I would like to share these papers. I think for the basics is enough.

Metabolic engineering seeks for the optimization of cellular processes, endemic to a specific organism, to produce a compound of interest from a substrate, preferably cheap and simple. It uses different databases, libraries of components, and conditions to generate the maximum production rate of the desired chemical compound and avoiding inhibitors and conditions that affect the growth rate and other vital functions in the specific organism to achieve these goals; metabolic fluxes manipulation represents an important alternative

I recommend Article Transporter Engineering for the development of Cyanobacteria...