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66481

Millipore

OGYE ChromoSelect Agar Base

NutriSelect® Plus, suitable for microbiology

Synonym(s):

OGYE Agar Base ChromoSelect, Oxytetracycline Glucose Yeast Extract Agar ChromoSelect

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About This Item

UNSPSC Code:
41171607
NACRES:
NA.85

sterility

non-sterile

Quality Level

200

form

powder

shelf life

limited shelf life, expiry date on the label

composition

agar, 12.0 g/L
chromogenic mixture, 1.1 g/L
dextrose, 20.0 g/L
yeast extract, 4.0 g/L

manufacturer/tradename

NutriSelect® Plus

final pH

7.0±0.2 (25 °C)

application(s)

bioburden testing
cleaning products
clinical testing
cosmetics
environmental
food and beverages
personal care
microbiology

suitability

selective and differential for Aspergillus spp.
selective and differential for Candida spp.
selective and differential for Penicillium spp.
selective and differential for Pichia spp.
selective and differential for Saccharomyces spp.
selective and differential for Zygosaccharomyces spp.
selective and differential for molds (General Media)
selective and differential for yeasts (General Media)

Application

OGYE ChromoSelect Agar Base is a selective and differential medium which facilitates rapid isolation of yeasts and moulds from milk and milk products. Oxytetracycline makes the medium more selective by inhibiting the growth of Lactobacilli. A. niger appears as light blue colored colonies with black spores due to presence of chromogenic mixture, C. albicans shows green colored colonies and S. cerevisiae gives colorless colonies.

Preparation Note

Suspend 18.55 g in 500 ml distilled water. Boil to dissolve the medium completely. Sterilise by autoclaving at 121°C for 15 min. Cool to 50°C and aseptically add reconstituted contents of one vial of Oxytetra Selective Supplement (Cat. No. 51239). Mix well and pour into sterile petri plates.

Footnote

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

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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Oxytetracycline-glucose-yeast extract agar for selective enumeration of moulds and yeasts in foods and clinical material.
D A Mossel et al.
The Journal of applied bacteriology, 33(3), 454-457 (1970-09-01)

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