I+D+I Industrial Tonelera Navarra SL (INTONA), 31522 Monteagudo, Navarra, Spain.
Anal Chim Acta. 2012 Jun 30;732:83-90. doi: 10.1016/j.aca.2012.01.061. Epub 2012 Feb 8.
Polyphenolic composition of two Syrah wines aged during 6 or 12 months in medium toasting acacia and oak 225L barrels was studied by LC-DAD-ESI/MS. A total of 43 nonanthocyanic phenolic compounds were found in all wines, and other 15 compounds only in the wines from acacia barrels. Thus, the nonanthocyanic phenolic profile could be a useful tool to identify the wines aged in acacia barrels. Among all of them the dihydrorobinetin highlights because of its high levels, but also robinetin, 2,4-dihydroxybenzaldehyde, a tetrahydroxydihydroflavonol, fustin, butin, a trihydroxymethoxydihydroflavonol and 2,4-dihydroxybenzoic acid were detected at appreciable levels in wines during aging in acacia barrels, and could be used as phenolic markers for authenticity purposes. Although longer contact time with acacia wood mean higher concentrations of phenolic markers found in wines, the identification of these wines will also be easy after short aging times due the high levels reached by these compounds, even after only 2 months of aging.
通过 LC-DAD-ESI/MS 研究了在中度烘烤的金合欢和橡木 225L 桶中陈酿 6 或 12 个月的两种西拉葡萄酒的多酚组成。在所有葡萄酒中发现了 43 种非花青素酚类化合物，而其他 15 种化合物仅存在于金合欢桶中的葡萄酒中。因此，非花青素酚类谱可以作为识别在金合欢桶中陈酿的葡萄酒的有用工具。在所有这些化合物中，二氢根皮素因其高含量而引人注目，但在金合欢桶中陈酿的葡萄酒中还检测到根皮素、2,4-二羟基苯甲醛、四羟基二氢黄酮醇、福斯汀、布廷、三羟甲氧基二氢黄酮醇和 2,4-二羟基苯甲酸，这些化合物的含量在陈酿过程中达到了可观的水平，可作为真实性目的的酚类标志物。尽管与金合欢木材的更长接触时间意味着葡萄酒中发现的酚类标志物浓度更高，但由于这些化合物的高含量，即使在仅陈酿 2 个月后，这些葡萄酒的识别也将变得容易。
