12,382
edits
Sulfite: Difference between revisions
no edit summary
No edit summary Tags: Mobile edit Mobile web edit |
No edit summary Tags: Mobile edit Mobile web edit |
||
| Line 27: | Line 27: | ||
===Natural Sulfite=== | ===Natural Sulfite=== | ||
Sulfite is produced naturally by yeast during fermentation, and may be present at the end of fermentation in some amount, usually less than 30ppm although some strains can produce vastly higher amounts.<ref name="Rotter">Rotter, Ben. [http://www.brsquared.org/wine/Articles/SO2/SO2.htm "Sulphur Dioxide."] ''Improved Winemaking.'' 2011.</ref><ref name="Werner">Werner, M., Rauhut, D., Cottereau, P. [https://www.infowine.com/intranet/libretti/libretto7646-01-1.pdf "Yeasts and Natural Production of Sulphites."] ''Internet Journal of Enology and Viticulture.'' 2009 N12/3</ref> Yeast produce sulfite by reducing [[sulfate]], although the concentration of sulfate may have only a minor effect on the amount of sulfite produced, depending on the yeast strain. | Sulfite is produced naturally by yeast during fermentation, and may be present at the end of fermentation in some amount, usually less than 30ppm although some strains can produce vastly higher amounts.<ref name="Rotter">Rotter, Ben. [http://www.brsquared.org/wine/Articles/SO2/SO2.htm "Sulphur Dioxide."] ''Improved Winemaking.'' 2011.</ref><ref name="Werner">Werner, M., Rauhut, D., Cottereau, P. [https://www.infowine.com/intranet/libretti/libretto7646-01-1.pdf "Yeasts and Natural Production of Sulphites."] ''Internet Journal of Enology and Viticulture.'' 2009 N12/3</ref><ref name=lundmn>Lund MN, Andersen ML. [https://www.tandfonline.com/doi/abs/10.1094/ASBCJ-2011-0620-01 Detection of Thiol Groups in Beer and Their Correlation with Oxidative Stability.] ''J Am Soc Brew Chem.'' 2011;69(3):163–169.</ref> Yeast produce sulfite by reducing [[sulfate]], although the concentration of sulfate may have only a minor effect on the amount of sulfite produced, depending on the yeast strain. | ||
Yeast also produce compounds during fermentation that bind to sulfite, decreasing the proportion of free SO<sub>2</sub>. | Yeast also produce compounds during fermentation that bind to sulfite, decreasing the proportion of free SO<sub>2</sub>. | ||