Results 21 to 30 of about 32,845 (232)

Simple Flow-Based System with an In-Line Membrane Gas–Liquid Separation Unit and a Contactless Conductivity Detector for the Direct Determination of Sulfite in Clear and Turbid Food Samples

Membranes, 2020
This study presents a simple flow-based system for the determination of the preservative agent sulfite in food and beverages. The standard method of conversion of sulfite ions into SO2 gas by acidification is employed to separate the sulfite from sample ...
Aulia Ayuning Tyas, Thitaporn Sonsa-ard, Kanchana Uraisin, Duangjai Nacapricha, Phoonthawee Saetear   +4 more
doaj   +1 more source

Sulfite Alters the Mitochondrial Network in Molybdenum Cofactor Deficiency

Frontiers in Genetics, 2021
Molybdenum cofactor deficiency (MoCD) is an autosomal recessive disorder belonging to the large family of inborn errors in metabolism. Patients typically present with encephalopathy and seizures early after birth and develop severe neurodegeneration ...
Anna-Theresa Mellis, Juliane Roeper, Albert L. Misko, Joshua Kohl, Guenter Schwarz, Guenter Schwarz   +5 more
doaj   +1 more source

Sulfite-induced protein radical formation in LPS aerosol-challenged mice: Implications for sulfite sensitivity in human lung disease

Redox Biology, 2018
Exposure to (bi)sulfite (HSO3–) and sulfite (SO32–) has been shown to induce a wide range of adverse reactions in sensitive individuals. Studies have shown that peroxidase-catalyzed oxidation of (bi)sulfite leads to formation of several reactive free ...
Ashutosh Kumar, Mathilde Triquigneaux, Jennifer Madenspacher, Kalina Ranguelova, John J. Bang, Michael B. Fessler, Ronald P. Mason   +6 more
doaj   +1 more source

A stable and sensitive Au metal organic frameworks resonance Rayleigh scattering nanoprobe for detection of SO32– in food based on fuchsin addition reaction

Frontiers in Nutrition, 2022
A stable Au metal organic frameworks (AuMOF) nanosol was prepared. It was characterized by electron microscopy and molecular spectral techniques. In pH 6.8 PBS buffer solution, AuMOF nanoprobes exhibit a strong resonance Rayleigh scattering (RRS) peak at
Xiaowen Lv, Xiaowen Lv, Yue Liu, Yue Liu, Shuangshuang Zhou, Shuangshuang Zhou, Menglei Wu, Menglei Wu, Zhiliang Jiang, Zhiliang Jiang, Guiqing Wen, Guiqing Wen   +11 more
doaj   +1 more source

Sulfur dioxide exploitation by electrochemical oxidation of sulfite in near-neutral pH electrolytes: A kinetics and mechanistic study

Electrochemistry Communications, 2019
Electrochemical oxidation of sulfite ions offers an efficient and profitable approach to the conversion of sulfur dioxide, a harmful air pollutant, into valuable by-products via flue gas desulfurization.
R.A. Márquez-Montes, R.E. Orozco-Mena, D. Lardizábal-Gutiérrez, D. Chávez-Flores, A. López-Ortíz, V.H. Ramos-Sánchez   +5 more
doaj   +1 more source

Electrochemical Detection for Sulfite Using Glassy Carbon Electrode Modified by Electrodeposition of Platinum Particles on Nitrogen-Containing Functional Groups

Electrochemistry, 2020
This study reports a novel electrochemical sensing technique based on electro-deposited Pt particles on glassy carbon electrodes modified with nitrogen atoms containing functional groups (PtNF-GC) electrode for detecting sulfite in aqueous solution. PtNF-
Satrio KUNTOLAKSONO, Chihiro SHIMAMURA, Hiroaki MATSUURA   +2 more
doaj   +1 more source

Modulation of the H+/ATP coupling ratio by ADP and ATP as a possible regulatory feature in the F-type ATP synthases

Frontiers in Molecular Biosciences, 2022
F-type ATP synthases are transmembrane enzymes, which play a central role in the metabolism of all aerobic and photosynthetic cells and organisms, being the major source of their ATP synthesis.
Paola Turina
doaj   +1 more source

Research progress of UV/sulfite system on degradation of pollutants in water

Gongye shui chuli
Advanced reduction processes(ARPs) based on UV/sulfite(UV/SO32-) have received increasing attention due to high degradation capacity for some refractory pollutants.
SHEN Kaiyue, WEI Wenbo, ZHANG Xinhuan
doaj   +1 more source

Electron Spin Resonance Dosimetry Studies of Irradiated Sulfite Salts

Molecules, 2022
The study of new materials for radiation dosimetry is important to improve the present state of the art and to help in cases of accidents for retrospective dosimetry. Sulfites are compounds that contain a sulfur ion, widely used in the food industry. Due
Amanda Burg Rech, Angela Kinoshita, Paulo Marcos Donate, Otaciro Rangel Nascimento, Oswaldo Baffa   +4 more
doaj   +1 more source

Sulfite Reductase Co-suppression in Tobacco Reveals Detoxification Mechanisms and Downstream Responses Comparable to Sulfate Starvation

Frontiers in Plant Science, 2018
Sulfite reductase (SIR) is a key enzyme in higher plants in the assimilatory sulfate reduction pathway. SIR, being exclusively localized in plastids, catalyzes the reduction of sulfite (SO32−) to sulfide (S2−) and is essential for plant life.
Marcel Naumann, Marcel Naumann, Hans-Michael Hubberten, Mutsumi Watanabe, Mutsumi Watanabe, Robert Hänsch, Mark Aurel Schöttler, Rainer Hoefgen   +7 more
doaj   +1 more source