Agricultural Engineering > GATE 2023 > Osmo-Dehydration
The carrot slices (water activity = 0.89) are to be preserved using osmo-dehydration. Addition of salt (NaCl) to 20% sucrose solution (water activity = 0.987) reduces the water activity to 0.85. Percentage of NaCl added to the solution is _______. (rounded off to 2 decimal places, Consider molecular mass of Sucrose = 342 and molecular mass of NaCl = 58.44)
Correct : 4.23
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