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在没有添加硫酸盐的情况下生产的波尔多红葡萄酒的颜色特征

Edouard Pelonnier-Magimel^1,2, Kléopatra Chira^1,2, Pierre-Louis Teissèdre^1,2

¹University of Bordeaux, Bordeaux INP, INRAE, OENO, UMR 1366, ISVV, F-33140 Villenave d'Ornon, France.

Foods (Basel, Switzerland)

|June 28, 2023

概括

没有二氧化硫 (SO2) 的葡萄酒由于聚合物颜料的增加而呈现出更深的紫色和更深的紫色. 这项研究描述了这些天然葡萄酒的特点,揭示了与含有SO2的葡萄酒相比,颜色和色素成分的差异.

科学领域:

葡萄酒学和葡萄酒化学
食品科学与技术食品科学与技术

背景情况:

葡萄酒制作中的"自然性"概念正在增长,导致使用最小投入的葡萄酒,包括减少或不使用二氧化硫 (SO2).
这些低投入的葡萄酒在科学文献中代表性不足,需要详细的描述,特别是关于它们的感官属性,如颜色.

研究的目的:

调查二氧化硫 (SO2) 缺失对波尔多红葡萄酒颜色特性的影响.
分析含有和没有添加SO2的葡萄酒中的聚合物颜料的成分.

主要方法:

使用CIELab和颜色强度 (CI) 测量进行色度分析.
通过使用二极管阵列检测和电子喷射电离四极体飞行时间质谱法 (UPLC-DAD/ESI QTof) 的超高性能液态染色学量化聚合物颜料.
在含有和不含有SO2的葡萄酒中,以乙烯为桥梁的聚合物桑宁的比较.

主要成果:

与含有SO2的葡萄酒相比,没有SO2的葡萄酒显示出明显更深的颜色和更强烈的紫色调.
在缺乏SO2的葡萄酒中发现了高度的聚合物颜料,特别是那些通过乙烯基桥联系在一起的颜料.
在含有和不含有SO2的葡萄酒之间,没有观察到由乙基桥结合的聚合物宁的显著差异.

结论:

葡萄酒制作中缺少SO2会影响葡萄酒的颜色,导致葡萄酒的色调变暗,紫色增加.
乙烯基桥在无二氧化葡萄酒中形成特定的聚合物颜料中发挥作用.
桑宁和酸在与乙甲反应形成乙烯基桥的过程中表现出不同的亲和力,从而影响葡萄酒的色彩稳定性.

关键词:

塞拉巴布的天空在 UPLC-DAD/ESI QTof 的乙烯基基桥梁的使用聚合物色素是一种聚合物色素.葡萄酒的颜色葡萄酒的颜色没有硫酸盐的葡萄酒.

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