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Merck
CN

MHA000P2D

Millipore

Wallerstein Differential Broth

ampoule capacity 2 mL, filling volume 2 mL, pack of 50 ampules, for bacteria

别名:

WL Differential broth, WLD

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UNSPSC代码:
41106225
eCl@ss:
32160801
NACRES:
NA.74

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描述

ampoule used in breweries to detect and enumerate bacteria present in small numbers in a mixed flora sample. Cycloheximide inhibits most yeasts and molds.

质量水平

100

无菌性

sterile

表单

liquid

保质期

12 mo.

特点

ready-to-use

包装

pack of 50 ampules

ampoule capacity

2 mL

filling volume

2 mL

颜色

slightly opalescent green-blue

输入

sample type sport drink
sample type bottled water
sample type cosmetics
sample type beer
sample type beverage(s)
sample type beverage(s)
sample type soft drink
sample type cider
sample type food(s)
sample type wine

pH值（酸碱度）

5.5±0.2 (25.0 °C)

应用

environmental
food and beverages
industrial qc (microbial monitoring)
microbiology

相容性

for use with MF-method
for use with Microfil®
for use with MicropreSure®
for use with Milliflex®

运输

wet ice

储存温度

2-8°C

适用性

bacteria

相关类别

一般描述

WL Differential media is recommended for selective isolation and enumeration of bacteria encountered in breweries and industrial fermentations. The presence of cyclohexamide inhibits the growth of yeasts.{4} Ready-to-use Liquid ampoule media solve numerous problems in microbiology laboratories where time, equipment and trained personnel are often in short supply. They are available in convenient, single test 2 mL plastic ampoules, eliminating the manipulation of glass ampoules and avoiding the waste and spoilage associated with bulk packaged media.

应用

WL differential media is used in the growth of acetic acid bacteria, Flavobacterium, Proteus and thermophilic bacteria under aerobic and growth of lactic acid bacteria and Pediococcus under anaerobic condition.{5}

分析说明

QC organisms
纹膜醋酸菌 (ATCC 15973)
细菌显示为小菌落，蓝绿色。 如果耐环己酰亚胺酵母生长，它们会是乳白色、白绿色。
Target Microorganisms: Aciduric bacteria (yeast and mold are inhibited)

法律信息

MICROFIL is a registered trademark of Merck KGaA, Darmstadt, Germany
MICROPRESURE is a registered trademark of Merck KGaA, Darmstadt, Germany
MILLIFLEX is a registered trademark of Merck KGaA, Darmstadt, Germany

储存分类代码

12 - Non Combustible Liquids

WGK

WGK 1

闪点(°F)

Not applicable

闪点(°C)

Not applicable

法规信息

动植物来源培养基

分析证书(COA)

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Compendium of methods for the microbiological examination of foods. 2001
American Public Health Association and others
American Public Health Association, 12, 43-43 (2001)
Paper read at American Society of Brewing Chemists Meeting
Wallerstein Laboratories Communications, 12, 43-43 (1950)

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