PPT-Contamination, preservation and spoilage

of cereals ampcereal products Submitted by P aramjeet mSc 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 amp other sources . 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.. 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.. 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. Introduction to Culinary Arts 4.2. . What is Contamination?. A contaminate is an unwanted impurity that has found its way into a particular substance.. Contamination in Culinary Arts references to bacteria and microorganism that live and breed in the food we eat. . Hyogo Prefectural Government. Agricultural & Environmental Affairs Department. Environmental Management Bureau. Water & Air Quality Control Division. Water Quality Group. IINO . Hiroo. 　飯野　博夫. 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:. management. FACTSHEET . 12. Food and Garden Organics . Best Practice Collection Manual. The importance of low contamination. It’s . important to maintain low levels of contamination, in order to:. Decrease processing costs. 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. STRIKTN
ANAEROBN 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 ).. . MILK AND MILK PRODUCTS . Raw . milk contains many types of microorganisms coming from different sources. The average composition of cow’s milk is protein 3.2%, carbohydrates 4.8%, lipids 3.9%, and minerals 0.9%. Besides casein and . 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 . . Kinetics. Growth Curve. Log CFU/ml. Optical Density. Lag. First Order Kinetics. Food microbiology is concerned with all phases. Of microbial growth (. lag,log. , stationary, death phase).Growth curves are normally plotted as the number of cells on a log scale or log10 cell number versus time.. Food spoilage Spoilage is the process in which 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.