Food Preservation Chemical and Modified Atmosphere Packaging Food Microbiology.

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Presentation transcript:

Food Preservation Chemical and Modified Atmosphere Packaging Food Microbiology

Chemical Preservatives Sodium Benzoate Sorbate Proprionates

Chemical Preservatives Sulfur Dioxide Nitrates and Nitrites BHA/BHT

Chemical Preservatives Salt Sugar Spices and Essential Oils

Chemical Preservatives Flavoring Agents Fatty acids Lactic and Acetic Acid Bacteriocins and Antibiotics

Modified Atmosphere Preservation MAP – Modified Atmosphere Packaging Carbon Dioxide Types Hypobaric Vacuum Packaging MAP Equilibrium Modified Atmosphere Controlled Atmosphere Packaging

MAP Equipment

Carbon Dioxide and Microorganisms Inhibitory Activity Increases as storage temperatures decrease 20-30% Optimal Inhibition increases as pH decreases Under Pressure – More effective

Safety and Spoilage Concerns Clostridium botulinum Listeria monocytogenes Spoilage Lactobacilli B. thermospacta

Video Food additives, what they dont want you to know! - YouTube

10 Worst Foods of the Decade - YouTube