L7658
LB Broth (Lennox)
EZMix® powder microbial growth medium
Synonym(s):
Lennox broth
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About This Item
UNSPSC Code:
12352200
NACRES:
NA.85
Recommended Products
grade
for molecular biology
Quality Level
description
quick-dissolve, dust-free formulation
sterility
non-sterile
form
powder
technique(s)
microbiological culture: suitable
pH
6.8-7.2(2.5% solution)
application(s)
agriculture
food and beverages
microbiology
storage temp.
room temp
suitability
nonselective for Escherichia coli
nonselective for coliforms
Related Categories
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.
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 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
Components
*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)
10g/L Tryptone
5 g/L Yeast Extract
5 g/L NaCl
0.6 g/L inert binder (EZMix formulation only)
Preparation Note
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.
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).
Legal Information
Zeocin is a registered trademark of Cayla Sarl
related product
Product No.
Description
Pricing
Storage Class Code
11 - Combustible Solids
WGK
WGK 2
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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Protocols
General protocols for growth of competent cells in microbial medium.
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