food preservation
TRANSCRIPT
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FOOD PRESERVATION
FOOD PRESERVATION REFERS TO ANY TECHNIQUE USED TO PREVENT
FOOD FROM SPOILING.
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METHODS OF PRESERVATION
DRYING SMOKINGCOOLINGFREEZING
SALTINGPICKLING
CANNING
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DRYING METHOD OF PRESERVATION
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DRYING IS THE OLDEST METHOD .IT IS DONE BY SUN DRYING OR AIR DRYING.IT IS REMOVAL OF WATER FROM THE FOOD.
ANYTHING CAN BE DRIED SUCH AS
VEGETABLESDRY FRUITSFISH OR MEAT
PRODUCTSDRIED PRODUCTS
CAN BE KEPT FOR A LONG TIME.
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COOLING AND FREEZING
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FREEZING AND COOLING ARE THE BEST METHOD OF FOOD PRESERVATION
COOLING AND FREEZING HELP IN STOPPING THE GROWTH OF BACTERIAS PRESENT IN RAW MATERIALS.THEIR GROWTH SLOWS DOWN AT LOW TEMPERATURES
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FREEZING IS KEEPING FOOD IN LOW TEMPERATURES(-4 C TO -18 C)
ANYTHING CAN BE COOLED AND FREEZED SUCH AS VEGETABLES , FRUITS , MEATS ,FISHES ETC.
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SALTING AND PICKLING
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SALTING STOPS BACTERIAL GROWTH AND IT IS OLDEST METHOD.
BRINE SOLUTION IS MADE BY ADDING SALT AND VINEGAR IN PROPORTIONS. IT IS USED TO PRESERVE FISHES , MEATS , VEGETABLES ETC.
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EXAMPLES OF PICKLING AND SALTINGFISH IN BRINE SOLUTION PICKLES
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CANNING
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CANNING IS KEEPING THE FOOD PRODUCTS IN GALVANIZED TINS
CANNING CAN BE DONE TO MEATS , FISHES, FRUITS AND VEGETABLES.
CANNING MEANS TO KEEP FOOD IN CONTAINERS.
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PRESERVATION BY SUGAR SYRUP
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SUGAR PRESERVATION METHOD IS MAINLY USED FOR PRESERVING FRUITS FOR A LONG TIME.SUGAR SYRUP STOPS THE MICROBIAL GROWTH.
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SMOKING
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SMOKING IS PRESERVING FOOD METHOD.
Smoking is the process of flavoring, cooking, or preserving food by exposing it to the smoke from burning or smoldering plant materials, most often wood.
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MATERIALS USED FOR PRESERVATION ARE AS FOLLOWS SUCH AS1. SALT2.SUGAR3.VINEGAR4.SODIUM BENZOATE5.SORBIC ACID.
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THANK YOU !!!HAVE A NICE DAY !!!!!!MADE BY: CHEF RICHA([email protected]