Question

Study of effect of potassium bisulphate as food preservative under various conditions (temperature, concentration, time etc.)

Answer 1

When potassium bisulphite is dissolved in water, it forms a sulfurous acid. The acid lowers the pH of the food, which helps inhibit the growth of harmful organisms, including bacteria such as E. coli, as well as yeast and mold. The bisulphite also prevents browning or discoloration of food Potassium bisulphite is more stable than potassium sulfite. In humid conditions, however, the dry salt may oxidize and lose some of its antimicrobial power.