深入分析高地大麦的动态发酵过程:主要的物理化学因素,关键的味道和主导的微生物
Yan Li1, Aixia Wang1, Bin Dang2
1Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing Ministry of Agriculture, Beijing 100193, China.
Food research international (Ottawa, Ont.)
|January 15, 2024
概括
这项研究揭示了高原大麦发酵中的关键物理化学因素,挥发性化合物和微生物. 乳酸菌和乙菌对口味的发展和生产质量至关重要.
科学领域:
- 食品科学 食品科学 食品科学
- 微生物学 微生物学
- 发酵技术的发酵技术
背景情况:
- 高地大麦是一种来自青海-西藏高原的新型固态发酵产品.
- 了解其发酵动态对于提高质量至关重要.
研究的目的:
- 为了研究发酵过程中的物理化学变化.
- 为了识别关键的风味挥发性化合物.
- 为了确定占主导地位的微生物及其与味道的相关性.
主要方法:
- 监测物理化学参数 (减糖,pH,氨基酸).
- 气色谱-质谱 (GC-MS) 用于挥发性化合物分析.
- 16S rRNA基因测序用于微生物社区概况.
主要成果:
- 与乳酸菌和菌代谢相关的物理化学变化.
- 确定了35种挥发性化合物,包括,酒精和有机酸,其中特定的化合物如异氨基酸是关键的芳香贡献者.
- 乳杆菌主导着酒精发酵,而乳杆菌和菌主导着酸发酵,与关键的挥发性化合物有显著的相关性.
结论:
- 乳酸菌和菌在高地大麦发酵和风味形成中发挥着至关重要的作用.
- 这项研究为提高高地大麦的生产质量提供了见解.
相关概念视频
Fermentation
114.2K
Most eukaryotic organisms require oxygen to survive and function adequately. Such organisms produce large amounts of energy during aerobic respiration by metabolizing glucose and oxygen into carbon dioxide and water. However, most eukaryotes can generate some energy in the absence of oxygen by anaerobic metabolism.
Fermentation is a type of metabolic process that occurs in the absence of oxygen, where organic molecules such as glucose are broken down to produce energy. During this process, the...
Fermentation is a type of metabolic process that occurs in the absence of oxygen, where organic molecules such as glucose are broken down to produce energy. During this process, the...
114.2K
Fates of Pyruvate
8.5K
Pyruvate is the end product of glycolysis, where glucose is oxidized to pyruvate, simultaneously reducing NAD+ to NADH. Two molecules of ATP are also produced by substrate-level phosphorylation.
In aerobic organisms, pyruvate is metabolized via the citric acid cycle to produce reduced coenzymes NADH and FADH2. These coenzymes are then oxidized in the electron transport chain to produce ATP and, in the process, regenerate the NAD+ and FAD. As seen in some cell types and organisms, fermentation...
In aerobic organisms, pyruvate is metabolized via the citric acid cycle to produce reduced coenzymes NADH and FADH2. These coenzymes are then oxidized in the electron transport chain to produce ATP and, in the process, regenerate the NAD+ and FAD. As seen in some cell types and organisms, fermentation...
8.5K


