Publications related to Sulfites (10,000)
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Sulfiting agents (also known as sulphites) constitutes a class of chemical compounds - SO2 releasers, widely used as additives in food industry. These additives may cause several adverse reactions in humans; thus, their use is strictly regulated. The reliability of the Monier-Williams method, reference standard traditionally used in food control, h...
Sulfite and kraft pulping are two principal methods of industrial delignification of wood. In recent decades, those have been considered as possibilities to pretreat recalcitrant wood lignocellulosics for enzymatic hydrolysis of polysaccharides and subsequent fermentation of obtained sugars to valuable bioproducts. Current work compares chemistry a...
Wine can have stimulating and sedative effects on wine consumers. In our study we compared the stimulating and sedative effects of two wine typologies: organic and traditional wine. Organic wine is characterized by a lower quantity of sulfites in comparison to traditional wine. The two wines were administered to a sample of normal wine consumers (n...
Compressed fast-growing wood has excellent mechanical properties, making it a cheap alternative to solid wood. However, compression without pretreatment can lead to rupture of the cell walls of the wood and even to macroscopically visible cracks. Thus, to minimize damage to fast-growing wood during compression and to increase the compression ratio...
A healthy lifestyle and environmental protection play a big role in today’s modern society. The production of organic wine, as with other organic commodities, is therefore becoming increasingly popular with consumers. The selling price of organic wine is higher than that of wine that is not declared organic or BIO, so the question arises from consu...
The aim of our paper was to investigate the efficiency of some commercial products that contain blends of maceration enzymes on the bleaching of pulp obtained from soft wood, birch and polar, using a neutral sulfite semi-chemical pulping (NSSC) process. The enzyme biobleaching is a pretreatment process that releases from pulp the lignin-carbohydrat...
Certain microorganisms are capable of proliferating in wine despite its low pH and high ethanol content. The yeasts of the Saccharomyces genus responsible for alcoholic fermentation can alter wines with residual sugars; the proliferation of Brettanomyces bruxellensis brings about thoroughly unpleasant sensory changes. The main strategy currently ap...
The current work examines UV/Sulfite/ZnO (USZ) in reactor convectional (without baffles) and baffled photocatalytic reactors (BPCR) in order to cost-effectively photo-degrade trimipramine (TIR). The ideal conditions were 2:1:100 Sulfite/ZnO/TRI molar ratio, pH 7, and 30 min of reaction time for 97.4% TRI degradation. In the BPCR reactor, the measur...
In humans, methionine derived from dietary proteins is necessary for cellular homeostasis and regeneration of sulfur containing pathways, which produce inorganic sulfur species (ISS) along with essential organic sulfur compounds (OSC). In recent years, inorganic sulfur species have gained attention as key players in the crosstalk of human health an...
Background
Cold-adapted archaea have diverse ecological roles in a wide range of low-temperature environments. Improving our knowledge of the genomic features that enable psychrophiles to grow in cold environments helps us to understand their adaptive responses. However, samples from typical cold regions such as the remote Arctic and Antarctic are...
Using agronomic measures to remediate heavy metal chromium (Cr) on farmland is the main measure to achieve the safe utilization of crops. This study was conducted under field trial conditions using locally formulated fertilizers (urea–ammonium phosphate–potassium chloride) as the control. Different fertilizer-type treatments such as ammonium sulfit...
Perry is a beverage obtained by fermentation of pear juice, popular in the North Hemisphere. In Argentina it is an emerging market, particularly in the Patagonian region. The aim of this work is to describe and to evaluate the spoilage yeasts associated to six perry samples showing signs of microbiological contamination from a local craft perry com...
Sulfite is a common preservative in wine, but the spoilage yeast Brettanomyces bruxellensis can produce volatile phenols even with the recommended sulfite dose. The purpose of this study was to examine how wine components, p-coumaric acid (a precursor of volatile phenols), and micronutrients influence culturability, viability, and volatile phenols...
In the field of lithium-sulfur batteries (LSBs) and all-solid-state batteries, lithium sulfide (Li2S) is a critical raw material. However, its practical application is greatly hindered by its high price due to its deliquescent property and production at high temperatures (above 700 °C) with carbon emission. Hereby, we report a new method of prepari...
The chemical and structural diversity of minerals containing sulfur as an essential mineral forming element has been analyzed in terms of the concept of mineral systems and the information based structural and chemical complexity parameters. The study employs data for 1118 sulfur mineral species approved by the International Mineralogical Associati...
Günümüzde tüketiciler, gıdalardaki patojenik ve bozulmaya neden olan mikroorganizmaların neden olduğu artan sayıdaki hastalıkların yanı sıra sentetik koruyucular içeren gıdaların güvenliği konusunda sürekli endişe duymaktadır. Kâğıdın hidrofilisitesi ve gözenekli yapısı kolayca ortamdan veya yiyeceklerden suyun adsorpsiyonuna neden olabilir ve mikr...
