在生产半甜葡萄酒的两种木品种的加工前后变化
Yinyin Lian1,2,3, Yingmei Meng1,2, Mei Wang4
1School of Food Science, Southwest University, 400700 Chongqing, China.
Food chemistry: X
|July 23, 2025
概括
在葡萄酒中发酵,通过增加抗氧化能力和酸度,同时改变关键化合物,提高它们的价值. 这一过程将收获后的废物转化为具有改善风味配置的有价值产品.
科学领域:
- 食品科学 食品科学 食品科学
- 农业化学 农业化学
- 生物技术是生物技术.
背景情况:
- 树具有很高的营养价值,但在收获后遭受重大损失.
- 树葡萄酒生产提供了一种方法来增加树的附加值,减少浪费.
研究的目的:
- 为了研究发酵对两个树品种的物理化学性质,抗氧化能力和挥发性/非挥发性化合物的影响.
- 为了确定关键的化合物和标记物,负责在树葡萄酒发酵过程中的芳香变化.
主要方法:
- 在发酵前后对物理化学性质 (酸度,可溶性固体,糖,酸,氨基酸) 的比较分析.
- 使用已建立的测定方法评估抗氧化能力.
- 气色谱-质谱 (GC-MS) 用于挥发性化合物分析.
- 在标记物识别中进行正交部分最小方程区分分析 (OPLS-DA).
主要成果:
- 发酵显著增加了可定位的酸度和抗氧化能力.
- 溶解固体,总糖,酸和酸水平在发酵后下降.
- 酸,酸和酸的含量增加,而总氨基酸的含量减少.
- 确定了67种挥发性化合物,其中28种对香味有显著的贡献;13个关键标志物区分了发酵前和后的阶段.
结论:
- 树葡萄酒发酵改变了关键的物理化学和生物化学特征,增强了抗氧化能力和酸度.
- 特定的有机酸和挥发性化合物在木葡萄酒的芳香特征中起着至关重要的作用.
- 这些发现为优化木葡萄酒生产及其工业应用提供了宝贵的见解.
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