Merck, 51405-500G-F, MacConkey-Agar (without salt)

Name: MacConkey-Agar (without salt)
Brand: Merck
SKU: 51405-500G-F

Size:500 g, MacConkey-Agar (without salt and crystal violet), Indicator medium, Low selective medium, MAC Agar, NutriSelect® Plus, powder, pH 7.4±0.2 (25 °C), for bacteria, pkg of 500 g, suitable for microbiology

Catalog Number: 51405-500G-F

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Category

Agar Powders

Pack Size500 g

TagsIndustrial Microbiology Microbial Culture Media

CollectionsMerck Cell Culture Supplements & Reagents: Complete Solutions for Research & Bioproduction Merck Roche Life Science Products for PCR, RT‑PCR & Nucleic Acid Purification

Description

General description
MacConkey-Agar (without salt) is a powdered, non-sterile differential medium designed for microbiological applications. It is formulated without salt and crystal violet, making it suitable for culturing a wide range of microorganisms. The medium consists of agar, bile salts, lactose, neutral red, and peptone, which provide essential nutrients and selective properties for bacterial growth.
Application
MacConkey-Agar (without salt) is used for the detection, isolation, and differentiation of coliforms and intestinal pathogens, including Escherichia coli, Salmonella, Shigella, Proteus, and other Enterobacteriaceae. It is particularly useful for culturing urine specimens that may contain large numbers of Proteus species, as the medium restricts their swarming behavior. This media is ideal for clinical testing, environmental monitoring, food and beverage safety, and general microbiological research.
Preparation Note
Suspend 47 g in 1 litre of distilled water. Bring to the boil to dissolve completely. Sterilize by autoclaving at 121°C for 15 minutes. Pour into sterile petri plates. Dry the surface of the gel before inoculation.
Other Notes
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.
Legal Information
GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany
NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany

Specifications

General

NACRES	NA.85
UNSPSC Code	41171606
sterility	non-sterile
form	powder
Quality Level	200
shelf life	limited shelf life, expiry date on the label
composition	agar, 12 g/L
packaging	pkg of 500 g
manufacturer/tradename	NutriSelect® Plus
technique(s)	microbiological culture: suitable
color	dark red
pH	7.4±0.2 (25 °C)
application(s)	clinical testingenvironmentalfood and beverages
suitability	Acinetobacter spp.

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