Question: a . H . H . Weetall and N . B . Havewala report the following data for the production of dextrose from corn starch

a. H. H. Weetall and N. B. Havewala report the following data for the production of dextrose from corn starch using both soluble and immobilized (azo-glass beads) glucoamylase in a fully agitated CSTR system.
1. Soluble data: T =60\infty C,[S0]=168 mg starch/ml,[E0]=11,600 units, volume =1000 ml.
2. Immobilized data: T =60\infty C,[S0]=336 mg starch/ml,[E0]=46,400 units initially, immobilized, volume =1000 ml.
Product concentration
(mg dextrose/ml)
Time (min) Soluble Immobilized
012.018.4
1540.0135
3076.5200
4594.3236
60120.0260
75135.5258
90151.2262
105150.4266
120155.7278
135160.1300
150164.9310
165170.0306
225316
415320Determine the maximum reaction velocity, Vm (mg/ml-min unit of enzyme) and the saturation constant, KM (mg/ml).
b. The same authors studied the effect of temperature on the maximum rate of the hydrolysis of corn starch by glucoamylase. The results are tabulated next. Determine the activation energy (DE cal/g mole) for the soluble and immobilized enzyme reaction.
Vmax (m mol/min 106
)
T,\infty C Soluble Azo-immobilized
250.620.80
351.421.40
453.603.00
558.06.2
6516.011.0
c. Using these results, determine if immobilized enzyme is diffusion limited.
this is the question and in solution, in step one s is required to plot a graph betw v and s so what are the values of s ?

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