FOOD 2010 Lecture Notes - Lecture 12: Roast Beef, Coeliac Disease, Degreasing
7 Feb 2018
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Document Summary
Primary package comes into direct contact with the food product it is surrounding. Example, the inner package of a cereal box. Examples: cans, flexible pouches, glass containers, microwaveable containers, edible films (sausage). The secondary package would be the cereal box with the brand graphics and nutritional info. Substances formed during fermentations of fruits and vegetables-268 296. In fermentation the action of bacteria on carbohydrates produces acids in fermented vegetables. Lactic acid bacteria form lactic acid and carbon dioxide. D-value is the time required for a bacterial population to pass through one log cycle, in which 90% of the organisms have been killed. (time required to kill 90% of the organisms). Newtonian fluid-homogenous mixtures that exhibit no change in viscosity as the rate of shear (applied mechanical force) is increased. The viscosity is independent of the shear rate (the ratio of shear rate (flow) to shear stress (force) is constant). The viscosity and flow characteristics are readily predictable.
