The formulation for L3022 has not changed over the years. The "low salt" label was added later to help customers identify the formulation more easily.
L3022
Caldo LB (Lennox)
LB Broth (Lennox)
Highly-referenced microbial growth powder medium, low salt, suitable for salt-sensitive E.coli culture.
Sinónimos:
Caldo Lennox, Caldo Luria Bertani
Iniciar sesiónpara Ver la Fijación de precios por contrato y de la organización
About This Item
UNSPSC Code:
41106200
NACRES:
NA.85
En este momento no podemos mostrarle ni los precios ni la disponibilidad
Productos recomendados
grade
for molecular biology
Quality Level
sterility
non-sterile
form
powder
composition
NaCl, 5 g/L
Tryptone, 10 g/L
Yeast Extract, 5 g/L
technique(s)
microbiological culture: suitable
pH
6.8-7.2(2% solution)
application(s)
food and beverages
microbiology
storage temp.
room temp
suitability
nonselective for Escherichia coli
nonselective for coliforms
General description
Lennox LB es un medio para crecimiento microbiano muy citado que se utiliza para el cultivo de E. coli. Este caldo microbiano rico en nutrientes contiene péptidos, aminoácidos y carbohidratos en una formulación baja en sales.
Application
El caldo Luria se utiliza para el mantenimiento y la propagación de Escherichia coli. E. coli crece más deprisa en el caldo Luria porque la triptona y la levadura proporcionan factores de crecimiento esenciales que, de otro modo, E. coli tendría que sintetizar. El caldo Luria contiene también electrólitos esenciales para el transporte y el equilibrio osmóticos, debido al componente NaCl.[1]
Se utilizó para la resuspensión de fracciones celulares de T. pyriformis en un estudio de fraccionamiento de extractos celulares de Trimastix.[2]
Se utilizó para la resuspensión de fracciones celulares de T. pyriformis en un estudio de fraccionamiento de extractos celulares de Trimastix.[2]
Idóneo para cultivo no selectivo de cepas de E. coli para clonación, producción de plásmidos ADN y producción de proteínas recombinantes. También es adecuado para el cultivo selectivo cuando se añaden los antibióticos apropiados, entre ellos los que requieren bajas condiciones salinas, como la zeocina®.
Features and Benefits
El polvo Lennox LB proporciona:
- Un cómodo envase pequeño para no tener que pesar
- Fácil escalado utilizando tamaños de envase mayores
- Una alternativa económica al líquido
- Una formulación estándar
Preparation Note
1. Suspenda 20 g en 1 l de agua destilada.
2. Esterilice en autoclave durante 15 minutos a 121 ºC.
Para preparar el caldo Lennox L: Añada 1 g de glucosa y siga las instrucciones de preparación anteriores.
Para preparar el medio de Enquist y Sternberg: Agregue asépticamente 10 ml de sulfato de magnesio 1 M estéril después de haberlo esterilizado en autoclave.
2. Esterilice en autoclave durante 15 minutos a 121 ºC.
Para preparar el caldo Lennox L: Añada 1 g de glucosa y siga las instrucciones de preparación anteriores.
Para preparar el medio de Enquist y Sternberg: Agregue asépticamente 10 ml de sulfato de magnesio 1 M estéril después de haberlo esterilizado en autoclave.
Legal Information
Zeocin is a registered trademark of Cayla Sarl
Related product
Referencia del producto
Descripción
Precios
Replaced by
Referencia del producto
Descripción
Precios
Storage Class
11 - Combustible Solids
wgk_germany
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
Elija entre una de las versiones más recientes:
Certificados de análisis (COA)
Lot/Batch Number
¿No ve la versión correcta?
Si necesita una versión concreta, puede buscar un certificado específico por el número de lote.
¿Ya tiene este producto?
Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.
Los clientes también vieron
J Benavente et al.
