SOC Medium (Super Optimal Broth with Catabolite Repression) is a core optimized liquid medium in molecular biology experiments. Specifically designed for Escherichia coli (E. coli), it focuses on post-transformation recovery + high-efficiency proliferation + plasmid amplification, and serves as a key consumable for molecular biology research. Its core application scenarios include:

Post-transformation Recovery: After bacterial cells undergo transformation procedures such as heat shock or electroporation, SOC Medium rapidly repairs the cell membrane, restores cell viability, and facilitates the expression of resistance genes on plasmids (e.g., ampicillin resistance), laying a foundation for subsequent positive clone screening via antibiotic-containing agar plates.
High-copy Plasmid Amplification: With its richer nutritional composition, it shortens culture time and improves plasmid yield, making it suitable for large-scale plasmid preparation requirements.
Competent Cell Preparation: It cultivates E. coli in the logarithmic growth phase, providing high-activity initial bacterial cultures for competent cell preparation.

Item	Details
Purpose	Cultivation of genetically engineered Escherichia coli (E. coli)
Preparation Method	Weigh 31.4g of this product, heat to dissolve in 1000ml of distilled water, autoclave at 116℃ for 30 minutes, and set aside for use.
pH Value (25℃)	7.0±0.2
Composition and Content (g/L)	Tryptone: 20.0; Yeast Extract: 5.0; Glucose: 3.6; Magnesium Sulfate (MgSO₄): 1.2; Magnesium Chloride (MgCl₂): 0.95; Sodium Chloride (NaCl): 0.5; Potassium Chloride (KCl): 0.186

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