FOOD PROCESSING AND PRESERVATION
FOOD PRESERVATION METHODS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Bananas
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Dates
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Oranges
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Potatoes
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Detailed explanation-1: -High cost of changing drum surface because of the precision machining that is required. Possible scorching of the product to impart cooked flavor and off-color due to direct contact with high temperature drum surface. Not able to process salty or other corrosive materials due to potential pitting of drum surface.
Detailed explanation-2: -Drum dryer takes viscous liquids, slurries, suspensions, and pastes as input material to be dried and produces the output as powders or flakes. Drum dryers find application majorly in Food & Dairy industry and Chemical & Pharmaceutical Industries for drying various type of pasts and slurries.
Detailed explanation-3: -The drum dryer consumes 1.2 to 1.4 kg of steam to evaporate 1 kg of moisture. This thermal efficiency is much better than a spray dryer, making it an energy saving dryer.