Do not convert nitrogen or oxygen discussions into one-direction guarantees. The diacetyl-to-acetoin reaction is described as decarboxylation and warrants mechanism checking. The broad characterization of all brewing/wine yeasts and several cross-beverage reference assignments are overgeneralized.
Yeast strain, nutrients, oxygen, temperature and wort treatment affect ester, higher-alcohol, aldehyde and sulfur-compound profiles. Trace abundance and sensory impact are different questions.
Sections 4.2–4.2.2
Sections 4.2–4.2.2
Checked against complete publisher HTML September 8. Verified means fidelity to the source and explicit cautions, not endorsement of disputed source claims. Actual figures and original-file preservation remain pending.
No access → No access
Evidence
Yeast strain, nutrients, oxygen, temperature and wort treatment affect ester, higher-alcohol, aldehyde and sulfur-compound profiles. Trace abundance and sensory impact are different questions.
Location and context
Sections 4.2–4.2.2 in the publisher review. This is a paraphrase, not a quotation or independent replication.
Annotation
Do not convert nitrogen or oxygen discussions into one-direction guarantees. The diacetyl-to-acetoin reaction is described as decarboxylation and warrants mechanism checking. The broad characterization of all brewing/wine yeasts and several cross-beverage reference assignments are overgeneralized.
Traceability
Verified for fidelity to the accessed HTML. Actual figures and complete original-file preservation remain unresolved.