases. D-galactose (D-gal) has been considered a senescent model which induces oxidative stress response resulting in memory dysfunction.
Xing-qin Zhou, Zhi-wen Yao, Ying-Fu Peng, S. Mao, Dong Xu, X. Qin, Rong Zhang   +6 more
semanticscholar   +1 more source

In Hyphomicrobium denitrificans Two Related Sulfane‐Sulfur Responsive Transcriptional Repressors Regulate Thiosulfate Oxidation and Have a Deep Impact on Nitrate Respiration and Anaerobic Biosyntheses

Molecular Microbiology, Volume 124, Issue 3, Page 204-220, September 2025.
In Hyphomicrobium denitrificans, the use of thiosulfate as a supplemental electron donor is regulated by two homologous sulfane‐sulfur responsive ArsR‐type transcriptional repressors, sHdrR and SoxR, that act cooperatively. Remarkably, the regulation by sHdrR/SoxR extends far beyond sulfur oxidation and deeply affects anaerobic metabolism, particularly
Jingjing Li, Nora E. Schmitte, Kaya Törkel, Christiane Dahl   +3 more
wiley   +1 more source

The Elusive Chemistry of Pyrroloquinoline Quinone Dimethyl Ester Lanthanide Complexes in Biomimetic Alcohol Oxidation

European Journal of Inorganic Chemistry, Volume 28, Issue 24, August 29, 2025.
Biomimetic complexes of lanthanide‐dependent methanol dehydrogenases bearing a pyrroloquinoline quinone dimethyl ester ligand can oxidize alcohols to aldehydes. Spectroscopic studies on the reaction shed light on the mechanism of the reaction and may explain trends observed in the enzyme.
Ioana Ciubotaru, Lisa C. Biener, Violeta A. Vetsova, Patrick Weis, Michael Seitz, Lena J. Daumann   +5 more
wiley   +1 more source

Bacterial Nanocellulose: A Sustainable Revolution in Food Science

eFood, Volume 6, Issue 4, August 2025.
Bacterial nanocellulose (BNC), produced via bacterial fermentation, exhibits high mechanical strength, water retention, crystallinity, and transparency, supporting its application in active packaging, functional foods, and environmental remediation. ABSTRACT Bacterial nanocellulose (BNC) is an eco‐friendly biomaterial celebrated for its exceptional ...
Masoud Aman Mohammadi, Adel Mirza Alizadeh, Samira Dakhili, Safa Kooki, Seyede Marzieh Hosseini   +4 more
wiley   +1 more source

The TonB‐Dependent Transport System Facilitates the Uptake of Inorganic Metal Mediators in Pseudomonas putida KT2440 in a Bioelectrochemical System

Microbial Biotechnology, Volume 18, Issue 8, August 2025.
Mediator‐based extracellular electron transfer in Pseudomonas putida KT2440 relies on the TonB‐dependent system for effective mediator (ferricyanide) transport. Transcriptomic and functional analyses confirmed its key role, while OprF overexpression enhanced membrane permeability and current output. These findings clarify mediator uptake mechanisms and
Anna Weimer, Jens Krömer, Bin Lai, Christoph Wittmann   +3 more
wiley   +1 more source

Ameliorative effects of pyrroloquinoline quinone on oxidized fish oil-induced growth retardation, immune suppression, and oxidative stress in yellow catfish Tachysurus fulvidraco

Aquaculture Reports
Fish oil is the primary oil source in aquafeeds, but is susceptible to oxidation during production and storage, thereby leading to oxidative stress in fish.
Xiaona Ma, Licai Wu, Xuli Bao, Ziheng Wu, Qingchao Shi, Chuanjie Qin   +5 more
doaj   +1 more source

Bioinformatic evidence for a widely distributed, ribosomally produced electron carrier precursor, its maturation proteins, and its nicotinoprotein redox partners

BMC Genomics, 2011
Background Enzymes in the radical SAM (rSAM) domain family serve in a wide variety of biological processes, including RNA modification, enzyme activation, bacteriocin core peptide maturation, and cofactor biosynthesis.
Haft Daniel H
doaj   +1 more source

Engineered Living Energy Materials

Interdisciplinary Materials, Volume 4, Issue 3, Page 412-455, May 2025.
Engineered living energy materials (ELEMs) are nascent research frontier for enabling sustainable energy conversion and storage. These materials exhibit unique characteristics such as self‐regeneration, biodegradability, environmental response, and evolutionary adaptability. This paper overviews different energy conversion bio‐modules, summarizes their
Xinyi Yuan, Haiyi Xu, Xingwu Liu, Jicong Zhang, Jing Li, Qianyi Liang, Bolin An, Giuseppe Maria Paternò, Minyue Zhang, Yuqing Tang, Chen Zhang, Dake Xu, Chao Zhong, Ke Li, Xinyu Wang   +14 more
wiley   +1 more source