Lecture 12

Freezedryingisamoreexpensivedryingmethodthefoodisfirst

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Unformatted text preview: robes (except small nozzle; milk mist enters a large tank with air circulation, where the milk dries up. Fluid milk → mist → Dry milk in food fermentations); ‐ stop loss of nutrients. Freeze drying is a more expensive drying method. The food is first frozen, and Some processed foods can be stored at room temperature; these are shelf stable then placed under vacuum – ice is transformed directly into water vapor products. Formulated and Prepared foods Involve the mixing of many ingredients. These foods (sublimation). Dried strawberry slices that come with some cold breakfast cereals are not recognizable as their original plant or animal source; some of these products are dried using this method. may be ready to eat. Ex.: bread, ice cream. Milling separates various fractions of cereal grains, such as wheat and corn. More Major types of food processing include: Heating, Freezing, Drying, Milling, Extraction, among others. Heating. Preservation by heat treatment is the most widely used met...
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