70196

Wort Agar

suitable for microbiology, NutriSelect^® Basic

• Code UNSPSC : 41171605
• Nomenclature NACRES : NA.74

Propriétés

• Stérilité: non-sterile
• Niveau de qualité: 100
• Forme: powder
• Durée de conservation: limited shelf life, expiry date on the label
• Composition: agar, 17.0 g/L ; ammonium chloride, 1.0 g/L ; dextrin, 2.5 g/L ; dipotassium hydrogen phosphate, 1.0 g/L ; malt extract, 15.0 g/L ; D-maltose, 12.5 g/L ; peptone (from casein), 1.0 g/L
• Fabricant/nom de marque: NutriSelect^® Basic
• Technique(s): microbiological culture: suitable
• pH final: 4.8±0.2 (25 °C)
• Application(s): agriculture; bioburden testing; environmental; food and beverages; microbiology
• Adéquation: selective by low pH for Candida spp.; selective by low pH for Pichia spp.; selective by low pH for Saccharomyces spp.; selective by low pH for Zygosaccharomyces spp.; selective by low pH for molds (General Media); selective by low pH for yeasts (General Media)

Description

Description générale

Wort Agar is a general purpose mycological medium especially suitable for the cultivation and enumeration of yeasts.

Application

General purpose mycological medium especially suitable for the cultivation and enumeration of yeasts. Addition of special indicator dyes allows differentiation between yeast and bacterial colonies (Rapp).

Wort Agar has been used to cultivate Aspergillus niger.

Notes préparatoires

Suspend 50 g in 1 litre of distilled water. Add 2.35 g glycerol Cat. No. 49767) and bring to the boil to dissolve completely. Sterilize by autoclaving at 121°C for 15 minutes. Do not overheat! Prolonged heating will diminish the gel strength of the medium.

Autres remarques

Impedimetric detection of yeast and mold

Note de bas de page

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.

Informations légales

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

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

Informations sur la sécurité

• Code de la classe de stockage: 11 - Combustible Solids
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Gloves, type N95 (US)