Results 21 to 30 of about 11,933 (259)

The Renaissance of Alkali Metabisulfites as SO2 Surrogates

open access: yesSynOpen, 2021
The upsurge of interest in the development of methodologies for the construction of sulfur-containing compounds via the use of expedient reagents has established sustainable tools in organic chemistry. This review focuses on sulfonylation reactions using
Ashish Kumar Sahoo   +3 more
doaj   +1 more source

Electrochemical/I– Dual-Catalyzed Access to Sulfonated Pyrazoles under External Oxidant-Free Conditions

open access: yesSynOpen, 2023
An electrochemical/I– dual-catalyzed access to sulfonated pyrazoles from pyrazolones and sodium sulfites under external oxidant-free conditions has been developed.
Jing Ma   +9 more
doaj   +1 more source

Color Characterization of Bordeaux Red Wines Produced without Added Sulfites

open access: yesFoods, 2023
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 ...
Edouard Pelonnier-Magimel   +4 more
doaj   +1 more source

Sulfite removal from flue-gas desulfurization residues of coal-fired power plants: Oxidation experiments and kinetic parameters estimation

open access: yesEnergy Reports, 2021
Semi-dry flue-gas desulfurization (FGD) processes abate 99% of atmospheric emissions of sulfur dioxide from coal-fired power plants at the expense of producing daily tones of solid FGD residues containing sulfites, sulfates, carbonates and hydroxides of ...
Igor Nunes Rodrigues   +2 more
doaj   +1 more source

Use of Oenological Tannins to Protect the Colour of Rosé Wine in a Bioprotection Strategy with Metschnikowia pulcherrima

open access: yesFoods, 2023
Although bioprotection is now recognised as an alternative to SO2 for limiting microbial spoilage, it does not guarantee protection against oxidation. This limits its application, more specifically for rosé winemaking.
Maëlys Puyo   +6 more
doaj   +1 more source

Antioxidants versus Food Antioxidant Additives and Food Preservatives

open access: yesAntioxidants, 2019
Natural and processed foods are fragile and can become unpalatable and/or rotten. The processed food industry uses preservatives to enable distribution, even to different continents, and to extend the useful life of their products.
Rafael Franco   +2 more
doaj   +1 more source

Rapid determination of sulfites by microextraction-ion chromatography in red wine

open access: yesShipin yu jixie, 2023
Objective: In view of the improvement of the national standard method of distillation pretreatment, combined with the advantages of ion chromatography, a rapid determination of sulfite by microextract-ion chromatography in red wine was established ...
WANG Zhi-hong   +4 more
doaj   +1 more source

Tailoring Microstructure in Copper‐Based Conductive Metal–Organic Frameworks for Enhanced Chemiresistive Sensing and Uptake of Sulfur Dioxide

open access: yesAdvanced Functional Materials, EarlyView.
Precursor‐ and solvent‐mediated synthesis yields four Cu3(HHTP)2 morphologies with distinct physicochemical, sorption, and sensing properties toward SO2. Uptake capacities correlate with BET surface area, while sensing performance scales with particle aspect ratio.
Patrick Damacet   +5 more
wiley   +1 more source

Sulfites inhibit the growth of four species of beneficial gut bacteria at concentrations regarded as safe for food. [PDF]

open access: yesPLoS ONE, 2017
Sulfites and other preservatives are considered food additives to limit bacterial contamination, and are generally regarded as safe for consumption by governmental regulatory agencies at concentrations up to 5000 parts per million (ppm).
Sally V Irwin   +4 more
doaj   +1 more source

EXAMINATION OF RADIOACTIVITY AND PRESENCE OF ADDITIVES IN WINE FROM TIKVES REGION

open access: yesJournal of Agriculture and Plant Sciences, 2022
In Republic of North Macedonia, the production of grapes and wine has been known since ancient times. Many grape varieties are grown in this region, but one of the most important and largest regions for wine production is the Tikves region.
Ana Angelovska   +4 more
doaj   +1 more source

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