Key Changes in Wine Aroma Active Compounds during Bottle Storage of Spanish Red Wines under Different Oxygen Levels
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- 作者：Vicente Ferreira ; M贸nica Bueno ; Ernesto Franco-Luesma ; Laura Culler茅 ; Purificaci贸n Fern谩ndez-Zurbano
- 刊名：Journal of Agricultural and Food Chemistry
- 出版年：2014
- 出版时间：October 15, 2014
- 年：2014
- 卷：62
- 期：41
- 页码：10015-10027
- 全文大小：306K
- ISSN：1520-5118
文摘
Samples from 16 Spanish red wines have been stored for 6 months at 25 掳C under different levels of oxygen (0鈥?6 mg/L). Amino acids, metals, and phenolic compounds were analyzed and related to the production or depletion of key oxidation- and reduction-related aroma compounds. Oxidation brings about sensory-relevant increases in Strecker aldehydes, 1-octen-3-one, and vanillin. Formation of Strecker aldehydes correlates to the wine content on the corresponding amino acid precursor, Zn, and caffeic acid ethyl ester and negatively to some flavonols and anthocyanin derivatives. Formation of most carbonyls correlates to wine-combined SO2, suggesting that part of the increments are the result of the release of aldehydes forming bisulfite combinations once SO2 is oxidized. Methanethiol (MeSH) and dimethylsulfide (DMS), but not H2S levels, increase during storage. MeSH increments correlate to methionine levels and proanthocyanidins and negatively to resveratrol and aluminum. H2S, MeSH, and DMS levels all decreased with oxidation, and for the latter two, there are important effects of Mn and pH, respectively.