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Fermentation is a crucial anaerobic metabolic process that enables microbes to derive energy from sugar without relying on oxygen or an electron transport chain. This process is fundamental to various biological and industrial applications and is classified based on the metabolic products generated.Role of Pyruvate in FermentationPyruvate and its derivatives serve as key electron acceptors in fermentative pathways. The oxidation of NADH to regenerate NAD+ is essential for the continuation of...
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Osmolarity is the measure of solute concentration in a solution. It plays a critical role in determining water availability for organisms. Water moves across semipermeable membranes through osmosis, flowing from regions of lower solute concentration (more dilute) to regions of higher solute concentration (more concentrated).In high-solute environments, microbial cells lose water, leading to dehydration and inhibited growth. The extent to which water is available to microbes in such environments...
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Factors Influencing Microbial Growth: pH01:29

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Microorganisms are classified as acidophiles, neutrophiles, or alkaliphiles based on their pH growth preferences, reflecting their adaptations to specific environments. Maintaining a stable intracellular pH is critical for macromolecular stability and enzymatic activity, which can be challenged by external pH variations.Neutrophiles, such as Escherichia coli, grow optimally between pH 5.5 and 8.0. These microorganisms inhabit neutral or slightly acidic environments and employ mechanisms like...
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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.
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Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
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环境因素驱动的微生物相互作用调节了多微生物发酵酒精饮料中的风味代谢:一个动态合框架

Enxiang Zong1, Jianping Yang2, Jiaojiao Zhang3

  • 1School of Food and Health, Beijing Technology and Business University, Beijing 100048, China.

Food research international (Ottawa, Ont.)
|January 9, 2026
PubMed
概括

环境因素驱动微生物相互作用,塑造发酵饮料中的风味. 这种动态的合框架,在诸如白酒和葡萄酒等饮料中观察到,指导着风味优化和强大的初始培养.

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环境因素 环境因素发酵的酒精饮料 发酵的酒精饮料调味法规调味法规的调味法规微生物相互作用多微生物系统的多微生物系统

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科学领域:

  • 食品科学和微生物学
  • 生物技术是生物技术.
  • 感官科学 感官科学

背景情况:

  • 发酵酒精饮料由于复杂的微生物代谢,具有多种不同的感官特征.
  • 环境因素显著影响微生物相互作用和味道代谢物合成,但确切的机制尚不清楚.
  • 了解这些联系对于优化发酵饮料生产至关重要.

研究的目的:

  • 在环境驱动的多微生物发酵中,系统地讨论微生物相互作用的调节机制,这些机制控制了环境驱动的多微生物发酵中的风味形成.
  • 为了阐明一个动态合框架:环境因素-微生物相互作用-风味调节.
  • 整合全球发酵酒精饮料 (如Baijiu,Pulque,葡萄酒) 来理解这个框架.

主要方法:

  • 整合各种发酵酒精饮料数据.
  • 环境因素的阐明-微生物相互作用-调味法规框架.
  • 应用跨规模的方法,包括多omics,计算建模和物联网传感.

主要成果:

  • 环境梯度 (温度,氧气,pH) 通过调节平衡来塑造微生物相互作用.
  • 微生物的相互作用直接协调了味道代谢组的组合:协同作用增强了,竞争平衡了多样性,对抗性抑制了异味.
  • 味道代谢物提供反,重塑微环境 (酸化,厌氧).

结论:

  • 建立的框架揭示了一个闭环系统,其中环境,微生物和味道是动态合的.
  • 该框架为设计合成微生物联盟和强大的初始培养提供了基础,以生产稳定的风味.
  • 它指导了发酵酒精饮料中针对性的风味优化.