PPT-Food contamination and spoilage

Food contamination There are three ways which food can be contaminated physical chemical bacterial Physical contamination Physical contamination can occur in a variety of ways at different stages of food processing and production Some examples are. INTRODUCTION. Milk products include milk, cream, butter, frozen deserts, cheese, fermented milks, condensed & dried milk products.. The nutritional qualities of milk & milk products make the desirable foods for humans and young animals.. Professor James Dooley. School of Biomedical Sciences,. University of Ulster,. Coleraine. Food Spoilage and Preservation. Essential element of modern society. Not appreciated by most individuals. A changing environment requiring constant innovation. Varun. . Pathak. School of Biomedical Sciences,. University of Ulster,. Coleraine. Hunter-Gatherer society. supported low numbers/ self-sufficient. unreliable food supply. limited specialisation of individuals. of cereals &cereal products. . CONTAMINATION. The exteriors of harvested grains retains some of the natural flora they had while growing plus contamination from soil ,insects & other sources. . Microorganisms & Food. OCR AS Biology – F212 – Module 2. Food & Health. Learning Objectives. Success Criteria. Understand that food spoilage can be harmful to human health.. Understand the methods used to prevent food spoilage.. of cereals &cereal products. Submitted by :. P. aramjeet . m.Sc II FN. Roll no -604. CONTAMINATION. The exteriors of harvested grains retains some of the natural flora they had while growing plus contamination from soil ,insects & other sources. . Microbial food spoilage occurs as a consequence of either microbial growth in a food or release of extracellular and intracellular(following cell . lysis. ) . enzymes in the food environment.. Signs of spoilage of different types of food:. 1. 41. Copyright © McGraw-Hill Global Education Holdings, LLC. Permission required for reproduction or display.. Microbial Growth and . Food . Spoilage. Results . from growth of microbes in food. alters food visibly and in other ways, rendering it unsuitable for . http://. www.learnalberta.ca/content/kefs/index.html. food safety. http://. www.youtube.com/watch?v=1EkehFkhWf4. youtube. - We will We Will Rock you. http://. www.youtube.com/watch?v=32x65e9zTYo&feature=related. Consumers: Food and Nutrition. Contamination. Food Poisoning. ‘Food poisoning comes from eating foods that contain germs like bad bacteria or toxins, which are poisonous substances.’ . (Kid’s Health 2012). CONTAMINATION OF SUGARS:. Sugar products include: sucrose (cane and beet sugar), molasses, syrups, maple sap and sugar, honey and candy.. SUCROSE. : . The raw juice expressed from sugarcane may become high in microbial content unless processing is prompt.. Food Spoilage . Natural Decay. Contaminated by microscopic forms of life (micro-organisms). Perishable Foods . Foods spoil rapidly due to:. Large amounts of water and nutrients . Examples include: . milk . . Alkhaldi. Community Medicine 2015/ 1016. Faculty of Medicine, The University of Jordan. Food Contamination. A . toddler is hospitalized as a result . of drinking . contaminated apple juice. . A preschooler dies . food.  deteriorates to the point in which it is not edible to humans or its quality of edibility becomes reduced. It involves any change which renders food unacceptable for human consumption.. Spoilage of food can occur through:.