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首页> 外文期刊>Wood Science and Technology >Chemical compounds released from five different woods used to make barrels for aging wines and spirits: volatile compounds and polyphenols
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Chemical compounds released from five different woods used to make barrels for aging wines and spirits: volatile compounds and polyphenols

机译:从用于制造陈酿葡萄酒和烈酒的酒桶的五种不同木材中释放出的化学化合物:挥发性化合物和多酚

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摘要

Aging wine and spirits in wooden barrels is an industrial process used to stabilize color and improve limpidity; many compounds are released from the wood and enrich the sensorial characteristics of the product. The main wood species used for making barrels is oak, but in particular cases also acacia, chestnut, cherry and mulberry. In this work, polyphenols contained in the extracts of these wood species obtained by solutions of 50% hydroalcohol as well as a model wine were studied and compared with the extracts from oak. The hydroalcoholic extracts of chestnut and mulberry had higher total polyphenols, followed by cherry, acacia and oak, respectively. The oak model wine extract had the highest percentage of polyphenols extractable by the wine, followed by chestnut, acacia, cherry and mulberry, respectively. Chestnut extracts had the highest percentage of oxidizable compounds, followed by acacia, oak, mulberry and cherry. The GC/MS-EI profile of 50% hydroalcoholic extracts revealed as principal volatiles several benzene compounds containing a guaiacol residue, and high contents of C_6-C_(18) fatty acids. To our knowledge, this is the first study reporting on polyphenolic and complete volatile compounds characterization of these woods for oenological purposes.
机译:在木桶中陈酿葡萄酒和烈性酒是一种工业过程,用于稳定颜色和改善透明度。许多化合物从木材中释放出来,丰富了产品的感官特性。用来制造桶的主要木材种类是橡木,但在特定情况下,阿拉伯胶,栗子,樱桃和桑树也是如此。在这项工作中,研究了通过50%的水醇溶液和模型酒获得的这些木材物种的提取物中所含的多酚,并与橡木提取物进行了比较。栗子和桑的水醇提取物具有较高的总多酚含量,其次是樱桃,阿拉伯树胶和橡木。橡木模型的葡萄酒提取物中可提取的多酚含量最高,其次是栗子,阿拉伯树胶,樱桃和桑树。栗子提取物的可氧化化合物百分比最高,其次是阿拉伯树胶,橡木,桑树和樱桃。 50%的水醇提取物的GC / MS-EI谱图显示,含有愈创木酚残基和高含量的C6-C_(18)脂肪酸的几种苯化合物为主要挥发物。据我们所知,这是第一个报告,用于酿酒业,对这些木材的多酚和完整挥发性化合物进行了表征。

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  • 来源
    《Wood Science and Technology》 |2009年第6期|375-385|共11页
  • 作者单位

    CRA, Centra di Ricerca per la Viticoltura, Laboratorio Chimico, Viale XXVIII aprile 26, 31015 Conegliano (TV), Italy Facolta di Agraria, Universita degli Studi di Padova, Viale dell'Universita 16, 35020 Legnaro (PD), Italy;

    Facolta di Agraria, Universita degli Studi di Padova, Viale dell'Universita 16, 35020 Legnaro (PD), Italy;

    CRA, Centra di Ricerca per la Viticoltura, Laboratorio Chimico, Viale XXVIII aprile 26, 31015 Conegliano (TV), Italy Facolta di Agraria, Universita degli Studi di Padova, Viale dell'Universita 16, 35020 Legnaro (PD), Italy;

    CRA, Centra di Ricerca per la Viticoltura, Laboratorio Chimico, Viale XXVIII aprile 26, 31015 Conegliano (TV), Italy;

    CRA, Centra di Ricerca per la Viticoltura, Laboratorio Chimico, Viale XXVIII aprile 26, 31015 Conegliano (TV), Italy Facolta di Agraria, Universita degli Studi di Padova, Viale dell'Universita 16, 35020 Legnaro (PD), Italy;

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