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Question

The average moisture binding energy of a textured protein product (TPP) at 8% moisture content (dry basis) is 3200 cal.mol'. If the water activity of the TPP at the above moisture content is 0.30 at 30 °C, the water activity of the sample at 45 °C is (rounded off to 2 decimal places). The value of Gas constant R = 1.987 cal.mol'.K'. (NAT)

Explanation

In biochemistry, enzyme kinetics dictates that substrate binding and catalytic efficiency determine reaction rates. Therefore Option NAT is correct as it reflects active-site specificity and regulation, supported by mechanistic studies and conserved across related systems.

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