what are food poisoning and food preservation?
Answers
Answer:
Food poisoning, also called food borne illness, is illness caused by eating contaminated food. Infectious organisms including bacteria, viruses and parasites or their toxins are the most common causes of food poisoning.
For example, botulism.
METHOD OF FOOD PRESERVATION - CHEMICAL METHOD - DEFINITION
Preservatives like sodium benzoate are added to tinned foods and squashes.
METHOD OF FOOD PRESERVATION - STRONG CONCENTRATION AND CHEMICALS - DEFINITION
High concentration of solute causes plasmolysis and death of any bacteria that may creep in.
METHOD OF FOOD PRESERVATION - COMMON SALT - DEFINITION
Salt is mixed with food in order to prevent biodegradation under normal conditions.
Treatment with salt for preservation purposes is called curing.
For example, fish, pickles etc are preserved using salting.
METHOD OF FOOD PRESERVATION - SUGAR - DEFINITION
High concentration of sugar is added to some products (e.g., jams) that causes plasmolysis and death of any bacteria that may creep in.
METHOD OF FOOD PRESERVATION - OIL AND VINEGAR - DEFINITION
Oil has an ability to stop the moisture from entering the food and thus it acts as a barrier for moisture.
In pickling oil plays a vital role as pickles have to have a shelf life of several years.
Vinegar and all other citric juices can be used as an antioxidant as a preservative.
METHOD OF FOOD PRESERVATION - HEAT AND COLD TREATMENTS - DEFINITION
Heating at high temperature kills all bacteria. Heating is done in canning industry before packing and sealing the food.
Since, microbes do not grow or multiply below the freezing point of water, cold treatment is used for preservation of fishes and vegetables.
METHOD OF FOOD PRESERVATION - PASTEURIZATION - DEFINITION
Pasteurization is exposing (a food, as milk, cheese, yogurt, beer, or wine) to an elevated temperature for a period of time sufficient to destroy certain microorganisms, as those that can produce disease or cause spoilage or undesirable fermentation of food, without radically altering taste or quality.
Answer:
heyya mate...
Here is ur answer -
Food poisoning =an illness that is caused by eating food that is bad
food preservation = it is prevent the growth of microorganisms