来自葡萄的多糖提取物富含Rhamnogalacturonans-II作为白酒风味化合物的潜在调节剂
Diego Canalejo1, Leticia Martínez-Lapuente1, Belén Ayestarán1
1Instituto de Ciencias de la Vid y del Vino (Universidad de la Rioja, Gobierno de La Rioja y CSIC), Ctra. De Burgos Km 6, 26007 Logroño, Spain.
Molecules (Basel, Switzerland)
|September 28, 2023
概括
红酒和副产品中的葡萄衍生的多糖有效调节了白酒的风味,改善了香气并减少了度. 这些发现凸显了葡萄酒造残留物对葡萄酒质量提升的潜在利用.
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
- 生物技术是生物技术.
背景情况:
- 众所周知,曼诺蛋白质会影响葡萄酒的质量,但由于其在商业上无法获得,葡萄中衍生出的多糖类研究较少.
- 葡萄酒制造产生富含多糖的副产品,为葡萄酒生产提供了新的应用潜力.
研究的目的:
- 评估葡萄衍生多糖的有效性,特别是葡萄末多糖 (WPP) 和蒸洗残留多糖 (DWRP),作为细化剂.
- 评估这些多糖类对白酒风味的影响,包括挥发性化合物,和感官属性.
- 探索蒸洗残留物作为功能性葡萄酒添加剂来源的潜在利用.
主要方法:
- 纯化WPP和DWRP被用作白葡萄酒中的细化剂,与商业的曼诺蛋白 (CMs) 一起作为对照剂.
- 对化合物和挥发性成分的分析是在瓶装后的1个月和12个月进行的.
- 进行了感官分析,以评估对葡萄酒质量的整体影响.
主要成果:
- 富含甲基甲基氨酸-II的WPP和DWRP,有效调节葡萄酒的香气和度.
- 葡萄酒香味的改善与挥发性家族的增加相关,不包括较高的酒精和挥发性酸.
- 收缩和苦味的减少与减少的普兰托西亚尼丁含量和聚合有关.
- 蛋白质含量较高的多糖提取物显示出更好的挥发性化合物保留,DWRP产生了优越的整体芳香.
结论:
- 葡萄衍生的多糖,特别是蒸洗残留的多糖,显示显著的潜力,作为自然精细剂调节白葡萄酒的风味.
- 葡萄酒造副产品的价值化提供了一个有前途的途径,提供了功能性多糖的可持续来源.
- 这项研究首次描述了蒸洗残留多糖的使用,以提高葡萄酒的质量.
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