Life SciencesBiochemistryBiotechnologyMetabolic EngineeringMetabolismMicrobial MetabolismBacterial MetabolismBioprocess OptimizationMetabolic Pathway EngineeringMicrobial Metabolic EngineeringMicrobial Synthetic BiologyStrain ImprovementEscherichia ColiGlutamic Acid FermentationProduct Yield OptimizationRational Metabolic Engineering