Food Microbiology

Food Microbiology - Food Microbiology -Quality...

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Food Microbiology -Quality -Fermentation -Spoilage -Foodborne Illness -Preservation
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Understanding factors that influence microbial growth essential to maintaining food quality. -Will determine which microbes grow in particular food and at what rate. Extrinsic factors : -Environmental conditions. Intrinsic factors : -Conditions naturally present in food.
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Intrinsic factors Microbes multiply most rapidly in moist, nutritionally rich, pH neutral foods Intrinsic factors include Antimicrobial chemicals Biological barriers Nutrients pH Water availability
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Extrinsic factors Extent of microbial growth largely dependent on storage of food. -Extrinsic factors include Storage temperature Atmosphere
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Fermented foods -Lactic acid fermentation -Alcohol fermentation -Historically important method of food preservation.
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Use of lactic acid fermentors (Lactobacillus, Lactococcus, Streptococcus, Leuconostoc, Pediococcus) that produce lactic acid as an end product of their metabolism. -adds aroma and quality (texture) to
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Food Microbiology - Food Microbiology -Quality...

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