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Merck
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Key Documents

1.10765

Millipore

EC (Escherichia coli) broth

GranuCult® prime, suitable for microbiology, for Escherichia coli

동의어(들):

E. coli selective medium, Escherichia coli broth, EC broth

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About This Item

UNSPSC 코드:
41106213
NACRES:
NA.74

Agency

FDA-BAM
ISO 7251

Quality Level

무균

non-sterile

형태

granular

포장

pkg of 500 g

제조업체/상표

GranuCult® prime

저장 조건

dry media (Tightly closed.)

기술

microbiological culture: suitable

색상

beige

pH

6.7-7.1 (25 °C, 37 g/L in H2O, after autoclaving)

solubility

74 g/L

응용 분야

food and beverages
microbiology

저장 온도

15-25°C

적합성

Escherichia coli
Escherichia spp.

일반 설명

Escherichia coli broth is suitable for the selective enrichment, enumeration, and confirmation of coliform bacteria. The lactose content of this medium favors the growth of lactose-positive bacteria, especially coliform bacteria, and E. coli. The bile salts inhibit the growth of Gram-positive bacteria or microorganisms that are not adapted to the intestinal environment. Lactose-positive bacteria metabolize lactose with gas formation.

애플리케이션

Escherichia coli broth is suitable for the selective enrichment, enumeration, and confirmation of coliform bacteria from food and animal feed, and other materials.

특징 및 장점

  • GranuCult® prime offers superior granulated culture media
  • 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 allows many supplements to be included, with no need to add these separately

분석 메모

Appearance (clearness): clear
Appearance (color): yellowish to yellowish-brown
pH-value (25 °C): 6.6 - 7.0
Inoculum on reference medium (Escherichia coli ATCC 25922 (WDCM 00013)): ≤ 1000
Inoculum on reference medium (Escherichia coli ATCC 8739 (WDCM 00012)): ≤ 1000
Inoculum on reference medium (Pseudomonas aeruginosa ATCC 27853 (WDCM 00025)): ≥ 1E+04
Inoculum on reference medium (Enterococcus faecalis ATCC 19433 (WDCM 00009)): ≥ 1E+04
Growth (Escherichia coli ATCC 25922 (WDCM 00013)): +
Growth (Escherichia coli ATCC 8739 (WDCM 00012)): +
Growth (Pseudomonas aeruginosa ATCC 27853 (WDCM 00025)): no limit
Growth (Enterococcus faecalis ATCC 19433 (WDCM 00009)): total inhibition
Gas (Escherichia coli ATCC 25922 (WDCM 00013)): +
Gas (Escherichia coli ATCC 8739 (WDCM 00012)): +
Gas (Pseudomonas aeruginosa ATCC 27853 (WDCM 00025)): -
Gas (Enterococcus faecalis ATCC 19433 (WDCM 00009)): -
Escherichia coli: 24 ± 2 hours at 44 ± 1 °C
other teststrains: 48 ± 2 hours at 44 ± 1 °C

각주

We offer two media types: the superior granulated GranuCult® prime 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.

법적 정보

GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany
NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

11 - Combustible Solids

WGK

WGK 2


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