LB media formulations have been an industry standard for the cultivation of Escherichia coli as far back as the 1950s.These media have been widely used in molecular microbiology applications for the preparation of plasmid DNA and recombinant proteins. This media has the addition of Kanamycin at 0.05gms/L for use with Kanamycin resistant strains and cells harbouring selection plasmids containing the Kanamycin resistance gene.Peptides and peptones are provided by tryptone. Vitamins and certain trace elements are provided by yeast extract. Sodium ions for transport and osmotic balance are provided by sodium chloride. Tryptone is used to provide essential amino acids to the growing bacteria, while the yeast extract is used to provide a plethora of organic compounds helpful for bacterial growth.
|Shelf Life (days)|
|Storage Temp (°C)|
|Pseudomonas aeruginosa||NCTC 12241||Growth & Cream colonies|
|Escherichia coli||NCTC 12241||Inhibited|
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