Media for Optimal Cell Growth and Yeild of Escherichia Coli Cultures
LB Media (Luria-Bertani) are common bacterial growth media for Escherichia Coli.
Although already described in the fifties in the early days of phage genetics these media are still widely used in molecular biology.
The two main components of LB media are Tryptone and Yeast Extract. Tryptone is used in a concentration of 10 gram / litre and Yeast Extract in a concentration of 5 gram / litre. Many variations of LB medium only differs in the concentration of NaCl. All LB-Media are listed in order of increasing concentration of NaCl.
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