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Merck

00446

Universal Microbial Limit Test Membrane

white colored, sterile, diameter 70 mm, suitable for microbiology

Synonyme(s) :

Indicator membrane, ID Membranes

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A propos de cet article

NACRES:
NA.85
UNSPSC Code:
41171621
Sterility:
sterile
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membrane size

70 mm

Quality Level

sterility

sterile

shelf life

limited shelf life, expiry date on the label

storage condition

protect from light

technique(s)

microbe id | specific enzyme detection: suitable

application(s)

clinical testing
cosmetics
environmental
food and beverages
pharmaceutical, microbiology

storage temp.

2-8°C

suitability

Bacillus spp., Escherichia coli, Pseudomonas spp., Salmonella spp., Staphylococcus spp., coliforms

Catégories apparentées

General description

Universal Microbial Limit Test Membrane are substrate-carrying ID membranes used for rapid identification and differentiation of colonies through characteristic color reactions by placing on the agar surface post-incubation. The membranes contain chromogenic substrates such as ONPG, X-Gal, or X-Glu, and other substrates and indicators, which serve as the basis for microbe differentiation by color. The target organisms possess enzyme systems that metabolize the substrates in the membrane, leading to a change of color. The colors can be visually detected on the membrane. This indicates microbial enzymatic activity, which serves to identify the genus and species. This economical, confirmatory, and rapid identification method is suitable for microorganisms from water, food, environmental, and clinical samples.

Application

Universal Microbial Limit Test Membrane is recommended for the detection of pathogenic microorganisms such as E. coli, S. aureus, P. aeruginosa, Bacillus, and Salmonella species from pharmaceutical preparations, raw materials, cosmetic samples, etc. They find their application in various sectors such as the food and dairy industry, water industry, pharmaceutical laboratory testing, cosmetic industry, environmental and sanitary testing, clinical diagnostic, etc.

Analysis Note

Pseudomonas aeruginosa - Colorless Escherichia coli - Pink-purple Staphylococcus aureus - Green to bluish green Salmonella Typhimurium - Colorless Salmonella Abony - Colorless

Classe de stockage

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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D P Franco et al.
Human & experimental toxicology, 39(10), 1405-1416 (2020-05-21)
This study aimed to evaluate the modes of action of harringtonine (HT) and homoharringtonine (HHT) alkaloids in cell with wild (HepG2/C3A) and mutant p53 (HuH-7.5). We performed assays for cytotoxicity, genotoxicity, induction of apoptosis, cell cycle phase, and membrane integrity.
Xuewu Zhu et al.
Environmental science & technology, 54(10), 6365-6374 (2020-04-24)
Traditional polyamide-based interfacial polymerized nanofiltration (NF) membranes exhibit upper bound features between water permeance and salt selectivity. Breaking the limits of the permeability and rejections of these composite NF membranes are highly desirable for water desalination. Herein, a high-performance NF
Michal Gafner et al.
Archives of gynecology and obstetrics, 301(5), 1207-1212 (2020-04-11)
To characterize the population of women who underwent mid-trimester preterm premature rupture of membrane (PPROM) in a country where mid-trimester abortions are legal and available. A retrospective cross-sectional cohort study was conducted at a tertiary referral hospital, during 2013-2016. Mid-trimester
Shu-Hua Lin et al.
Frontiers in microbiology, 11, 584331-584331 (2020-11-27)
Penicillium digitatum is a widespread pathogen among Rutaceae species that causes severe fruit decay symptoms on infected citrus fruit (known as citrus green mold). The employment of fungicides can effectively control the citrus green mold, significantly reducing agricultural economic loss.
Yasamin Soleimanian et al.
Pharmaceutics, 12(4) (2020-04-26)
The objective of the present study was to explore the potential of nanostructured lipid carriers (NLCs) for improving the oral delivery of β-sitosterol, a poorly water-soluble bioactive component with hypocholesterolemic activity. Two β-sitosterol formulations with different solid lipid compositions were

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