Related Experiment Video
Updated: May 27, 2026
09:30
Introducing an Angle Adjustable Cutting Box for Analyzing Slice Shear Force in Meat
Published on: April 26, 2013
Starters in the processing of meat products
1Hohenheim University, Institute of Food Technology, Garbenstrasse 25, D-70599 Stuttgart, Germany.
Meat Science
|November 9, 2011
Summary
Starter cultures, including moulds, yeasts, and bacteria, are crucial in meat technology. Genetic engineering enhances starter cultures for improved safety and functionality in meat fermentation.
Area of Science:
- Food Microbiology
- Biotechnology
- Meat Science
Background:
- Starter cultures in meat technology encompass moulds, yeasts, and bacteria, each with specific roles.
- Mould selection prioritizes non-mycotoxin production and desirable sensory attributes.
- Bacterial starter components include micrococci, staphylococci, and lactic acid bacteria (LAB).
Purpose of the Study:
- To detail the characteristics and applications of various microbial starter cultures in meat technology.
- To highlight the importance of understanding microbial properties for optimal fermentation and safety.
- To explore the potential of genetic engineering in enhancing starter culture performance and safety.
Main Methods:
- Review of existing knowledge on the technological, ecological, physiological, and genetic properties of starter organisms.
- Discussion of the application of genetic engineering for modifying starter culture capabilities.
- Analysis of the role of starter cultures in fermentation and as protective cultures.
Main Results:
- Lactic acid bacteria (LAB) are the most significant starter organisms, vital for all fermentation aims.
- Starter cultures can function as protective cultures, inhibiting food pathogens and spoilage organisms.
- Genetic engineering has successfully modified meat-specific bacteria like Staphylococcus carnosus and certain lactobacilli.
Conclusions:
- Comprehensive knowledge of starter culture properties is essential for effective meat fermentation and risk reduction.
- Genetic engineering offers a powerful tool to develop advanced starter cultures with enhanced safety and functionality.
- Starter cultures play a critical role in both traditional meat processing and novel applications for food safety.
Related Concept Videos
01:27Upstream Processing
Upstream processing represents a critical phase in biomanufacturing, wherein biological systems such as microorganisms, mammalian cells, or insect cells are cultivated to produce therapeutic proteins, vaccines, enzymes, or other biologically derived products. This phase encompasses all steps from the selection and genetic manipulation of the production organism to the cultivation of cells in bioreactors under tightly controlled environmental conditions.Host Selection and Genetic OptimizationThe...
01:29Downstream Processing
Downstream processing begins once fermentation is complete and involves a series of steps to recover and purify products such as acids, vitamins, antibiotics, or proteins.Cell HarvestingFor example, for intracellular protein-based products, the first step is harvesting the cells. This is typically achieved using centrifugation or filtration to separate the cells from the liquid phase.Cell Disruption for Intracellular ProductsIf the target product is intracellular, the harvested cells must be...
01:27Microbes 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...
01:02Protein Digestion
Protein digestion begins in the stomach, where the highly acidic environment can easily disrupt protein structure by exposing the peptide bonds of polypeptide chains. After polypeptide chains are broken into individual amino acids by a series of digestive enzymes, the amino acids are transported to the liver via the bloodstream to produce energy.
01:28Pasteurization and Food Preservation
Pasteurization is a widely employed thermal processing technique designed to enhance the safety and shelf life of perishable food and beverages. By subjecting products to specific high temperatures for controlled durations, this method effectively inactivates pathogenic microorganisms and spoilage enzymes without significantly compromising sensory qualities. The technique has been pivotal in food safety management, especially for consumables susceptible to microbial contamination such as milk,...
01:30Mechanical and Chemical Digestion in the Small Intestine
The small intestine plays a crucial role in our digestive system, performing both mechanical and chemical digestion.
Mechanical digestion in the small intestine involves movements such as segmentations and migrating motility complexes (MMCs), primarily controlled by the myenteric plexus. Segmentations are localized contractions occurring in areas of the intestine distended by chyme—a mixture of partially digested food. These contractions mix chyme with digestive juices, facilitating absorption...
Mechanical digestion in the small intestine involves movements such as segmentations and migrating motility complexes (MMCs), primarily controlled by the myenteric plexus. Segmentations are localized contractions occurring in areas of the intestine distended by chyme—a mixture of partially digested food. These contractions mix chyme with digestive juices, facilitating absorption...