Results 31 to 40 of about 1,043 (212)

The nitrite oxidizing system of Nitrobacter winogradskyi [PDF]

open access: yesFEMS Microbiology Letters, 1988
Cytochrome components which participate in the oxidation of nitrite in Nitrobacter winogradskyi have been highly purified and their properties studied in detail. Cytochrome a1c1 is an iron-sulphur molybdoenzyme which has haems a and c and acts as a nitrite-cytochrome c oxidoreductase.
T, Yamanaka, Y, Fukumori
openaire   +2 more sources

Intergradation of UiO‐66 Nanoparticles with Expanded Graphite for Electrocatalytic Determination of Nitrite and L‐Cysteine

open access: yesAdvanced Sensor Research, 2023
In this study, metal–organic framework (MOF) nanoparticles of UiO‐66 are integrated with expanded graphite (EG) (UiO‐66/EG) by a facile solvothermal approach.
Yangwei Li   +5 more
doaj   +1 more source

Fabrication of a Disposable Amperometric Sensor for the Determination of Nitrite in Food

open access: yesMicromachines, 2023
Silver nanoparticles (AgNPs) were synthesized through an environmentally friendly method with tea extract as a reduction agent. By immobilizing them on the surface of a low-cost pencil graphite electrode (PGE) with the aid of a simple and well-controlled
Chao Liu   +7 more
doaj   +1 more source

The Effects of Natural Antioxidants on Protein Oxidation, Lipid Oxidation, Color, and Sensory Attributes of Beef Patties during Cold Storage at 4℃

open access: yesFood Science of Animal Resources, 2018
This study aimed to investigate the use of golden thread extract (GTE), clove extract (CE), and commercially available nitrite for retarding lipid and protein oxidation and for maintaining color stability and sensory attributes in beef patties stored at ...
Ashrafuzzaman Zahid   +6 more
doaj   +1 more source

Determination of Nitric Oxide-Derived Nitrite and Nitrate in Biological Samples by HPLC Coupled to Nitrite Oxidation [PDF]

open access: yesChromatographia, 2013
Nitrite and nitrate are main stable products of nitric oxide, a pivotal cellular signaling molecule, in biological fluids. Therefore, accurate measurement of the two ions is profoundly important. Nitrite is difficult to be determined for a larger number of interferences and unstable in the presence of oxygen. In this paper, a simple, cost-effective and
Wu, Anguo   +8 more
openaire   +2 more sources

Characterization of the First “Candidatus Nitrotoga” Isolate Reveals Metabolic Versatility and Separate Evolution of Widespread Nitrite-Oxidizing Bacteria

open access: yesmBio, 2018
Nitrification is a key process of the biogeochemical nitrogen cycle and of biological wastewater treatment. The second step, nitrite oxidation to nitrate, is catalyzed by phylogenetically diverse, chemolithoautotrophic nitrite-oxidizing bacteria (NOB ...
Katharina Kitzinger   +16 more
doaj   +1 more source

Model-based investigation of membrane biofilm reactors coupling anammox with nitrite/nitrate-dependent anaerobic methane oxidation

open access: yesEnvironment International, 2020
An innovative process coupling anaerobic ammonium oxidation (anammox) with nitrite/nitrate-dependent anaerobic methane oxidation (n-DAMO) in membrane biofilm reactors (MBfRs) has been developed to achieve high-level nitrogen removal from both sidestream (
Tao Liu   +3 more
doaj   +1 more source

Identification of Nitrite-Oxidizing Bacteria with Monoclonal Antibodies Recognizing the Nitrite Oxidoreductase [PDF]

open access: yesApplied and Environmental Microbiology, 1999
ABSTRACT Immunoblot analyses performed with three monoclonal antibodies (MAbs) that recognized the nitrite oxidoreductase (NOR) of the genus Nitrobacter were used for taxonomic investigations of nitrite oxidizers.
S, Bartosch   +3 more
openaire   +2 more sources

A hybrid oxidation approach for converting high-strength urine ammonia into ammonium nitrate

open access: yesWater Research X
Nutrient resources contained in human urine have great potential to alleviate global agricultural fertilizer demand. Microbial nitrification is a recognized strategy for stabilizing urine ammonia into ammonium nitrate, a common fertilizer worldwide, but ...
Zhiqiang Zuo   +7 more
doaj   +1 more source

On the effect of pharmaceuticals on bacterial nitrite oxidation

open access: yesWater Science and Technology, 2004
Pharmaceuticals or their metabolites are partially excreted with urine or faeces ending up in raw sewage. Many of these substances are not biodegradable and their presence in influents of municipal wastewater treatment plants may cause adverse effects to sensitive biological processes such as nitrification, while on the other hand, they may go through ...
S N, Dokianakis   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy