A strain of Azotobacter vinelandii is cultured in a 15 m^3 stirred fermenter for alginate production. Under current operating conditions kLa is 0.17 s^-1. Oxygen solubility in the broth is approximately 8 x 10^-3 kg m^-3. The specific rate of oxygen uptake is 12.5 mmol g^-1 h^-1. What is the maximum possible cell concentration?(a) 10 gl^-1(b) 15 gl^-1(c) 20 gl^-1(d) 12 gl^-1I got this question in an interview for internship.Origin of the question is Oxygen Uptake in Cell Cultures topic in section Mass Transfer of Bioprocess Engineering

A strain of Azotobacter vinelandii is cultured in a 15 m^3 stirred fer

1.	A strain of Azotobacter vinelandii is cultured in a 15 m^3 stirred fermenter for alginate production. Under current operating conditions kLa is 0.17 s^-1. Oxygen solubility in the broth is approximately 8 x 10^-3 kg m^-3. The specific rate of oxygen uptake is 12.5 mmol g^-1 h^-1. What is the maximum possible cell concentration?(a) 10 gl^-1(b) 15 gl^-1(c) 20 gl^-1(d) 12 gl^-1I got this question in an interview for internship.Origin of the question is Oxygen Uptake in Cell Cultures topic in section Mass Transfer of Bioprocess Engineering
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