Microbial dissimilatory sulfate reduction is a key process in the Earth biogeochemical sulfur cycle. In spite of its importance to the sulfur and carbon cycles, industrial processes and human health, it is still not clear how reduction of sulfate to sulfide is coupled to energy conservation. A central step in the pathway is the reduction of sulfite...
The genome-wide DNA methylation profile, or DNA methylome, is a critical component of the overall epigenomic landscape that modulates gene activities and cell fate. Single-cell DNA methylomic studies offer unprecedented resolution for detecting and profiling cell subsets based on methylomic features. However, existing single-cell methylomic technol...
Cellulose is produced industrially by the kraft and sulfite processes. The evolution of these technologies in biorefineries is driven by the need to obtain greater added value through the efficient use of raw materials and energy. In this field, organosolv technologies (and within them, those using liquid phases made up of water and one partly misc...
Cysteine sulfinate decarboxylase (CSAD) is a rate-limiting enzyme in taurine biosynthesis. In this study, the structure and expression characteristics of the RpCSAD gene in Ruditapes philippinarum were analyzed. The pyridoxal phosphate (PLP)-dependent amino acid carboxylase structural domains and catalytic active sites of six copies of RpCSAD were...
Lithium metal batteries (LMBs) have the potential to significantly increase the energy density of advanced batteries in the future. Nonetheless, the dendritic lithium structures and low Coulombic efficiency (CE) of LMBs currently impede their applied implementation. Herein, a sulfite‐based electrolyte (SBE/FEC), including 1.0 m lithium bis(fluorosu...
Shales are composed of minerals and organic matter, whose individual properties are essential to determining the rock’s macroscopical deformation and strength. Scanning electron microscopy combined with electron energy dispersive spectroscopy (EDS) has been extensively used to evaluate composition, while peak-force atomic force microscopy (AFM) has...
We report the isolation of Paracoccus onubensis strain Merri, which can grow on the rare sulfosugar sulfofucose (6-deoxy-6-sulfo-D-galactose) as sole carbon source, leading to its breakdown and release of sulfite. Genome sequencing and comparative proteomics of samples grown on glucose versus sulfofucose identified a genetic locus containing most o...
The study area is located in Anbar Governorate, western Iraq, within the city of Ramadi, in the area adjacent to Al-Warrar Canal. The study area suffers from a lack of previous hydraulically studies, hydrological, the geological, and topographical characteristic and the soil characteristics, also suffers from a significant increasing in levels of g...
A healthy lifestyle and environmental protection play a big role in today's modern society. The production of organic wine, as with other organic commodities, is therefore increasingly popular with consumers. The selling price of organic wine is higher than that of wine that is not declared organic or BIO, so the question arises from consumers whet...
Using agronomic measures to remediate heavy metals on farmland is the main measure to achieve the safe utilization of crops. Investigating the effects of applying different fertilizers on the uptake, and translocation of Chromium (Cr) in maize and on the effectiveness of Cr in soil under Cr contamination of farmland is of great theoretical and prac...
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An alkaliphilic, sulfate-reducing, anaerobic bacterium (strain H1 T ) was isolated from a terrestrial mud volcano at the Taman Peninsula, Russia. The cells of the isolate were gram-negative motile vibrios, 1 µm in diameter and 2.0–2.5 µm in length. Strain H1 T grew at 14–42°C (optimum at 37°C), pH 8.5–10.5 (optimum at pH 9.5), and NaCl concentrat...
Microbial dissimilatory sulfur metabolism utilizing dissimilatory sulfite reductases (Dsr) influenced the biochemical sulfur cycle during Earth's history and the Dsr pathway is thought to be an ancient metabolic process. Here we performed comparative genomics, phylogenetic, and synteny analyses of several Dsr proteins involved in or associated with...
In the wet flue gas desulfurization (WFGD) process, SO2 is adsorbed by alkaline liquor to produce alkaline wastewater containing sulfate and sulfite. Although the traditional chemical treatment method can achieve a high removal rate, it consumes a large number of chemicals and yields a large number of low-value by-products. The biological treatment...
The solar‐driven interfacial evaporation has attracted great attention for the purpose of alleviating freshwater shortage. Lignosulfonate (LS), a main byproduct of sulfite pulping processes, is an abundant natural resource but has not been reasonably utilized. To mitigate the above problems, biochar‐based interfacial evaporators derived from LS for...
The synthesis of polyacrylamide and a copolymer of acrylamide and maleic acid was studied depending on the pH, duration, temperature, and concentration of the redox system of the initiator. The process of alkaline hydrolysis of synthesized polymers has been studied. High-viscosity characteristics of polymer solutions were taken as the main criterio...
The obligately anaerobic sulfite-reducing bacterium Bilophila wadsworthia is a common human pathobiont inhabiting the distal intestinal tract. It has a unique ability to utilize a diverse range of food- and host-derived sulfonates to generate sulfite as terminal electron acceptor (TEA) for anaerobic respiration, converting the sulfonate sulfur to H...
The purpose of this study was to recycle red mud, an industrial byproduct that generates 300,000 tons per year, into the construction industry. Red mud was prepared as a liquid, neutralized with sulfuric acid, and replaced with cement mortar. The properties of liquefied red mud (LRM) neutralized with sulfuric acid (LRM + S) were investigated as wel...
Sulfate/sulfite-reducing microorganisms (SRM) are ubiquitous in nature, driving the global sulfur cycle. A hallmark of SRM is the dissimilatory sulfite reductase encoded by the paralogous genes dsrAB . Based on analysis of 950 mainly metagenome-derived dsrAB -encoding genomes, we redefine the global diversity of microorganisms with the potential fo...
Flue gas desulfurization (FGD) waste is an industrial by-product generated during the flue gas desulfurization process in coal-fired power plants. This by-product contain trace quantities of naturally occurring radionuclides and elements such as As, Ba, Co, Cr, Zn. The characteristics of FGD waste are important for its reuse and are mainly depend o...
Marine sediments comprise one of the largest environments on the planet, and their microbial inhabitants are significant players in global carbon and nutrient cycles. Recent studies using metagenomic techniques have shown the complexity of these communities and identified novel microorganisms from the ocean floor. Here, we obtained 77 metagenome-as...
Dark microbial CO2 fixation plays a crucial role in soil organic carbon (SOC) sequestration, but the fungus contributions to this process in varying agroecosystems remain unclear. This study investigated fungal CO2 fixation in 29 soil samples collected from the major agricultural regions across China. Phospholipid fatty analysis-stable isotope prob...
Torulaspora delbrueckii showed renewed interest in recent years in the fermentation of wine, for its biotechnological potential linked to the ability to enhance flavor and aroma and it probably is the non-Saccharomyces yeast currently widely used in winemaking. On the base of this, sequential fermentations with a selected native strain of T. delbru...
Apatite can incorporate sulfur in its reduced form (S²⁻) when apatite equilibrates with a silicate melt under reducing conditions. Incorporation of sulfate (S⁶⁺) has been observed in terrestrial apatite under oxidizing conditions. Thus, it has been suggested that the proportions of S⁶⁺/S²⁻ in apatite may record the oxygen fugacity (fO2) during the...
Nowadays, the development of naturalness as a concept is illustrated in the oenological field by the development of wine produced with lower inputs, sometimes even without any addition of SO2 throughout the winemaking process, up to the bottling stage. Despite the increase in the offer of these wines, they remain poorly explored in the literature a...
Xylan is a macromolecule of industrial interest that can be solubilized from lignocellulosic materials, such as sugarcane bagasse, which is a renewable source. However, the solubilization methods of xylan need to be better developed for use in industrial applications. The main objective of this study was to evaluate xylan solubilization methods wit...
Electrochemical reduction of nitrate has broad application prospects. However, in traditional electrochemical reduction of nitrate, the low value of oxygen produced by the anodic oxygen evolution reaction and the high overpotential limit its application. Seeking a more valuable and faster anodic reaction to form a cathode–anode integrated system wi...
An electrochemical/I− dual-catalyzed access to sulfonated pyrazoles from pyrazolones and sodium sulfites under external oxidant-free conditions has been developed. This established electrochemical reaction works smoothly under external oxidant-free conditions, and has the advantages of good functional group tolerance, easy to gram-scale synthesis,...
Elemental sulfur (S ⁰ ) is known to form in submarine acid-sulfate vents by disproportionation of magmatic SO 2 . S ⁰ formed upon disproportionation shows δ ³⁴ S S values considerably lower than the influxing magmatic SO 2 , which results in δ ³⁴ S S values typically <0‰. The peculiar occurrence of isotopically heavy sulfur in the Kemp Caldera hydr...
Sulfite predominantly accumulates in the brain of patients with isolated sulfite oxidase (ISOD) and molybdenum cofactor (MoCD) deficiencies. Patients present with severe neurological symptoms and basal ganglia alterations, the pathophysiology of which is not fully established. Therapies are ineffective. To elucidate the pathomechanisms of ISOD and...
Sulfite determination in foods and alcoholic beverages is a common requirement by food and drug administration organisations in most countries. In this study, the enzyme, sulfite oxidase (SOx), is used to biofunctionalise a platinum-nanoparticle-modified polypyrrole nanowire array (PPyNWA) for the ultrasensitive amperometric detection of sulfite. A...
The objective of this research is to assess the quality of underground water in Kabul city in terms of health and compliance with WHO and other relevant standards. To evaluate underground water quality in Kabul city, 25 water samples are collected from various locations. Advanced instruments such as the HQ440d Multi-Meter, Turbidity Meter, Conducti...
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Methanothermococcus thermolithotrophicus is the only known methanogen that grows on sulfate as its sole sulfur source, uniquely uniting methanogenesis and sulfate reduction. Here we use physiological, biochemical and structural analyses to provide a snapshot of the complete sulfate reduction pathway of this methanogenic archaeon. We find that later...
This study compared some quality properties of yellow-fleshed sweet potato flour samples as affected by pretreatments (0.02% sulfite; blanching 85 °C for 3 min 30 s and steam blanching 100 °C for 2 min) and drying methods (oven, sun, and drum drying). The physicochemical composition, functional properties, pasting profile, and least gelation concen...
Due to their copious availability and broad applicability, iodine recovery from numerous sources, such as byproducts of various industrial processes, has attracted attention. To meet growing market demand for iodine as well as to accomplish long-term management of iodine resources, phosphate rocks and their derivatives were discovered as a possible...
Background
Polycystic ovarian syndrome (PCOS) is a common endocrine and metabolic disease in women. Hyperandrogenaemia (HA) and insulin resistance (IR) are the basic pathophysiological characteristics of PCOS. The aetiology of PCOS has not been fully identified and is generally believed to be related to the combined effects of genetic, metabolic, i...
Sodium sulfite is commonly used for impregnating wood chips prior to refining when producing high-yield pulps such as CTMP. The impregnation process should ideally result in evenly sulfonated lignin, i.e. similar concentrations of sulfite (SO3 ^2-) ions in all parts of each wood chip. Sulfonated lignin is known to swell the fiber wall, which is ben...
Defibration of wood chips in high-yield pulping such as CTMP production involves sulfonation of wood chips using (Na2SO3). When aiming to improve product properties, one key issue to investigate is the evenness of the sulfonation, i.e., the distribution of the sulfite (SO32-) ions. The challenge is that the inner parts of the wood chips absorb much...
Heterogeneous photocatalytic systems generally lack thermodynamic dependence on the degradation of organic pollutants in aqueous solution. Therefore, it is important to reveal the reasons for the inhibited surface kinetics but still be neglected. Herein, we reveal the mechanism that BiVO 4 can’t degrade organics although it is thermodynamically fea...
Magnetotactic bacteria (MTB) within the Nitrospirota phylum play important roles in biogeochemical cycles due to their outstanding ability to biomineralize large amounts of magnetite magnetosomes and intracellular sulfur globules. For several decades, Nitrospirota MTB were believed to only live in freshwater or low-salinity environments. While this...
Marine sponges are critical components of marine benthic fauna assemblages, where their filter-feeding and reef-building capabilities provide bentho-pelagic coupling and crucial habitat. As potentially the oldest representation of a metazoan-microbe symbiosis, they also harbor dense, diverse, and species-specific communities of microbes, which are...
A novel alkaliphilic sulfate-reducing bacterium, strain M08butT, was isolated from a salsa lake of terrestrial mud volcano (Taman Peninsula, Russia). Cells were rod-shaped, motile and Gram-stain-negative. The temperature range for growth was 15–42 °C (optimum at 30 °C). The pH range for growth was 7.0–11.0, with an optimum at pH 8.5–9.0 Strain M08b...
Three ammonium-iron-sulfites (AIS) from a burning coal dump in an abandoned open coal pit at Pécs-Vasas (Mecsek Mountains, South Hungary) were identified: (NH4)9Fe³⁺(SO3)6 (AIS-1), (NH4)2Fe²⁺(SO3)2 (AIS-2), and (NH4)2Fe³⁺(OH)(SO3)2·H2O (AIS-3). They were formed by the interaction of decomposing iron sulfides and ammonia released from organic matter...
The article discusses the study of the kinetics of membrane filtration of NaCl solutions containing additives of a sulfite solution with sodium lignosulfonate (Na-LS). The mechanism of the effect of lignosulfonate on the process is revealed through cellulose acetate membranes of various densities. The main reason for improving the individual charac...
In the present research, hydrodynamic cavitation (HC) and zero-valent iron (ZVI) were used to generate sulfate radicals through sulfite activation as a new source of sulfate for the efficient degradation of Direct Red 83 (DR83). A systematic analysis was carried out to examine the effects of operational parameters, including the pH of the solution,...
Synchronously catalytic oxidation of sulfite (SO32-) and separation of selenium (Se) to achieve wastewater detoxication and sulfate purification from flue gas desulfurization wastewater is a desirable circular economy method but...