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L7658

Sigma-Aldrich

LB Broth (Lennox)

EZMix powder microbial growth medium

Synonyme(s) :

Lennox broth

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About This Item

Code UNSPSC :
41106200
Nomenclature NACRES :
NA.85

Qualité

for molecular biology

Niveau de qualité

Description

quick-dissolve, dust-free formulation

Stérilité

non-sterile

Forme

powder

Technique(s)

microbiological culture: suitable

pH

6.8-7.2(2.5% solution)

Application(s)

agriculture
food and beverages
microbiology

Température de stockage

room temp

Adéquation

nonselective for Escherichia coli
nonselective for coliforms

Description générale

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.

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®.

Caractéristiques et avantages

Lennox LB EZMix powder provides:
  • Granulated, dust-free format for safer handling and faster mixing
  • Convenient small package to eliminate weighing
  • Easy scale-up using larger package sizes
  • Standard formulation

Composants

*Note some of the product sizes available are given in liquid measure. This is a powder format product and those sizes reflect the final reconstituted volume.

10g/L Tryptone
5 g/L Yeast Extract
5 g/L NaCl
0.6 g/L inert binder (EZMix formulation only)

Notes préparatoires

1. Suspend 20.6 g in 1 L of distilled water.
2. Autoclave for 15 minutes at 121 °C.
To prepare Lennox L Broth: Add 1 g glucose and proceed with preparation instructions as above.
To prepare the medium of Enquist and Sternberg: Aseptically add 10 ml of sterile 1M magnesium sulfate after autoclaving.

Reconstitution

Stir to suspend 20.6g powder in 1L water. Autoclave for 15 minutes at 121°C to sterilize. Allow to cool before making additions, such as antibiotics (if desired).

Informations légales

Zeocin is a registered trademark of Cayla Sarl

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable


Certificats d'analyse (COA)

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Consulter la Bibliothèque de documents

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