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L7275 Sigma

LB Broth (Lennox)

Tablet microbial growth medium

Synonym: Luria Bertani Broth

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Description

Frequently Asked Questions

Frequently Asked Questions are available for this Product.

Components

10g/L Tryptone
5 g/L Yeast Extract
5 g/L NaCl
2.2g/L inert binding agents

Application

Suitable for non-selective cultivation of E. coli strains for cloning, DNA plasmid production and production of recombinant proteins. Also suitable for selective cultivation when appropriate antibiotics are added, including those that require low-salt conditions, such as Zeocin®.

Features and Benefits

Lennox LB tablets provide:
• Convenient small package to eliminate weighing
• Fast preparation – no stirring required

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.

Packaging

100, 500 tablets in poly bottle

Reconstitution

Add each 1.1g tablet in 48.3mL water (no stirring required). Autoclave for 20 minutes at 121C to sterilize. Allow to cool before making additions, such as antibiotics (if desired).

Legal Information

Zeocin is a registered trademark of Cayla Sarl

Price and Availability


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Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3
Protocols & Articles

Articles

Introduction to Microbial Media

Microbiological studies require the availability of different species of bacteria, yeast or viruses in the laboratory. Large scale processes such as fermentation, protein and vaccine production requi...
Keywords: Antibiotics, Cellular processes, Cloning, Culture media, Fermentation, Gene expression, Growth factors, Indicators, Molecular biology, Nutrition, Sterilizations, Vitamins, transformation

Microbiology Introduction

An initial aim of all microbiologists is the reproducible growth of their microbial cultures, no matter whether the microorganisms are of natural origin or have been genetically engineered by man. Re...
Keywords: Absorption, Aerobic, Anaerobic, Antibiotics, Antimicrobials, Buffers, Culture media, Diffusion, Environmental, Filtration, Genetic, Growth factors, Metabolism, Phase transitions, Precipitation, Reductions, Respiration, Sample preparations, Vitamins

Microbiology Theory: Media Preparation

Microorganisms need nutrients, a source of energy and certain environmental conditions in order to grow and reproduce. In the environment, microbes have adapted to the habitats most suitable for thei...
Keywords: Culture media, Digestions, Environmental, Filtration, Growth factors, Indicators, Microbiology, Phase transitions, Precipitation, Vitamins

Protocols

Microbial Growth Protocols

From our library of Protocols, Sigma-Aldrich presents Microbial Growth Protocols
Keywords: Antibiotics

Peer-Reviewed Papers
15

References

Set your institution to view full text papers.
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