Food Microbes

FOOD MICROBES

What are microorganisms? 2

Microorganisms (microbes) are viruses, bacteria and fungi They are too small to be seen with the naked eye, but can be seen with a microscope They are single celled organisms

Food Microbes

Sources of Microorganisms 3

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Where do microorganisms come from? EVERYWHERE!

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Microbes live in the water you drink, the food you eat, and the air you breathe.

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Right now, billions of microbes are swimming in your belly and mouth, and crawling on your skin! Food Microbes

Are Microbes Harmful? 4

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95% of all microbes are harmless Some are very beneficial to humans Bacteria in people’s intestines help to digest food Some harmless microbes protect people by competing

Food Microbes

The good, the bad and the ugly Good - important in food production; provide better taste and texture Bad - cause of food borne illness: – Infection with live organisms – Intoxication with bacterial toxins

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Food Microbes

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Beneficial Microorganisms 

Helpful bacteria and fungi that are either added or naturally occur in foods.

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Create unique flavors and textures or improve the body’s ability to digest foods or fight disease. Food Microbes

Bacteria The most important bacteria used in food production are the Lactobacillaceae family. This family produces lactic acid from carbohydrates, resulting in changes in certain foods, eg: milk to yogurt.

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Food Microbes

Yeast The most beneficial yeasts for food production are from the genus Saccharomyces.  Yeasts produce desirable chemical reactions.  Example: leavening of bread and production of alcohol. 

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Food Microbes

Molds • Molds from the genus Penicillium are associated with the ripening and flavor of cheeses.

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Food Microbes