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Merck
CN

07817

Oxidase Reagent according to Gaby-Hadley B

suitable for microbiology

Synonym(s):

Gaby-Hadley Reagent B

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About This Item

NACRES:
NA.85
UNSPSC Code:
41171621
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Product Name

Oxidase Reagent according to Gaby-Hadley B, suitable for microbiology

agency

according to ISO 9308-1:2014

product line

BioChemika

form

liquid

shelf life

limited shelf life, expiry date on the label

composition

N,N-dimethyl-p-phenylenediamine (oxalate), 0.1 g
dist. water, 100 mL

technique(s)

microbe id | specific enzyme detection: suitable

antibiotic activity spectrum

Gram-negative bacteria

application(s)

agriculture
clinical testing
environmental
food and beverages
pharmaceutical

microbiology

suitability

Plesiomonas spp.
Aeromonas spp.
Neisseria spp.
Pseudomonas spp.

Quality Level

Application

The reagent is used for detection of oxidase activity of a bacterial culture along with Oxidase Reagent A according to Gaby-Hadley.

General description

Oxidase Reagent can be used to detect oxidase positive organisms. The reagent is colorless in its reduced state and dark purple in its oxidized state. On applying to an oxidase-positive colony, it changes color.

Storage Class

10 - Combustible liquids

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves


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Neelima Garg
Laboratory Manual of Food Microbiology (2010)

Articles

Chromogenic media enable the selective detection of S. aureus, which produce bluish-green colonies that are clearly differentiated from other species.

For microbiologists the most fundamental stain was developed in 1884 by the Danish bacteriologist Hans Christian Gram.

There are many other methods of detection to indicate the presence of E. coli. Review common tests and biochemical reactions for this contaminant.

Specific agars and broths support detection and cultivation of Campylobacter, requiring complex media with essential supplements.

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Protocols

General guidance for the detection and enumeration of Enterobacteriaceae in food according to EN-ISO 8523:1991 and EN-ISO 4832:1991, respectively.

Listeria is a public health concern, affecting elderly, pregnant, newborns, and immunocompromised individuals.

根据EN-ISO 8523:1991和EN-ISO 4832:1991分别对食品中肠杆菌进行检测和计数的一般指南。

近年来,李斯特菌病被定为重大的公共健康问题。这种病的主要感染对象是老年人、孕妇、新生儿和免疫功能低下者。

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