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Related Concept Videos

Fermentation01:29

Fermentation

127.8K
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...
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Microbial Fermentation01:23

Microbial Fermentation

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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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Fates of Pyruvate01:20

Fates of Pyruvate

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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...
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Microorganisms in Agriculture and Food industry01:27

Microorganisms in Agriculture and Food industry

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Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
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Environmental Applications of Microorganisms01:30

Environmental Applications of Microorganisms

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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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Other Glycolytic Pathways01:24

Other Glycolytic Pathways

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The pentose phosphate pathway (PPP) operates in parallel with glycolysis, facilitating the metabolism of both pentoses and glucose. This pathway consists of two distinct phases: the oxidative and non-oxidative phases. While it does not directly generate ATP, the intermediates formed during the process can integrate into glycolysis, contributing to cellular energy metabolism when required.Oxidative Phase: NADPH ProductionThe oxidative phase of the pentose phosphate pathway is primarily...
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Updated: Dec 6, 2025

Light-Controlled Fermentations for Microbial Chemical and Protein Production
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Light-Controlled Fermentations for Microbial Chemical and Protein Production

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On the future fermentation.

Guo-Qiang Chen1,2,3,4, Xinyi Liu1

  • 1School of Life Sciences, Tsinghua University, Beijing, 100084, China.

Microbial Biotechnology
|October 6, 2020
PubMed
Summary
This summary is machine-generated.

Extremophilic bacteria offer a promising solution to enhance industrial fermentation competitiveness by addressing key challenges like water scarcity and energy use. These microbes improve efficiency and sustainability in producing valuable chemicals and biofuels.

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Area of Science:

  • Industrial biotechnology
  • Microbial process engineering

Background:

  • Microbial fermentations are vital for producing chemicals, materials, biofuels, foods, and medicines.
  • Current fermentation processes face significant challenges impacting their competitiveness against chemical industries.

Purpose of the Study:

  • To identify key technological limitations hindering industrial fermentation competitiveness.
  • To explore the potential of extremophilic bacteria in overcoming these limitations for more effective future fermentation.

Main Methods:

  • Review of existing challenges in industrial fermentation processes.
  • Evaluation of extremophilic bacteria as a potential solution for sustainable fermentation.

Main Results:

  • Identified critical issues: water shortage, high energy consumption, contamination risks, poor oxygen use, substrate inefficiency, separation difficulties, wastewater generation, and high costs.
  • Extremophilic bacteria demonstrate potential to address these challenges effectively.

Conclusions:

  • Addressing current fermentation limitations is crucial for industrial competitiveness.
  • Extremophilic bacteria present a viable strategy for developing more efficient and sustainable future fermentation technologies.