What reactions require oxygen to impart flavour?
Oxygen will oxidize food, and oxidized food is a sign of degradation (brown bananas, brown apple ...)
The only thing that comes to mind with oxygen, is its use in wine making.
&quot;In some wines, oxidation is used to create an effect or to ensure that the wine conforms to a particular style. In others, it’s a misstep that leads to a spoiled bottle. And yet oxidation, in which juice comes into contact with oxygen, is an unavoidable part of the winemaking process.&quot;