Which of the following is the source of salt used for Preservation of foods items?
Explanation: All of the mentioned are sources of salt used for preservation of food items. Solar salt is obtained by evaporation from the sea. Welled salt is from deeper subterranean salt deposits. Rock salt is from certain mined deposits.
Three types of salts are neutral, acidic and basic salts. The salts that give a neutral solution on mixing and dissolving them with water are known as neutral salts. The reaction of strong acid and strong base gives neutral salt. For example sodium chloride, sodium sulphate.
Salting is a method of preserving food, that was more common before modern refrigeration. Salting preserves food by drawing water out of the food, preventing bacteria growing and spoiling the food.
Salt is effective as a preservative because it reduces the water activity of foods. The water activity of a food is the amount of unbound water available for microbial growth and chemical reactions.
Salting is a process where the common salt (NaCl), sodium chloride, is used as a preservative that penetrates the tissue; hence slows the bacterial growth and deactivates the enzymes.
It is one of the oldest methods of preserving food, and two historically significant salt-cured foods are salted fish (usually dried and salted cod or salted herring) and salt-cured meat (such as bacon). Vegetables such as runner beans and cabbage are also often preserved in this manner.
The suitability of salt for any particular application depends upon several factors, the most important of which are: (i) the chemical composition; (ii) the microbiological purity; (iii) the physical properties.
Also known as canning salt or preserving salt, pickling salt is simply pure granulated salt (sodium chloride), without any anti-caking agents or additives that are traditionally added to table salt.
Common salt is used in food preservation as it is acidic in nature. Q. Salt and sugar have been used for centuries as food preservatives.
Salt comes from two main sources: sea water and the sodium chloride mineral halite (also known as rock salt). Rock salt occurs in vast beds of sedimentary evaporite minerals that result from the drying up of enclosed lakes, playas, and seas.