{"product_id":"invitrogen-magicmedia-e-coli-expression-medium","title":"Invitrogen MagicMedia E Coli Expression Medium Total of 4","description":"\u003cp\u003e\u003cb\u003eInvitrogen™ MagicMedia™ E. coli Expression Medium – Ready-to-Use Liquid (MPN: K6815)\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eThe Invitrogen™ (Thermo Fisher Scientific) K6815 MagicMedia™ E. coli Expression Medium is a high-yield, auto-induction liquid culture medium specially formulated for the high-density growth and recombinant protein expression of T7 promoter-based \u003ci\u003eE. coli\u003c\/i\u003e systems (such as pET vectors in BL21 derivatives). Designed to eliminate the need for optical density monitoring and manual IPTG induction, this ready-to-use medium automatically triggers protein synthesis upon reaching optimal cell density, yielding up to 10-fold higher target protein concentrations compared to standard LB broth.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eProprietary Auto-Induction Formulation:\u003c\/b\u003e Engineered with a balanced combination of carbon and energy sources that selectively regulates the lac operon, suppressing recombinant protein expression during early log-phase growth and automatically inducing high-level expression as glucose is depleted.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHands-Free Workflow Optimization:\u003c\/b\u003e Completely eliminates the labor-intensive process of monitoring culture OD600 levels and manually adding IPTG, allowing researchers to set up overnight or weekend expression runs with minimal hands-on intervention.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eHigh Cell Density \u0026amp; Protein Yields:\u003c\/b\u003e Delivers significantly higher cell densities and recombinant protein yields—often achieving 3 to 10 times the volumetric protein output of conventional Luria-Bertani (LB) or Terrific Broth (TB) protocols.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReduced Toxicity \u0026amp; Basal Expression:\u003c\/b\u003e Tight metabolic control prevents premature expression of potentially toxic target proteins during early growth phases, preserving culture viability and maximizing final protein integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReady-to-Use Liquid Format:\u003c\/b\u003e Supplied as a pre-mixed, sterile-filtered liquid formulation for immediate inoculation without requiring powder reconstitution, autoclaving, or supplement preparation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBroad System Compatibility:\u003c\/b\u003e Fully compatible with standard T7-regulated expression hosts (including BL21(DE3), Rosetta™, and Dual Media strains) cultured in shake flasks, deep-well blocks, or automated bioreactor platforms.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Corning","offers":[{"title":"Default Title","offer_id":51003548500220,"sku":"7005","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0627\/8463\/5132\/files\/s-l1600_36-fotor-2026082122294_Shopify1024.jpg?v=1787365828","url":"https:\/\/lifesciencestrading.com\/zh\/products\/invitrogen-magicmedia-e-coli-expression-medium","provider":"Life Sciences Trading","version":"1.0","type":"link"}