10 Questions
Name two effects of oxygen exposure on wine quality.
Lowering of quality or enhancement
What are the two types of oxidation in wine?
Enzymatic oxidation and chemical oxidation
Name two substrates for oxidation in must and wine.
Phenolic compounds and ascorbic acid
What is the structure produced during the oxidation reaction?
Kenone
What does kenone do during oxidation?
Traps volatile thiols and masks their aromatic aromas
Which compound can be a substitute for oxygen in must and wine?
Ascorbic acid
What is the effect of oxidation on the aroma of wine?
Causes loss of fruitiness and general aroma
Which type of oxidation occurs in the juice and is much faster?
Enzymatic oxidation
What is the initial form of oxygen in wine before it starts being consumed?
Dissolved O2
What color does white wine turn due to oxidation?
Brown
Test your knowledge on the effects of oxidation on wine aroma, color, and quality in this quiz. Learn about the different reactions and processes involved in wine oxidation and how it can impact the overall taste and experience.
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