PPT-Food Spoilage and Preservation

Varun Pathak School of Biomedical Sciences University of Ulster Coleraine HunterGatherer society supported low numbers selfsufficient unreliable food supply limited specialisation of individuals. 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.. 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.. 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. Project . highlights and achievements in the field of mild preservation. June . 2017. Why. mild . preservation. ?. Traditional processing: challenge to maintain fresh quality and nutrients (e.g. retort sterilisation). 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.. Project Resources. Leia Kedem, MS, RD. Jenna Smith, MPH, RD. Mary Liz Wright, MA. Nutrition & Wellness Educators. Accessing Project Manual. UI Extension website (. http://web.extension.illinois.edu. By . Dr. Abhishek Thakur. (Assistant Professor). College of Fisheries, Kishanganj. BASU, Patna. Subject: Fish Canning Technology. Date of Lecture: . 22.06.2020 & 06.07.2020. Food Spoilage. Food spoilage can be defined as . The ability of microorganisms to grow or multiply in a food is determined by the food environment ( intrinsic environment of food) as well as the environment in which the food is stored (extrinsic environment ).. Drying. Irradiation. Chemical preservation. Food Preservation. Food preservation involves the action taken to maintain foods with the desired properties or nature for as long as possible.. The main reasons for food preservation are to overcome inappropriate planning in agriculture, produce value-added products, and provide variation in diet.. Cause of spoilage:. Spoilage may be due to one or more of the following:. 1. Growth and activity of microorganisms. 2. Insects. 3. Action of the enzymes of the plant or animal food.. 4. Purely chemical reactions i.e., those not . 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:. Esther . Conway, . Brian . Matthews, . David . Giaretta, . Simon . Lambert, . Nick . Draper. . Michael Wilson: Science . and Technology Facilities . Council . Nick Draper: . . Tessella . RAL. Diamond Light Source.