LB Agar, Lennox

Item No.  NCM0170A

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LB Agar, Lennox is used in molecular genetic studies in a laboratory setting. LB Agar, Lennox is not intended for use in the diagnosis of disease or other conditions in humans.

LB Agar is nutritionally rich, developed by Lennox for growth and maintenance of pure cultures of recombinant strains of E. coli. These strains are generally derived from E. coli K12, which are deficient in B vitamin production. This strain of E. coli has been further modified through specific mutation to create an auxotrophic strain that is not capable of growth on nutritionally deficient media. LB Agar provides all nutritional requirements of these organisms. LB Agar contains half the sodium chloride level of the Miller formulation of LB Agar, allowing the researcher to select the optimal salt concentration for a specific strain.

Analyte Non-selective
Brand NEOGEN Culture Media
Formula Liter
Enzymatic Digest of Casein 10.0 g/L
Yeast Extract 5.0 g/L
Sodium Chloride 5.0 g/L
Agar 12.0 g/L
Grams per Liter 32.00
Liters per 500g 14.00
Mass 500 g
Package Dimensions 4.60 IN x 2.90 IN x 8.60 IN
Package Weight 1.35 LB
Plates per 500g 780.00
  1. Suspend 32 g of the medium in one liter of purified water.
  2. Heat with frequent agitation and boil for one minute to completely dissolve the medium.
  3. Autoclave at 121°C for 15 minutes.
  4. Cool to 45-50°C.
Previous Item Number Product was previously known as Acumedia Product: 7289 LB Agar, Lennox; and LabM Product: LAB174 LB Agar, Lennox