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

Why micro-organisms preferred in bioprocessing

Due to their efficiency

Industrial fermentation definition

Production of useful products by micro-organisms, with or without oxygen

Bioreactors

Large vessels designed for 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 carbon dioxide to help dough rise

Traditional products from bacteria/yeasts

Yoghurt, cheese, vinegar, soy sauce, antibiotics

Example fuel from genetically modified micro-organisms

Biogas

Use of immobilised E. coli

Water treatment to detoxify sewage in waste water

Key characteristics of micro-organisms in industry

Cost-effective, efficient, and environmentally friendly

Impact of genetic engineering on bioprocessing

Expanded the range of products that can be made

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