1.03858
GranuCult® plus Eosin Methylene Blue Agar
acc. HOLT-HARRIS and TEAGUE; For the isolation and differentiation of E. coli and other gram-negative bacteria
Szinonimák:
EMB agar, Holt-Harris & Teague (HHT) EMB agar, Eosin Methylene Blue Lactose Sucrose agar
Bejelentkezésa Szervezeti és Szerződéses árazás megtekintéséhez
Összes fotó(1)
About This Item
UNSPSC kód:
41106213
NACRES:
NA.74
Javasolt termékek
Minőségi szint
form
powder
tárolási körülmény
dry media
technika/technikák
microbiological culture: suitable
pH
7.1±0.2 (25 °C)
alkalmazás(ok)
food and beverages
pharmaceutical
tárolási hőmérséklet
15-25°C
alkalmasság
selective for coliforms: Citrobacter spp.
selective for enterobacteriaceae (Genus: Proteus Vulgaris)
Általános leírás
GranuCult® plus EMB Agar acc. HOLT-HARRIS and TEAGUE is a low selective and differential medium containing lactose and sucrose and two indicator dyes, Eosin and Methylene Blue. The use of these two indicators allows differentiation between colonies of lactose and/or sucrose fermenting and non-fermenting organisms. Sucrose is included since certain members of the coliform group of microorganism ferment sucrose more readily than lactose. This formulation does not discriminate between carbohydrate utilization (lactose or sucrose).
The peptones provide nitrogen, minerals and amino acids, lactose and sucrose provide the carbon sources. Di-potassium phosphate acts as a buffer whilst Eosin yellowish (Eosin Y) and methylene blue serve as differential indicators and inhibitors. Agar is the solidifying agent.
Coliforms produce blue-black colonies due to the incorporation of an eosin-methylene blue dye complex when the pH drops down. Colonies of Escherichia coli may show a characteristic green metallic luster due to the rapid fermentation of lactose. Lactose- and sucrose-non fermenting bacteria (like most Salmonella and Shigella) will form colourless or transparent amber-coloured colonies, but some strains of Salmonella and Shigella may not grow on this culture medium. Some Gram-positive bacteria and yeasts may grow on this culture medium and usually form pinpoint colonies.
The peptones provide nitrogen, minerals and amino acids, lactose and sucrose provide the carbon sources. Di-potassium phosphate acts as a buffer whilst Eosin yellowish (Eosin Y) and methylene blue serve as differential indicators and inhibitors. Agar is the solidifying agent.
Coliforms produce blue-black colonies due to the incorporation of an eosin-methylene blue dye complex when the pH drops down. Colonies of Escherichia coli may show a characteristic green metallic luster due to the rapid fermentation of lactose. Lactose- and sucrose-non fermenting bacteria (like most Salmonella and Shigella) will form colourless or transparent amber-coloured colonies, but some strains of Salmonella and Shigella may not grow on this culture medium. Some Gram-positive bacteria and yeasts may grow on this culture medium and usually form pinpoint colonies.
Alkalmazás
GranuCult® plus Eosin Methylene Blue Agar is a low selective, differential agar used to identify coliforms especially E. coli. It differentiates lactose fermenters from non-lactose fermenters.It is often the media used when testing the potability of water via the MPN method
Tulajdonságok és előnyök
- Safe and sustainable due to reduced risks associated with fine dust and toxic substance inhalation, resulting in a safer work environment
- Excellent wettability, solubility, and free flowing properties
- Convenient, with minimal component separation and clumping, even under warm or humid conditions
- High batch-to- batch reproducibility
- Prolonged shelf life of up to five years
- High number of test strains exceeding all regulatory demands
- Granulation technology allowing many supplements to be included, with no need to add these separately
Lábjegyzet
We offer two media types: the superior granulated GranuCult® and the cost-efficient powdered NutriSelect® culture media, depending on your needs.
The designations basic, plus, or prime are added to indicate the quality control level, from basic quality control to standard QC plus to prime for full regulatory compliance.
The designations basic, plus, or prime are added to indicate the quality control level, from basic quality control to standard QC plus to prime for full regulatory compliance.
Jogi információk
GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany
NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany
Figyelmeztetés
Warning
Figyelmeztető mondatok
Óvintézkedésre vonatkozó mondatok
Veszélyességi osztályok
Skin Sens. 1
Tárolási osztály kódja
11 - Combustible Solids
WGK
WGK 2
Analitikai tanúsítványok (COA)
Analitikai tanúsítványok (COA) keresése a termék sarzs-/tételszámának megadásával. A sarzs- és tételszámok a termék címkéjén találhatók, a „Lot” vagy „Batch” szavak után.
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