质量水平
描述
Bactident™ E. coli 1.13303
表单
liquid (ready-to-use)
保质期
210 days
特点
ready-to-use
组成
(n-Butanol; Hydrochloric acid; 4 dimethylaminobenzaldehyde)
包装
pkg of (1 x 30 ml, Plastic bottle)
技术
microbe id | specific enzyme detection: suitable
pH值（酸碱度）
<1 (20 °C in H2O)
转变温度
flash point 36 °C
密度
0.92 g/cm3 at 20 °C
应用
environmental
food and beverages
储存温度
2-8°C
适用性
Enterobacter spp.
Escherichia coli
一般描述
Kovac′s reagent is a biochemical reagent composed of n-Butanol, hydrochloric acid, and 4-dimethylaminobenzaldehyde. It is used for the detection of indole producing microorganisms. Tryptophan is abundant in trypticalle digested peptone. Some microorganisms can cleave tryptophan to give pyruvic acid, ammonia, and indole. Indole then reacts with 4-dimethylaminobenzaldehyde to form a dark red dye. As tryptophan also gives a color reaction with 4 dimethylaminobenzaldehyde, it must be separated from the indole. This is achieved by selectively extracting indole with butanol.
应用
Bactident™ Kovac′s Indole reagent is used for the detection of indole producing microorganisms in food and beverages, and environmental samples. This is suitable for the identification of E. coli.
联系
Replaces: 1.11350.0007
分析说明
Indole formation
- Escherichia coli ATCC 25922 (WDCM 00013):
+
- Proteus vulgaris ATCC 8427: +
- Enterobacter aerogenes ATCC 13048: -
Incubation: 24 hrs.; 35 °C; aerobic.
Reference: DEV-Tryptophan broth.
- Escherichia coli ATCC 25922 (WDCM 00013):
+
- Proteus vulgaris ATCC 8427: +
- Enterobacter aerogenes ATCC 13048: -
Incubation: 24 hrs.; 35 °C; aerobic.
Reference: DEV-Tryptophan broth.
法律信息
BACTIDENT is a trademark of Merck KGaA, Darmstadt, Germany
警示用语：
Danger
危险分类
Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 3 - Met. Corr. 1 - Skin Corr. 1 - Skin Sens. 1
储存分类代码
3 - Flammable liquids
WGK
WGK 1
闪点(°F)
96.8 °F
闪点(°C)
36 °C
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