Food microbiology Contamination of foods CONTAMINATION,PRESERVATION, AND SPOILAGE FOOD AND MICROORGANISMS Food Food -- Microbiology--Food -- Preservation--Food Microbiology Food Microbiology Food Poisoning Food and diseases Food as a substrate for microorganisms Food born illness Food contamination Food preservation Food sanitation Food technology General principles underlying spoilage: chemical changes caused by microorganism Microbiology Microorganisms important in food microbiology PRINCIPLES OF FOOD PREPARATION Preservation Preservation by use of high temperatures Preservation of Foods food-preservation