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Unformatted text preview: C vit = C vit,0 e-Kd,v, t where C vit is the vitamin concentration at time t (mg/L). K d,v is the inactivation rate constant of vitamin and follows the Arrhenius equation. The corresponding values of E 0d and are E 0d = 10 kcal/g-mol =10 4 min-1 The temperature history of the heating, holding and cooling of the medium is as follows: Duration (min) Temperature t1=30 T= 80 C t2 (from question a) ) T= 121 C t3 = 20 T= 50 C Determine the amount of active vitamin in the sterilized medium. c) Compare the Kd of spores at the above three temperatures, and discuss whether it is reasonable to neglect the contributions of heating and cooling periods to sterilization....
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This note was uploaded on 02/13/2012 for the course CHM 3210 taught by Professor Kennell during the Fall '11 term at University of Florida.
- Fall '11