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Related Concept Videos

Microbes in Food Production01:29

Microbes in Food Production

Microbial fermentation is central to food biotechnology, enhancing flavor, texture, preservation, and stability. Fermentative microorganisms metabolize carbohydrates into organic acids, alcohols, and other metabolites that inhibit spoilage organisms and improve digestibility while contributing distinctive sensory qualities.In baking, amylases naturally present in flour hydrolyze starch into monosaccharides such as glucose, which Saccharomyces cerevisiae ferments anaerobically. Through...
Production of Organic Acids01:25

Production of Organic Acids

Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
Microbes in the Production of Fermented Foods01:27

Microbes in the Production of Fermented Foods

Lactic acid bacteria (LAB) and molds are instrumental in fermenting plant-based foods to enhance preservation and ensure year-round availability. These microbial processes convert plant carbohydrates into organic acids and other metabolites that inhibit spoilage organisms and contribute to the sensory qualities of the final product.In sauerkraut production, cabbage goes through a microbial succession that starts with cocci such as Leuconostoc mesenteroides. These microbes begin fermentation by...
Microbial Fermentation01:23

Microbial Fermentation

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...
Fermentation01:29

Fermentation

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...
Microbes in Beverage Production01:25

Microbes in Beverage Production

Alcoholic beverages such as wine, beer, and spirits are the products of microbial fermentation processes that transform simple sugars into ethanol and a wide array of complex flavor compounds. These transformations rely on the metabolic activities of specific yeasts and bacteria, which are selected and controlled to yield the desired beverage characteristics.Wine Fermentation and MaturationWine production begins with the crushing of grapes to release juice and pulp, forming a must that is...

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Related Experiment Video

Updated: Jun 13, 2026

The Cultivation, Growth, and Viability of Lactic Acid Bacteria: A Quality Control Perspective
04:40

The Cultivation, Growth, and Viability of Lactic Acid Bacteria: A Quality Control Perspective

Published on: June 16, 2022

Lactic acid bacteria fermentation-driven protein-based gelation: Mechanisms, structure-function relationships, and

Chonghao Zhao1, Bin Dong1, Yunping Yao1

  • 1College of Food Science and Engineering, Tianjin University of Science & Technology, Tianjin 300457, China.

Advances in Colloid and Interface Science
|June 11, 2026
PubMed
Summary

Lactic acid bacteria (LAB) fermentation drives protein gel formation through complex interactions beyond simple acidification. Strain-specific traits influence exopolysaccharide (EPS) production, proteolysis, and ion effects, shaping the final gel network.

Keywords:
Food applicationsGel formation mechanismsLactic acid bacteria fermentationProtein gelation

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Novel Production Protocol for Small-scale Manufacture of Probiotic Fermented Foods
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Last Updated: Jun 13, 2026

The Cultivation, Growth, and Viability of Lactic Acid Bacteria: A Quality Control Perspective
04:40

The Cultivation, Growth, and Viability of Lactic Acid Bacteria: A Quality Control Perspective

Published on: June 16, 2022

Novel Production Protocol for Small-scale Manufacture of Probiotic Fermented Foods
08:38

Novel Production Protocol for Small-scale Manufacture of Probiotic Fermented Foods

Published on: September 10, 2016

Immobilization of Multi-biocatalysts in Alginate Beads for Cofactor Regeneration and Improved Reusability
09:27

Immobilization of Multi-biocatalysts in Alginate Beads for Cofactor Regeneration and Improved Reusability

Published on: April 22, 2016

Area of Science:

  • Food Science
  • Microbiology
  • Colloid Science

Background:

  • Protein-based gels are crucial in fermented foods.
  • Lactic acid bacteria (LAB) fermentation influences gel structure.
  • Acidification alone doesn't fully explain LAB-driven gelation.

Purpose of the Study:

  • To re-evaluate LAB fermentation-driven protein gelation.
  • To introduce a strain-metabolite-protein colloidal state-gel functionality framework.
  • To identify matrix-dependent control targets for fermented protein gels.

Main Methods:

  • Literature review and synthesis.
  • Development of a novel framework for understanding gelation.
  • Comparative analysis of dairy, plant, meat, and microbial protein systems.

Main Results:

  • Strain traits dictate acidification, EPS production, proteolysis, and ionic interactions.
  • Exopolysaccharides (EPS) can reinforce or destabilize networks.
  • Proteolysis and divalent ions have complex, context-dependent effects on gel structure.
  • Matrix composition influences optimal control targets like pH, EPS features, and hydrolysis.

Conclusions:

  • LAB fermentation involves intricate interplay between microbial metabolism, protein colloidal state, and gel functionality.
  • A mechanistic understanding is needed for rational starter selection and process design.
  • Further research should focus on standardized reporting and predictive modeling.