关于桃子和杏仁混合汁乳酸发酵过程中风味化合物变化的机制的研究
Yao Zhao1, Ruoqing Liu1, Ying Mu1
1School of Life Science and Technology, Xinjiang University, Urumqi 830046, China.
Foods (Basel, Switzerland)
|December 17, 2024
概括
乳酸细菌发酵通过改变挥发性化合物和代谢物,显著改善了桃子和杏仁混合汁的味道. 这项研究分析了关键的风味化合物和代谢途径,为增强的发酵果汁提供了基础.
科学领域:
- 食品科学 食品科学 食品科学
- 代谢学 代谢学 代谢学
- 微生物学 微生物学
背景情况:
- 果汁容易受到微生物破坏和风味退化的影响.
- 使用乳酸细菌 (LAB) 的发酵可以增强果汁的风味和营养成分.
- 桃子和杏仁混合汁 (PAMJ) 为探索发酵影响提供了一个独特的基质.
研究的目的:
- 研究LAB混合发酵对PAMJ挥发性和非挥发性代谢物的影响.
- 为了识别关键的风味化合物和在发酵过程中改变的代谢途径.
- 为开发高质量的发酵果汁建立理论基础.
主要方法:
- 头部空间固相微提取气色谱-质谱 (HS-SPME-GC-MS) 用于挥发性化合物分析.
- 液体染色学-质谱学 (LC-MS) 用于非挥发性代谢物分析.
- 基因和基因组的京都百科全书 (KEGG) 对代谢洞察的途径分析.
主要成果:
- 确定了185种挥发性化合物,其中尤金醇,甲和g-decalactone显示出显著的变化.
- 通过LC-MS检测到1846种不同的代谢物,包括564种上调和1282种下调.
- 发酵显著改变了氨基酸和糖类代谢,特别是粉和糖路径,增强了整体果汁的味道.
结论:
- 实验室发酵有效地提高了PAMJ的风味特征.
- 代谢分析揭示了挥发性和非挥发性化合物及其代谢途径的显著变化.
- 这项研究为优化发酵果汁生产提供了科学基础.
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