l-tyrosine (l-tyr) is a valuable aromatic amino acid that can be produced via microbial fermentation, providing a sustainable alternative to costly and polluting chemical synthesis. However, industrial production is limited by poor strain performance and inefficient resource utilization. In this study, a high-performance Escherichia coli strain was engineered to address key fermentation bottlenecks for efficient l-tyr synthesis from high-purity glucose syrup. Initially, a "rapid channel" for l-tyr biosynthesis was established by overexpressing aroG