17274

Agar Thermoacidurans

NutriSelect^® Plus, according to APHA, powder, nonselective for Bacillus coagulans, pkg of 500 g, suitable for microbiology

• Synonim(y): acidified proteose-peptone agar
• NACRES: NA.74
• UNSPSC Code: 41171606
• Manufacturer/tradename: NutriSelect^® Plus
• Agency: according to APHA
• Form: powder
• Suitability: nonselective for Bacillus coagulans
• Application(s): bioburden testing; food and beverages, microbiology

Właściwości

• Quality Segment: 200
• agency: according to APHA
• sterility: non-sterile
• form: powder
• shelf life: limited shelf life, expiry date on the label
• composition: agar, 20 g/L , dextrose, 5 g/L , dipotassium phosphate, 4 g/L , manganese sulfate, 0.2 g/L , proteose peptone, 5 g/L , yeast extract, 5 g/L
• packaging: pkg of 500 g
• manufacturer/tradename: NutriSelect^® Plus
• technique(s): microbiological culture: suitable
• final pH: 5.0±0.2 (25 °C)
• application(s): bioburden testing; food and beverages, microbiology
• suitability: nonselective for Bacillus coagulans

Opis

General description

Thermoacidurans Agar is a selective growth medium. It is recommended for culturing and isolating Bacillus coagulans (Bacillus thermoacidurans), a facultative thermophile. This bacterium can thrive in temperatures ranging from 20 to 55°C and at pH levels between 5.0 and 7.0. Thermoacidurans Agar contains proteose peptone and yeast extract, which provide essential nitrogenous compounds, vitamin B complex, and other vital nutrients necessary for bacterial growth. Additionally, dipotassium phosphate is incorporated to buffer the medium, ensuring stable pH levels during incubation. Dextrose is a primary energy source that promotes the development of B. coagulans.

Application

Thermoacidurans Agar is specifically utilized for the isolation, cultivation, and enumeration of Bacillus coagulans (Bacillus thermoacidurans) from canned food products, as they are known to cause flat-sour spoilage in low-acid foods packed in hermetically sealed containers. B. coagulans will form large, cream to white colonies.

Features and Benefits

NutriSelect^® Plus is a powdered culture media offering:

• Quality control with growth promotion test according to industry standards
• Quality assurance acc. to ISO 9001
• Cost-efficient powdered media

Preparation Note

Zawiesić 39,2 g w 1 litrze wody destylowanej. Podgrzać do wrzenia w celu całkowitego rozpuszczenia pożywki. Sterylizować w autoklawie w temperaturze 121°C przez 15 minut. Schłodzić do temperatury 50°C i przelać do sterylnych płytek Petriego.

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

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Informacja o środkach bezpieczeństwa

• Klasa składowania: 11 - Combustible Solids
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)