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. 2023 Sep 8;28(18):6522. doi: 10.3390/molecules28186522

Table 1.

Alteration of volatile and non-volatile compounds during bottle aging.

Compounds Evolution During Bottle Aging References
Increase Decrease
Volatile Volatile Sulphide H2S may increase or decrease [11,22,50,51]
MeSH may increase or decrease [55]
EtSH
Higher Alcohols 3-methylbutanol generally stable, but small amounts may decrease [24]
isoamyl alcohol stable [56]
2-phenylethanol stable
isobutanol stable [12]
Hexanol stable
cis-3-hexen-1-ol stable
1,3-butanediol steadily decreased [12,57]
Aldehydes acetaldehyde * [7,39]
formaldehyde increase when oxidation is out of balance [7,32]
2-methylbutyral
phenylacetaldehyde
isobutyral
isoamental
Esters isoamyl acetate * [56]
hexyl acetate *
cis-3-hexyl acetate *
isobutyl acetate *
2-phenylethyl acetate *
ethyl hexanoate * [12,57,58]
octanoate *
decanoate *
octanoic *
decanoic *
hexanoic *
3-mercaptohexanol acetate * [56]
nonalactone * [65]
γ-hexalactone can be detected in heated wines [66]
γ-decalactone
lactones overall stable [69]
Methoxypyrazines 3-isobutyl-2-methoxypyrazine * [14,72]
3-isopropyl-2-methoxypyrazine *
sec-butyl-2-methoxypyrazine *
Other Volatile Compounds volatile phenols increase or decrease [15,73]
hexanoic * [12]
decanoic *
octanoic *
Non-volatile Tannins (+)-catechin * [74]
(−)-epicatechin *
Tartaric Acid * [15]
Polysaccharides Mannoproteins (MP) * [36,75]