International journal of biological macromolecules, 103, 758-763 (2017-05-27)
The preparation of silver nanoparticles (AgNPs) and their incorporation into the structure of a regenerated cellulose membrane by dip coating is presented. Morphological characterization of the AgNPs (average diameter of 20±2nm) was carried out by SEM/TEM, while elastic, electrical and
Margot Doberva et al.
Frontiers in microbiology, 8, 1152-1152 (2017-07-12)
Quorum sensing (QS) is a density-dependent mechanism allowing bacteria to synchronize their physiological activities, mediated by a wide range of signaling molecules including
Francisco Dávila et al.
The Journal of experimental biology, 221(Pt 6) (2018-02-16)
Bacteria can damage sperm and thus reduce the reproductive success of both males and females; selection should therefore favour the evolution of antimicrobial protection. Eusocial hymenopterans might be particularly affected by such bacterial infections because of their mating ecology. In
I M Ogunade et al.
Journal of dairy science, 100(3), 1780-1794 (2017-01-04)
Inhibiting the growth of Escherichia coli O157:H7 (EC) in feeds may prevent the transmission or cycling of the pathogen on farms. The first objective of this study was to examine if addition of propionic acid or microbial inoculants would inhibit
Víctor González-Alonso et al.
Poultry science, 99(1), 536-545 (2020-05-18)
The objective of the present study was to assess the potential synergistic effect between supercritical carbon dioxide (SC-CO2) and fresh culinary herbs (Coriandrum sativum and Rosmarinus officinalis) on the microbial inactivation of raw chicken meat. The microbiological inactivation was performed
Protocolos
General protocols for growth of competent cells in microbial medium.
-
Are the new batches of the product labeled as "Low salt" consistent with the older batch that does not have the same label? Consistency in experiments is a concern.
1 answer-
Helpful?
-
-
What is the Department of Transportation shipping information for this product?
1 answer-
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
Helpful?
-
-
Will adding magnesium to the culture medium increase cell density?
1 answer-
In microbial broth formulations that do not already contain magnesium, the addition of 10-20 mM MgCl2 or MgSO4 may increase cell densities. You may need to also increase the shaking speed of the incubator.
Helpful?
-
-
What is the difference among the many LB - Lennox products?
1 answer-
LB - Lennox is available in many types to suit your needs. The different product formats include powder, EZMix™ powder, and tablet form. Each of these forms are available with and without agar for easy LB-agar plate preparation.L3022 (LB Lennox powder)L2897 (LB Lennox powder with agar)L7275 (LB Lennox tablets)L7025 (LB Lennox tablets with agar)L7658 (LB Lennox EZMix(TM) powder)L7533 (LB Lennox EZMix(TM) powder with agar)L5542 (LB Lennox pre-poured agar plates)
Helpful?
-
-
What are the differences among the Luria, Lennox and Miller LB formulations?
1 answer-
LB, (originally termed lysogeny broth) was initially composed of tryptone, yeast extract, NaCl and glucose. Soon after, the glucose was omitted (Miller's version), and later the NaCl content lowered by half (Lennox's version). For some applications, even lower salt is required (Luria's low salt version).
Helpful?
-
-
Which bacterial culture medium is the best choice for my application?
1 answer-
Each of the broths will likely grow E. coli very well, but there are still general guidelines for choosing a broth when you are working without a protocol. Generally:LB - Miller and LB - Lennox are used for E. coli growth and maintanence, DNA plasmid production and protein production. The Lennox formulation has a lower salt content required for some salt-sensitive selection antibiotics.LB - Luria low salt is used for special applications where the E. coli growth or other constraints require the lowest possible salt content.Terrific Broth is used for higher yield protein production and high yield DNA plasmid production, because of the faster growth of the E. coli in this medium.SOB is used for protein production, DNA plasmid production and the generation of high-efficiency competent cells.SOC is used for initial growth of competent cells and the transformation procedure.
Helpful?
-
Active Filters
Nuestro equipo de científicos tiene experiencia en todas las áreas de investigación: Ciencias de la vida, Ciencia de los materiales, Síntesis química, Cromatografía, Analítica y muchas otras.
Póngase en contacto con el Servicio técnico
