1.05448

Wort agar

GranuCult^® plus, suitable for microbiology, for yeasts, for molds

• 別名: Selective media for yeasts and molds, Yeasts and molds medium
• UNSPSCコード: 41106213
• NACRES: NA.74

特性

• 無菌性: non-sterile
• 品質水準: 200
• 形状: granular
• 包装: pkg of 5 kg; pkg of 500 g
• メーカー／製品名: GranuCult^® plus
• 保管条件: dry media (Store tightly closed)
• テクニック: microbiological culture: suitable
• 色: beige
• pH: 5.0 (30 °C, 55 g/L in H₂O, after autoclaving)
• 溶解性: 55 g/L
• かさ密度: 520 kg/m³
• アプリケーション: food and beverages; microbiology
• 保管温度: 15-25°C
• 適合性: molds; yeasts

詳細

詳細

Wort agar is used for the cultivation, isolation, and enumeration or enrichment of yeasts. The addition of certain indicator dyes to the medium allows differentiation between yeast and bacterial colonies. The accompanying bacterial flora is weakly suppressed by a pH value of 5.0 and largely by a pH of 3.5.

アプリケーション

Wort agar is suitable for the cultivation, isolation, and enumeration or enrichment of fungi, especially of yeasts.

特徴および利点

• GranuCult^® offers superior granulated culture media
• Safe and sustainable due to reduced risks associated with fine dust and toxic substance inhalation, resulting in a safer work environment
• Excellent wettability, solubility, and free-flowing properties
• Convenient, with minimal component separation and clumping, even under warm or humid conditions
• High batch-to-batch reproducibility
• Prolonged shelf life of up to five years•High number of test strains exceeding all regulatory demands
• Granulation technology allows many supplements to be included, with no need to add these separately

アナリシスノート

Appearance (clearness): clear
Appearance (colour): brownish
Solidification behaviour (2 hrs., 45 °C): liquid
pH-value (25 °C): 4.8 - 5.2
Recovery on test medium (Candida albicans ATCC 10231 (WDCM 00054)): ≥ 70 %
Recovery on test medium (Saccharomyces cerevisiae ATCC 9763 (WDCM 00058)): ≥ 70 %
Recovery on test medium (Saccharomyces cerevisiae ATCC 9080): ≥ 70 %
Recovery on test medium (Rhodotorula mucilaginosa DSM 70403): ≥ 70 %
Growth (Geotrichum candidum DSM 1240): good to very good
Growth (Penicillium commune ATCC 10428): fair to very good
Growth (Aspergillus brasiliensis (formerly A. niger) ATCC 16404 (WDCM 00053)): good to very good
Growth (Trichophyton ajelloi ATCC 28454): fair to good
Incubation: 7 days; 28 °C; aerobic (yeasts 3 days).

脚注

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.

法的情報

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

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

安全性情報

• 保管分類コード: 11 - Combustible Solids
• WGK: WGK 3