42571

Dey-Engley Neutralizing Agar

suitable for microbiology, NutriSelect^® Plus

• Synonym(s): D/E Agar Disinfectant Testing, D/E Neutralizing Agar
• UNSPSC Code: 41171605
• NACRES: NA.85

Properties

• sterility: non-sterile
• Quality Level: 200
• form: powder
• shelf life: limited shelf life, expiry date on the label
• composition: agar, 15 g/L ; bromocresol purple, 0.02 g/L ; casein enzymic hydrolysate, 5 g/L ; dextrose, 10 g/L ; lecithin, 7 g/L ; polysorbate 80, 5 g/L ; sodium bisulfite, 2.5 g/L ; sodium thioglycollate, 1 g/L ; sodium thiosulfate, 6 g/L ; yeast extract, 2.5 g/L
• manufacturer/tradename: NutriSelect^® Plus
• technique(s): microbiological culture: suitable
• final pH: 7.6±.2 (25 °C)
• application(s): environmental; food and beverages; pharmaceutical; microbiology
• suitability: bacteria

Description

Application

Dey-Engley Neutralizing Agar is used in disinfectant testing where neutralization of the antiseptics and disinfectants is important for determining its bactericidal activity.

Preparation Note

Suspend 54.02 grams in 1000 ml distilled water. Heat to boiling to dissolve the medium completely. Sterilize by autoclavingat 15 lbs pressure (121°C) for 15 minutes. Mix well and dispense as desired.

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

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable