Results 21 to 30 of about 62,990 (304)

Features of formation and reduction of sulfur dioxide emissions when burning brown coal in boilers with liquid slag removal [PDF]

open access: yesE3S Web of Conferences, 2020
The paper considers the influence of technological factors (design of the boiler-unit, load, air excess, the number of working dust collecting systems) on the formation and reduction of sulfur dioxide emissions in boilers with liquid slag removal ...
Elsukov Vladimir, Latushkina Svetlana
doaj   +1 more source

Reduction of Sulfur Dioxide to Sulfur Monoxide by Ferrous Porphyrin [PDF]

open access: yes, 2021
Reduction of SO¬2 to fixed forms of sulfur can address the growing concerns regarding its detrimental effect on health and environment as well as enable its valorization into valuable chemicals.
Aishik , Bhattacharya   +6 more
core   +1 more source

The Influence of Sulfur Dioxide Concentration on Antioxidant Activity, Total Polyphenols, Flavonoid Content and Individual Polyphenolic Compounds in White Wines during Storage

open access: yesAgriculture, 2023
Wines represent a rich source of bioactive compounds, especially polyphenolic compounds, which mostly contribute to the antioxidant activity. Sulfur dioxide (SO2) has mostly been used as a preservative in winemaking to prevent oxidation during storage ...
Jiří Mlček   +5 more
doaj   +1 more source

Enshi sulfur dioxide residues in food risk assessment [PDF]

open access: yesE3S Web of Conferences, 2020
From 2012 to 2019, the risk monitoring of food chemical contaminants and harmful factors in Enshi Prefecture found that the sulfur dioxide residues in food exceeded the standard seriously, and the sample exceeded the standard rate of 8.16%-17.7 ...
He Xiaohong   +4 more
doaj   +1 more source

Research on the reduction of SO2 doses in winemaking using lysozyme and oenological tannin [PDF]

open access: yesRomanian Journal of Horticulture, 2022
The effect of reducing the dose of sulfur dioxide on the physico-chemical and organoleptic properties of wines with Murfatlar controlled designation of origin was studied in this paper, experimenting with different prefermentative oenological treatments.
A. Ranca, M. Cosma, L. Enache
doaj   +1 more source

Measuring the oxygen consumption rate of some inactivated dry yeasts: comparison with other common wine antioxidants

open access: yesOENO One, 2021
The aim of the study was to evaluate the oxygen consumption kinetics of some inactivated dry yeasts in comparison with those of sulfur dioxide, ascorbic acid and glutathione.
Pere Pons-Mercadé   +7 more
doaj   +1 more source

Biomonitoring and spatial variability of sulphur dioxide in urban air

open access: yesRevista Ambiente & Água, 2011
Lichens are recognized as biological indicators of environmental pollution and also biomonitors of air quality due to their response capacity when exposed to polluted environments especially toxic gases such as sulfur dioxide (SO2) carbon dioxide (CO2 ...
Éder Lisandro de Moraes Flores   +3 more
doaj   +1 more source

Increasing the COP of a refrigeration cycle in natural gas liquefaction process using refrigerant blends of Propane-NH3, Propane-SO2 and Propane-CO2

open access: yesHeliyon, 2020
This paper investigates the feasibility of using inexpensive techniques to enhance the coefficient of performance (COP) of the refrigeration cycle used in the liquefaction of natural gas.
W.I. Mazyan   +3 more
doaj   +1 more source

Modeling the signature of sulfur mass-independent fractionation produced in the Archean atmosphere [PDF]

open access: yes, 2014
Minor sulfur isotope anomalies indicate the absence of O2 from the Archean atmosphere. A rich dataset showing large variations in magnitude and sign of Δ33S and Δ36S, preserved in both sulfates and sulfides, suggests that further constraints on Archean ...
Claire, Mark   +10 more
core   +1 more source

Biotechnological strategies to reduce the doses of sulfur dioxide in white winemaking and avoid problems of browning

open access: yesBIO Web of Conferences, 2023
This communication studies some possible strategies to reduce or even to replace sulfur dioxide in winemaking. Specifically, the aim of this work was to study the protective effect against oxidation of a commercial inactivated dry yeast (IDY) with very ...
Giménez Pol   +7 more
doaj   +1 more source

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