GATE 2023 - XL Life science Food Technology

 Water activity Problem

The average moisture binding energy of a textured protein product (TPP) at 8% moisture content (dry basis) is 3200 cal.mol-l. If the water activity of the T PP at the above moisture content is 0.30 at 30 degC, the water activity of the sample at 45 deg c is ________________ (rounded off to 2 decimal places). The value of Gas constant R = 1.987 cal.mol-1 K-1 

solution: https://youtu.be/PgaDzC3Emm0