N7404

Medium für die Niacinbestimmung

suitable for microbiology, NutriSelect^® Plus

• UNSPSC-Code: 41171608
• NACRES: NA.85

Eigenschaften

• Form: powder
• Qualitätsniveau: 200
• Haltbarkeit: limited shelf life, expiry date on the label
• Hersteller/Markenname: NutriSelect^® Plus
• Methode(n): microbiological culture: suitable
• pH-Endwert: 6.8±0.2 (25 °C)
• Anwendung(en): food and beverages; pharmaceutical; microbiology
• Lagertemp.: 2-8°C
• Eignung: nonselective for Lactobacillus spp.

Beschreibung

Anwendung

Empfohlen für die mikrobiologische Bestimmung von Niacin oder Niacinamid.

Komponenten

Zusammensetzung (g/L)
Casein-Säurehydrolysat, vitaminfrei, 12.00
Dextrose, 40.00
Natriumacetat, 20.00
L-Cystein, 0.40
DL-Tryptophan, 0.20
Adeninsulfat, 0.02
Guanin-Hydrochlorid, 0.02
Uracil, 0.02
Thiamin-Hydrochlorid, 0.0002
Calciumpantothenat, 0.0002
Pyridoxin-Hydrochlorid, 0.0004
Riboflavin, 0.0004
p-Aminobenzosäure, 0.0002
Biotin, 0.00008
Kaliumphosphat dibasisch, 1.00
Kaliumphosphat monobasisch, 1.00
Magnesiumsulfat, 0.40
Natriumchlorid, 0.02
Eisen(II)-sulfat, 0.02
Mangan(II)-sulfat, 0.02

Angaben zur Herstellung

Suspend 7.51 g of Niacin Assay Medium in 100 ml of distilled water. Boil to dissolve the medium completely. Mix well to distribute the slight precipitate evenly. For the assay, dispense 5 ml of medium per assay tube (containing increasing amounts of standard or unknown) and make up the total volume to 10 ml per tube with distilled water. Sterilize by autoclaving at 15 lbs. pressure (121°C) for 10 minutes. Cool immediately.

Fußnote

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.

Rechtliche Hinweise

GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany

NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany

Sicherheitshinweise

• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 1
• Flammpunkt (°F): Not applicable
• Flammpunkt (°C): Not applicable
• Persönliche Schutzausrüstung: Eyeshields, Gloves, type N95 (US)