Copper-complexed hydrogen sulfide in wine: Measurement by gas detection tubes and comparison of release approaches
Y Chen, JA Jastrzembski… - American Journal of …, 2017 - Am Soc Enol Viticulture
Recent work suggests that copper complexes may serve as a latent source of free hydrogen
sulfide (H2S) and other malodorous volatile thiols during wine storage. However …
sulfide (H2S) and other malodorous volatile thiols during wine storage. However …
Brine-releasable hydrogen sulfide in wine: Mechanism of release from copper complexes and effects of glutathione
RB Allison, GL Sacks - Journal of Agricultural and Food Chemistry, 2021 - ACS Publications
Copper–sulfhydryl complexes in wine can be disrupted by addition of brine to release free
hydrogen sulfide (H2S), and the resulting “brine-releasable H2S” is reported to correlate …
hydrogen sulfide (H2S), and the resulting “brine-releasable H2S” is reported to correlate …
[HTML][HTML] Formation of hydrogen sulfide in wine: Interactions between copper and sulfur dioxide
The combined synergistic effects of copper (Cu2+) and sulfur dioxide (SO2) on the formation
of hydrogen sulfide (H2S) in Verdelho and Shiraz wine samples post-bottling was studied …
of hydrogen sulfide (H2S) in Verdelho and Shiraz wine samples post-bottling was studied …
Reaction mechanisms of metals with hydrogen sulfide and thiols in model wine. Part 1: Copper-catalyzed oxidation
GY Kreitman, JC Danilewicz, DW Jeffery… - Journal of agricultural …, 2016 - ACS Publications
Sulfidic off-odors as a result of hydrogen sulfide (H2S) and low-molecular-weight thiols are
commonly encountered in wine production. These odors are usually removed by the …
commonly encountered in wine production. These odors are usually removed by the …
The effects of pH and copper on the formation of volatile sulfur compounds in Chardonnay and Shiraz wines post-bottling
The effects of pH and Cu 2+ treatment on the formation of volatile sulfur compounds (VSCs)
were investigated in Chardonnay and Shiraz wine samples. Four VSCs were significantly …
were investigated in Chardonnay and Shiraz wine samples. Four VSCs were significantly …
The effects of copper fining on the wine content in sulfur off-odors and on their evolution during accelerated anoxic storage
E Vela, P Hernández-Orte, E Franco-Luesma… - Food Chemistry, 2017 - Elsevier
Three different red wines with reductive character have been treated with two different doses
of copper sulfate (0.06 and 0.5 mg/L) and with a commercial copper-containing product at …
of copper sulfate (0.06 and 0.5 mg/L) and with a commercial copper-containing product at …
Copper (II)-mediated hydrogen sulfide and thiol oxidation to disulfides and organic polysulfanes and their reductive cleavage in wine: Mechanistic elucidation and …
GY Kreitman, JC Danilewicz, DW Jeffery… - Journal of agricultural …, 2017 - ACS Publications
Fermentation-derived volatile sulfur compounds (VSCs) are undesirable in wine and are
often remediated in a process known as copper fining. In the present study, the addition of …
often remediated in a process known as copper fining. In the present study, the addition of …
Analysis of free hydrogen sulfide in wines using gas detection tubes
RB Allison, A Montgomery… - American Journal of …, 2022 - Am Soc Enol Viticulture
Summary Goals: Hydrogen sulfide (H 2 S,“rotten egg” aroma) concerns winemakers due to
its contribution to sulfur-like off-aromas, and convenient methods are needed for quantitation …
its contribution to sulfur-like off-aromas, and convenient methods are needed for quantitation …
Evaluation of putative precursors of key 'reductive'compounds in wines post-bottling
Precursors to hydrogen sulfide (H 2 S), methanethiol (MeSH), ethanethiol (EtSH), and
dimethyl sulfide (DMS) were assessed in wines post-bottling, and the percent yield of VSCs …
dimethyl sulfide (DMS) were assessed in wines post-bottling, and the percent yield of VSCs …
Role of Elemental Sulfur in Forming Latent Precursors of H2S in Wine
JA Jastrzembski, RB Allison, E Friedberg… - Journal of agricultural …, 2017 - ACS Publications
The level of hydrogen sulfide (H2S) can increase during abiotic storage of wines, and
potential latent sources of H2S are still under investigation. We demonstrate that elemental …
potential latent sources of H2S are still under investigation. We demonstrate that elemental …
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