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首页> 外文期刊>Journal of Agricultural and Food Chemistry >Vineyard and Fermentation Studies To Elucidate the Origin of 1,8-Cineole in Australian Red Wine
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Vineyard and Fermentation Studies To Elucidate the Origin of 1,8-Cineole in Australian Red Wine

机译：葡萄园和发酵研究，以阐明澳大利亚红酒中1,8-Cineole的来源

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摘要

Preliminary investigations revealed that the proximity of Eucalyptus trees to grapevines can directly influence the concentration of the aroma compound 1,8-cineole present in the corresponding red wines. For two different vineyards, the closer the grapevines were to the trees, the greater was the amount of i,8-cineoIe in the wanes elaborated from those grapes. This led us to carry out further studies to quantify the levels of 1,8-cineole found in grape berries, leaves, and stems at set distances from Eucalyptus trees over multiple vintages. Generally, the highest concentration of 1,8-cineole was found in the grapevine leaves, followed by grape stems and then grapes. In each sample type, we observed greater concentrations of 1,8-cineole in samples closer to the trees. Various fermentation treatments carried out with Shiraz grapes showed that matter other than grapes (MOG, e.g., Eucalyptus or grape leaves) could contribute significant amounts of 1,8-cineole to the finished wines. These studies confirmed that vineyard position and winemaking conditions can determine the 1,8-dneoIe concentration in red wine. The fermentation study also showed for the first time that the concentration of rotundone in red wine can be strongly influenced by grapevine leaves and stems in the ferment.
机译：初步调查显示，桉树与葡萄树之间的距离会直接影响相应红酒中存在的芳香化合物1,8-桉树脑的浓度。对于两个不同的葡萄园，葡萄藤离树木越近，用这些葡萄精心制作的葡萄叶片中的8,8烟碱含量就越大。这使我们开展了进一步的研究，以量化多个年份中距桉树一定距离的葡萄浆果，树叶和茎中发现的1,8-桉树脑的水平。通常，在葡萄叶中发现最高浓度的1,8-桉树脑，其​​次是葡萄茎，然后是葡萄。在每种样品类型中，我们观察到靠近树木的样品中1,8-桉树脑的浓度更高。使用设拉子（Shiraz）葡萄进行的各种发酵处理表明，葡萄以外的物质（MOG，例如桉树或葡萄叶）可以为成品葡萄酒贡献大量的1,8-桉树脑。这些研究证实，葡萄园的位置和酿酒条件可以决定红葡萄酒中1,8浓度的浓度。发酵研究还首次表明，红酒中罗丹酮的浓度会受到发酵中葡萄叶和茎的强烈影响。

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