1.1. What are the main goals of bioprocess engineering?
Solution: Using the equation for sterilization, N(t) = N0 * e^(-kt), where N0 is the initial number of spores, k is the death rate constant, and t is time. N(15) = 10^6 * e^(-0.5*15) = 10^6 * e^(-7.5). Bioprocess Engineering Basic Concepts 2nd Edition Solution
2.2. A fermentation process produces 200 kg of product per day. If the process operates 300 days per year, what is the annual production of product? N(t) = N0 * e^(-kt)
5.1. A medium is sterilized at 121°C for 15 minutes. If the initial number of spores is 10^6 per mL and the death rate constant is 0.5 min^-1, what is the final number of spores per mL? k is the death rate constant