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Key Documents

L3522

Sigma-Aldrich

LB Broth (Miller)

Highly-referenced nutrient-rich microbial growth powder medium, suitable for regular E.coli culture

동의어(들):

Luria Broth, Miller’s LB Broth

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About This Item

UNSPSC 코드:
41106200
NACRES:
NA.85

Grade

for molecular biology

Quality Level

설명

Miller′s Modification, 10 g/L NaCl

무균

non-sterile

형태

powder

구성

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

pH

6.8-7.2(2.5% solution)

응용 분야

food and beverages

저장 온도

room temp

적합성

nonselective for Escherichia coli
nonselective for coliforms

일반 설명

Miller′s 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.

애플리케이션

LB Broth (Miller) has been used as a culture medium for E coli, Pseudomonas putida KT2440, Vibrio parahaemolyticus, and soil samples for the isolation of Bacillus spp.
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.

생화학적/생리학적 작용

Luria Broth is used for maintenance and propagation of Escherichia coli. The E. coli grow faster in Luria Broth because the tryptone and yeast supply essential growth factors that the E. coli would otherwise have to synthesize. Luria Broth also contains essential electrolytes for transport and osmotic balance, due to the NaCl component.

특징 및 장점

Miller′s LB powder provides:
  • Easy scale-up using larger package sizes
  • A budget-friendly alternative to liquid
  • Standard formulation

제조 메모

1. Suspend 25 g in 1 L of distilled water.
2. Autoclave for 15 minutes at 121 °C.
To prepare the medium of Luria, Adams and Ting (also known as LC broth: Aseptically add 25 ml of sterile 0.1 M calcium chloride after autoclaving.

재구성

Stir to suspend 25g powder in 1L water. Autoclave for 15 minutes at 121C to sterilize. Allow to cool before making additions, such as antibiotics (if desired).

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable


시험 성적서(COA)

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