As a process engineer, you have been entrusted with the design of the fermentation of lactic acid using

Lactobacillus casei, as well as the approach of the unit operations for its recovery and

Partial purification to meet a demand of $17103$ tons with a share percentage of $1\%.$

The following data have been obtained from batch fermentations at laboratory level:

Table $1$: Field culture data of L$.$ casei $($Ha$,$ M$.$ Y$.$ et al$.,2003)$

Definition of bioreaction parameters and strategies Based on the information presented, your design

should present the following:

a$)$ A mathematical model of fermentation that describes the dynamics of biomass, substrate and

product with respect to time. You should indicate the relevant ethical parameters

b$)$ Fermentation strategy

that allows you to meet the demand.

c$)$ Design of the bioreactor including the operating volume and the rest of the dimensions $($diameter of

the tank, agitator$($s$),$ etc.$)$

Establishing the stages of the bioprocess Based on the characteristics of the 'lactic acid and the way in

which L$.$ casei produces it$,$ answer the following:

a$)$ Block diagram with the stages of the bioprocess. This must start with fermentation and include at

least $2$ subsequent unit operations.

b$)$ Justification of the selected unit operations Based on:

The biochemical characteristics of the molecule

At least a foundation of sustainability