Question

What is the basis of long life of pickles and jams ? what lesson one gets from this fact ?

Answer 1

         Preservatives help to maintain the existing condition of pickles and jams. To delay the spoiling of foodstuffs by micro organisms, anti microbial substances are used which inhibit, delay or prevent the growth of bacteria, yeasts and moulds. Sorbic acid is used to preserve jam. Benzoic acid and its calcium, sodium or potassium salts are used to preserve pickles and low sugar jams.

         To ensure that preservatives really help in making the foodstuffs safer, their use is subject to pre market safety assessment and authorisation procedure. So while buying pickles and jams we should check whether approved preservatives have been used.

Answer 2

Answer:

Pickles and jams have high concentration of osmotically active substances (such as salt in pickes, sugar in jams). They do not allow the microbial spores to germinate over them. Even on contamination, a microorganism connot survive in them as it will undergo exosmosis and die. Turmic and acetic acid (or any preservative) too kills the microbes. Because of being microbe/germ free, pickles and jams do not get easily spoiled. Further life of pickles and jams is enhanced by keeping them in dry and cool places and handling of them by the neat and moisture - free (i.e., dry) spoons.

Pickles and jams have high concentration of osmotically active substances (such as salt in pickes, sugar in jams). They do not allow the microbial spores to germinate over them. Even on contamination, a microorganism connot survive in them as it will undergo exosmosis and die. Turmic and acetic acid (or any preservative) too kills the microbes. Because of being microbe/germ free, pickles and jams do not get easily spoiled. Further life of pickles and jams is enhanced by keeping them in dry and cool places and handling of them by the neat and moisture - free (i.e., dry) spoons.An active and long life can also occur in human beings if they liver in hygienic environment, avoid coming in contact with contaminated articles and visiting crowded places.

Explanation:

Hope It's Helpful

Have A Great Day ✨