(r8) ProtocolsRecipesLysogenyBrothAgar < Lab

---+++ LB: Lysogeny Broth / Luria-Bertani (Miller) Agar

Combine in a 2 L flask the following:

|  *1.5L*  |  *Component*  |
| 15 g | Tryptone | 
| 7.5 g | Yeast Extract |
| 15 g | <nop>NaCl | 
| 24 g | Agar | 
| 1.5 ml | 5% Antifoam | 

Add dH<sub>2</sub>O to 1.5 L. Autoclave.

*Notes and variations:*
   * [[http://en.wikipedia.org/wiki/Lysogeny_broth][Common synonyms]] are Luria-Broth and Luria-Bertani medium.
   * This is the "Miller" formulation of LB with 10 g <nop>NaCl per liter (1% w/v). *Another common formulation has only 5 g <nop>NaCl per liter (0.5% w/v)!* They are NOT interchangeable.
   * If you are performing _sacB_ counter-selection, you may need to use even lower salt concentrations.
   * To make "soft" or "top" agar for phage studies, use only 7-8 g agar per liter.

Barrick Lab > ProtocolsMediaRecipes > ProtocolsRecipesLysogenyBrothAgar

Topic revision: r8 - 2020-02-11 - 20:28:28 - Main.JeffreyBarrick

Lab.ProtocolsRecipesLysogenyBrothAgar moved from Lab.ProtocolsRecipesLysogenyBroth on 2015-06-23 - 14:17 by Main.JeffreyBarrick -