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FUNGI, BACTERIA AND FERMANTATION

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OBJECTIVES To recall the method of nutrition used by microorganisms To know some examples of commercial exploitation of microbial metabolism

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What is heterotroph? herbivores carnivores omnivores All animals Most bacteria Some fungi

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MICROBES CARRY OUT USEFUL METABOLIC PROCESSES Heterotrophic Fungi -such as yeast and Fusarium- and many bacteria saprotrophic

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The enzymes, toxic or excess products which they excrete of use to humans Some microbes useful in food production

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Acetobacter vinegar manufacture Lactobacillus yoghurt and cheese production

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Ripening bacteria cheese production Fusarium and mycoprotein

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On an enormous scale in special factories The microbes cultured separately added sterilised container

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These containers fermenters or bioreactors

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ZNUR WILL