关于葡萄酒加工多边形树中寡糖化合物的分离,鉴定和质量控制方法的研究
Hong Guo1, Haonan Wu1,2, Rui Yao1,2
1National Institutes for Food and Drug Control, Beijing 102629, China.
Foods (Basel, Switzerland)
|February 13, 2026
概括
这项研究确定了包括二果糖无水化物 (DFAs) 在内的关键寡糖化合物,作为葡萄酒加工的多角树根中的质量标志物. 增加的DFA水平与加工引起的颜色变化相关,这表明它们在质量控制中的使用.
科学领域:
- 植物化学 植物化学
- 食品科学 食品科学 食品科学
- 分析化学 分析化学
背景情况:
- 多边形树根 (Polygonati Rhizoma,简称WPR) 是一种传统的草药.
- 蒸汽和干燥等加工方法显著改变了WPR的化学成分和质量.
- 确定特定的质量标记对于标准化至关重要.
研究的目的:
- 为了在葡萄酒加工的多角茎 (WPR) 中识别寡糖类质量标记物.
- 为了调查WPR加工过程中糖成分的变化.
- 为了将糖成分的变化与加工的WPR片的颜色相关联.
主要方法:
- 提取水,乙醇沉,以及用于分离寡糖的准备性液体色谱.
- 核磁共振 (NMR) 光谱用于结构识别和纯度评估 (>93%).
- 色度分析 (Eab*) 和总降解糖,DFA III和DFA I的量化.
主要成果:
- 确定了七种寡糖类:DFA III,DFA VII,DFA II,一种新的二果糖无水化物,DFA I,糖和1-糖.
- 化合物1-5 (DFA III,DFA VII,DFA II,新型DFA,DFA I) 刚从WPR中分离出来,并增加了后期加工.
- 在加工过程中,在增加的总色差 (Eab*) 和糖成分,特别是DFA III和DFA I的变化之间观察到强烈的相关性.
- 与原材料相比,DFA III和DFA I水平在商业WPR中明显高于原材料.
结论:
- 二果糖无水化物 (DFAs),特别是DFA III和DFA I,是葡萄酒加工多角茎的潜在质量标志物.
- 在加工过程中,WPR切片的逐渐变黑与其寡糖样中的变化密切相关.
- DFA III和DFA I的量化可以帮助评估WPR的加工程度和质量.
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