L3022 Sigma

LB Broth (Lennox)

Powder microbial growth medium

Synonym: Luria Bertani Broth


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10g/L Tryptone
5 g/L Yeast Extract
5 g/L NaCl

General description

Lennox LB is a highly-referenced microbial growth medium used for the cultivation of E. coli. This nutrient-rich microbial broth contains peptides, amino acids, water-soluble vitamins, and carbohydrates in a low-salt formulation.


Stir to suspend 20g powder in 1L water. Autoclave for 15 minutes at 121C to sterilize. Allow to cool before making additions, such as antibiotics (if desired).

Features and Benefits

Lennox LB powder provides:
• Convenient small package to eliminate weighing
• Easy scale-up using larger package sizes
• A budget-friendly alternative to liquid
• Standard formulation

Legal Information

Zeocin is a registered trademark of Cayla Sarl

Price and Availability

New Competent Cells


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