Microorganisms in Industrial Fermentations (Leaving Cert Biology): Flashcards

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Microorganisms in Industrial Fermentations
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Bioprocessing definition

Use of enzyme-controlled reactions to make a product

Main micro-organisms in industrial fermentation

Bacteria and fungi, especially yeast

Industrial fermentation definition

Production of useful products by micro-organisms, ± oxygen

Bioreactors

Large vessels designed for industrial fermentation

Why sterile environment needed in bioreactors

To prevent contamination

Yeast use in alcohol production

Produces beer and wine through alcohol fermentation

Yeast role in bread making

Produces CO2CO_2 to help dough rise

Traditional fermentation products

Yoghurt, cheese, vinegar, soy sauce, antibiotics

Products from genetically modified micro-organisms

Solvents, amino acids, vitamins, drugs, enzymes, biogas

Use of immobilised E. coli

Water treatment to detoxify sewage in waste water

3 advantages of micro-organisms in industry

Cost-effective, efficient, environmentally friendly

Impact of genetic engineering on bioprocessing

Expanded range of products from micro-organisms

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