Results 11 to 20 of about 32,845 (232)

Recombinant Thaumatin-Like Protein (rTLP) and Chitinase (rCHI) from Vitis vinifera as Models for Wine Haze Formation

open access: yesMolecules, 2022
Cross-linking net aggregates of thermolabile thaumatin-like proteins (TLPs) and chitinases (CHIs) are the primary source of haze in white wines. Although bentonite fining is still routinely used in winemaking, alternative methods to selectively remove ...
Wendell Albuquerque   +9 more
doaj   +1 more source

Sulfite oxidase activity of cytochrome c: Role of hydrogen peroxide

open access: yesBiochemistry and Biophysics Reports, 2016
In humans, sulfite is generated endogenously by the metabolism of sulfur containing amino acids such as methionine and cysteine. Sulfite is also formed from exposure to sulfur dioxide, one of the major environmental pollutants.
Murugesan Velayutham   +3 more
doaj   +1 more source

Rapid Trace Detection of Sulfite Residue in White Wine Using a Multichannel Colorimetric Nanozyme Sensor

open access: yesFoods, 2023
As a commonly used food additive, sulfite (SO32−) is popular with food manufacturers due to the functions of bleaching, sterilizing, and oxidation resistance. However, excess sulfites can pose a threat to human health.
Xiaoyue Yue   +4 more
doaj   +1 more source

Autophagy is required for sulfur dioxide tolerance in Saccharomyces cerevisiae

open access: yesMicrobial Biotechnology, 2020
Summary Sulfiting agents are among the most widely used preservatives in the food and beverages industries, including winemaking, and one of their main functions is inhibition of spoilage microorganisms.
Eva Valero   +3 more
doaj   +1 more source

DNA damage in a solution containing copper(II) ions and ascorbic acid: Effect of the presence of sulfite

open access: yesBrazilian Journal of Pharmaceutical Sciences, 2021
Some antioxidant compounds have a pro-oxidant effect in the presence of transition metal ions, due to the reduction of Mn+ to M(n-1)+ with simultaneous formation of free radicals, which then promote DNA damage.
Thais Boscolo Requeijo   +2 more
doaj   +1 more source

Sulfite oxidation in Chlorobaculum tepidum

open access: yesFrontiers in Microbiology, 2011
The green sulfur bacterium Chlorobaculum tepidum is proposed to oxidize sulfide and elemental sulfur via sulfite as an obligate intermediate. The sulfite pool is predicted to be contained in the cytoplasm and be oxidized by the concerted action of AprBA,
Jesse eRodriguez   +5 more
doaj   +1 more source

Geochemical and Photochemical Constraints on S[IV] Concentrations in Natural Waters on Prebiotic Earth

open access: yesAGU Advances, 2023
Aqueous S[IV] species (HSO3−, SO32−) derived from volcanogenic atmospheric SO2 are important to planetary habitability through their roles in proposed origins‐of‐life chemistry and influence on atmospheric sulfur haze formation, but the early cycling of ...
Sukrit Ranjan   +8 more
doaj   +1 more source

The Removal of Antinutritional Factors and Toxic Substances from Corn Steep Liquer and Its Utilization

open access: yesLiang you shipin ke-ji, 2023
Corn steep liquer, a byproduct of corn starch production, is highly productive and nutritious, containing a large quantity of amino acids, B vitamins and growth-promoting factors, which plays an important role in fermentation engineering, feed additives ...
YIN Peng, DU Wen, LIU Hu-jun
doaj   +1 more source

Efficient metformin transformation in sulfite/UV process co-present with oxygen

open access: yesFrontiers in Environmental Science, 2023
UV/sulfite process without oxygen has been extensively explored and used for the degradation of many micro-pollutants. In the present work, a UV/sulfite process in the presence of oxygen was applied to degrade a widely used pharmaceutical compound ...
Yurong Gu   +5 more
doaj   +1 more source

Sulfite oxidizing enzymes [PDF]

open access: yesBiochimica et Biophysica Acta (BBA) - Proteins and Proteomics, 2007
Sulfite oxidizing enzymes are essential mononuclear molybdenum (Mo) proteins involved in sulfur metabolism of animals, plants and bacteria. There are three such enzymes presently known: (1) sulfite oxidase (SO) in animals, (2) SO in plants, and (3) sulfite dehydrogenase (SDH) in bacteria.
Changjian, Feng   +2 more
openaire   +2 more sources

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