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Merck

M0428

Millipore

Middlebrook 7H11 琼脂基础

suitable for microbiology, NutriSelect® Plus

别名:

Media for culturing Mycobacteria

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About This Item

分類程式碼代碼:
41171609
NACRES:
NA.85

無菌

non-sterile

品質等級

產品線

BioChemika

形狀

powder

儲存期限

limited shelf life, expiry date on the label

製造商/商標名

NutriSelect® Plus

儲存條件

protect from light at room temperature

技術

microbe id | susceptibility testing: suitable
microbiological culture: suitable

最終pH值

6.6±0.2 (25 °C)

應用

clinical testing
food and beverages
life science and biopharma
veterinary

microbiology

適合性

mycobacteria

一般說明

Middlebrook 7H11 Agar Base media is used for the isolation, cultivation, and sensitivity testing of Mycobacterium species. This agar base contains many inorganic salts which help the growth of Mycobacteria. Citric acid formed from sodium citrate helps in retaining inorganic cations in solution. Glycerol supplies carbon and energy. The Middlebrook OADC Supplement (M0678) contains oleic acid, bovine albumin, sodium chloride, dextrose and catalase. Oleic acid and other long chain fatty acids are essential for the metabolism of Mycobacteria. Dextrose is an energy source. Catalase neutralizes toxic peroxides. Albumin protects tubercle bacilli from toxic agents. Malachite green partially inhibits other bacteria.

應用

There are two types of solid culture media for the primary isolation of Mycobacteria. Egg-based (Lowenstein’s formulation) and agar-based (Middlebrook formulation)
The latter has the following advantages over the egg-based media

The Middlebrook 7H11 agar base does not liquify easily in the presence of contaminating proteolytic organisms

There is less inactivation of added drugs when egg ingredients are absent

成分

成分 (g/L)
酶水解酪蛋白,1.00
硫酸铵,0.50
磷酸二氢钾,1.50
磷酸二钠,1.50
柠檬酸钠,0.40
硫酸镁,0.05
L-谷氨酸,0.50
柠檬酸铁铵,0.04
吡哆素,0.001
生物素,0.0005
孔雀绿,0.001
琼脂,15.00

準備報告

Suspend 10.25 g of Middlebrook 7H11 Agar Base in 450 ml of distilled water. Add 2.5 ml of glycerol (Cat. No. 49767). Boil to dissolve the medium completely. Sterilize by autoclaving at 15 lbs. pressure (121°C) for 15 minutes. Cool to 50°C and aseptically add 1 vial Middlebrook OADC Growth Supplement (M0678). Mix thoroughly before dispensing.

腳註

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.

法律資訊

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

儲存類別代碼

11 - Combustible Solids

水污染物質分類(WGK)

WGK 3

閃點(°F)

Not applicable

閃點(°C)

Not applicable


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Thomas R Lerner et al.
The Journal of clinical investigation, 126(3), 1093-1108 (2016-02-24)
In extrapulmonary tuberculosis, the most common site of infection is within the lymphatic system, and there is growing recognition that lymphatic endothelial cells (LECs) are involved in immune function. Here, we identified LECs, which line the lymphatic vessels, as a
Shuxin Liang et al.
Autophagy, 16(8), 1453-1467 (2019-11-13)
BAG2 (BCL2 associated athanogene 2) is associated with cell fate determination in response to various pathological conditions. However, the effects of BAG2 on M. tuberculosis-induced endoplasmic reticulum (ER) stress remain elusive. Herein, we report that M. tuberculosis infection of macrophages
MacFaddin, J
Media for Isolation-Cultivation-Identification-Maintenance of Medical Bacteria, 1 (1985)

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